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Tender Value
₹2.4 Cr
EMD Value
₹2.4 L
Closing Date
20 Apr 2026, 6:00 pmClosed
TRANSPORT MANAGER, A.M.T.S.
Development of Infrastructure for Charging Station at AMTS Plot, Ritz Hotel Compound at Lal Darwaja.
291821
19 / 2025 x 26
Open
Miscellaneous Works
Ahmedabad
3 documents required · 3 mandatory
₹3,600
Transport Manager, Ahmedabad Municipal Transport Service, Ahmedabad
₹2.4 L
30 Mar 2026
30 Mar 2026
30 Mar 2026
20 Apr 2026
30 Mar 2026
1. Estimated cost put up to tender
Hundred Twenty Two Rupees and Ninty Two Paisa Only)
2 Tender Fees Rs.3600 = 00 (Demand Draft or pay order in favor of
(Non-Refundable) Transport Manager, Ahmedabad Municipal Transport
3 Tender validity period 180 days (One Hundred and Eighty Days) from the date
of opening of the tender.
4 Time of Completion 06 Months (Including Monsoon Period)
5. Earnest Money Deposit Rs. 2,41,005.00 (Demand Draft or pay order in favour of
Transport Manager, AMTS. Demand Draft or Bank
Guarantee shall be from Nationalized Bank / Scheduled
Bank and valid for 180 days. Refer Annexure “C”
6. Eligibility Criteria for Bidders 1. Contractor Registered with in “B” Class and /or above
Category with A.M.C./Government of Gujarat or other
States Governments, Semi Government Bodies or with
Central P.W.D. (Contractor shall submit the valid
registration copy and if its under renewal kindly submit
the document supporting the same.)
2. The average annual financial turnover during last
years, ending 31 March of the previous financial year
should be at least 30% of the estimated cost. It shall be
supported with Chartered Accountant’s Certificate.
Turnover may be escalated with @ 10% as escalating
factor for every year. (Last 3 Years)
3. Contractor shall preferably have all the mandatory
respective authority licenses and registrations which are
applicable, including GST and Valid Contractor’s
Registration etc.
4. The Contractor shall have experience of having
successfully completed similar works during last 5 years
ending last day of the month previous to the month in
which tender is invited as following :
1) Three similar completed works cost not less than the
amount equal to the 40% of the tender amount, OR (2)
Two similar completed works costing not less than the
amount equal to the 50% of the tender amount, OR (3)
One similar completed works costing not less than the
amount equal to the 80% of the tender amount. Similar
Works means buiding road & Fabrication only from State
goverment ,central government or central state
undertaking organization
The bidders shall also furnish the completion certificate /
work order along with the tender documents in physical
format. (Completed work should not calculated
enhancing period)
7 Clause for MOU Main tenderer can enter MOU with any angency who has
average annual financial turnover during last 3 years,
ending 31 March of the previous financial year should
be at least 30% of the estimated cost.The angency who
has entered MOU with main tenderer should have five
years old firm and should have complated at least two
works costing 50% of estimated amount or one work
costing 80% of estimated amount in private/Govt
sector.The angency should have experiance in
fabrication works. But if main tenderer has experiance in
fabrication works there in no need for MOU.
8 Submission of EMD and Tender Fees Scan Copy of Tender Fees and EMD drafts / instrument shall
be sent physically in separate sealed cover each for EMD and
Tender Fees along with Tender as described in the invitation of
tender and submitted to Transport House First Floor, Central
Office (Tender Box), Outside Jamalpur Gate, Behrampura,
Ahmedabad 38 00
Price Bid shall not be sent in physical submission.
9. (A) Security Deposit 5 % of value of accepted tender cost in form of Bank
Guarantee (to be submitted on award of LOI)
10 (B) Retention Money 2 % of the gross value of the work done in each Running
Account bill.(to be retained till completion of work with Final Bill)
11 Mode of sending the Tender Tenders should be submitted as per the dates mentioned in
Documents tender notice, along with all necessary documents as asked, it
should be sent physically duly signed with the Seal of the
contractor in the multi –envelope system By RPAD/Speed post/
Hand Delivery in sealed covers.
12 Compensation for delay @ 0.1% of the total project cost (Quoted amount) per day of
Delay (for uncompleted works only per day) after Scheduled
Date of Completion. Maximum upto 10 % of the contract
amount put to tender from the date of delaying the said work
upto the date of completion and handing over to the AMTS or
the amount as decided by the Transport Manager, A.M.T.S.
13 Rejection of Tender Tenders which do not fulfill all or any of conditions or are
submitted incomplete in any respect will be rejected outright.
The Transport Manager reserves the right to reject any or all
the tenders without assigning any reason thereof. Conditional
tenders will not be accepted and will be rejected outright.
14 Scope of Work (Within range of 10%) The Transport Manager reserves the rights to increase /
decrease the scope of work within range of 10%. No claim to
that effect shall be entertained.
15 Secured , Material, Labour Advance No secured / material / labour advance will be paid against any
raw material procured & stocked at site.
16 Labour cess 1% of the gross value of the work done will be deducted in each
running bill. (This shall be Non -refundable)
17 GST All Rate of Tender Are Exclusive GST. The Bidder shall
have to quoteThe Rate Accordingly.
18 Material Testing Charges Material Testing Charges shall be borne by the Contractor, and
in any case, if the material testing charges are borne by
A.M.T.S, the same shall be deducted from the Contractor’s
Immediate Next Running Bill.
19 Date of Commencement of Work As per Work Order From the Client or clear possession of site
to start the work, which ever is later
20 Defect liability period 12 (Twelve) months after issue of completion certificate as per
the format given by the A.M.T.S.
(B) Performance Bond 5 % of Actual Cost of work done in form of Bank Guarantee (to
be submitted on completion of work and to be retained till defect
liability period)
21 Solvency Certificate Latest one year Valid Solvency Certificate of value not less than
20% of the Tender Amount from the Nationalised or Scheduled
Bank Only. (Also Refer Annexure “ C”)
Addendum / Corrigendum to the tender documents may be issued till the last date and
time of submission of the tenders, to clarify documents or to affect modification in the
design or contract terms shall be downloaded from the website https://tender.nprocure.com shall be duly signed and
shall be submitted along with the technical bid. All addendum / corrigendum issued by the A.M.T.S. shall become part
of the tender documents. Any tender submitted without this addendum shall be rejected outright.
Any tenders without fulfilling the eligibility criteria, shall be rejected outright, without assigning any reason thereof.
Seal and Signature of the Bidder Transport Manager (A.M.T.S.)
Date: Ahmedabad Municipal Transport Service
INFORMATION FOR BIDDERS
The AHMEDABAD MUNICIPAL TRANSPORT SERVICE ,( hereinafter called “the Employer”) invites sealed
Tender document from reputed and qualified bidders for the construction of Works detailed in the Table below:-
Sr. Name of Works Approximate Earnest Money Completion
No. value of works (Rs.) Deposit (Rs.) Period
1 Development of Rs.2,41,00,422.92 Rs.2,41,005.00 06 Month Including
Infrastructure for Charging Monsoon Period.
Station at AMTS Plot, Ritz
Hotel Compound at Lal
2. The time limit shall be considered from the actual possession of site given to the contractor to start
3. Any documents attached herewith are liable for cross check with various agencies / departments,
which may take time. Thus it is instructed hereby to the tenderers, that any fake data, if proven shall result into
the breach of the contract. This may lead to terminate the contract on as and when basis and the final
decision in this regard will be with Transport Manager, Ahmedabad Municipal Transport Service, and
Ahmedabad. This decision shall be abiding to the contractors / bidders at any point of time.
4. The contractors shall be asked to co-operate for the evaluation process and checking the data furnished
by them herewith.
5. Important Infomation to Tenderer.
Before filling the price bid it is necessary to contact department to Know the nature of work to be done. No
request will be Entertained after opening of price bid.
AHMEDABAD MUNICIPAL TRANSPORT SERVICE
ENGINEERING DEPARTMENT
RATE TENDER AND CONTRACT FOR WORKS ADDITIONAL INSTRUCTIONS TO
PERSONS TENDERING
1. Competency of Tenderer: - No contract will be awarded except to responsible bidder capable
of performing the class of work completed. Before the award of the contract, any bidder may be
required to show that he has the necessary facilities, experience ability and financial resources to
perform the work in satisfactory manner within the time stipulated contractor may be required to furnish
the department with the statement as to their experience and their financial status.
2. Tender will be deemed to have inspected the site and to have satisfied himself as to the nature of all
works all exiting roads, water-way and other means of communication and access to and from the site
and work and the building that may be required for temporary purpose iii connection with the
contraction, completion and maintenance of the works and must make Ins own inquiries as to work,
yard sites and depot and dumps and as to the acquisition of such additional sites and areas as may be
necessary for temporary purpose for constructing, completing and maintaining the works.
3. Payment :- The tenderer must understand clearly that the rates quoted are for completed works
and include all costs due to labour, scaffolding, plant, supervision, service work power, royalties and
octroi etc. and to include all extras to cover the cost of night work if and when required and no claim for
additional payment beyond the prices or rates quoted will be entertained and the tenderer will not be
entitled subsequently to make any claim on the ground of misrepresentation or on the ground that he
was supplied with information given by any person (whether the member is the employee of
Engineering Department of Transport Service or not.) Any failure on his part to obtained all necessary
information for the purpose of making his tender and filling the several prices and rates there in shall not
relieve him from any risks or liabilities arising out of or consequent upon the submission of the tender.
4. Tender Forms: Every 'blank' in the form of tender and in the schedule must be filled up by the
tenderer and must return the complete tender document.
CONTRACORS TO PLEASE READ THIS CAREFULLY
1. The rates or items in Schedule 'B' must be given in words and figures. Amount of each item must
also be entered in columns and grand total of the amount must be struck out by the tenderer.
also be entered in columns and grand total of the amount must be struck out by the tenderer.
2. If the tender is taken in favor of the company, a power of attorney in favor of the person who
may have the signed the tender for company must accompany the tender.
3. Solvency Certificate of a Bank of a Revenue Officer or an amount up to 20 % of the tendered
cost plus the amount of words on hand still to be executed will have to be produced by the
4. Earnest money must be accompanying the tender.Tenderer may pay earnest money in the form
of a CROSSED demand draft/ Bank Guarantee of aproved Bank drawn on favor of '' Transport
Manager Ahmedabad Municipal Transport Service'' and Earnest money in cash shall not be
5. The Contractor shall have to furnish Income Tax Clearance Certificate before tender is
accepted and intimate assessment number and ward under which is assessed .
6. Copies of certificate as regards previous experience if any, must accompany the tender.
7. Declaration showing all works on hand with the contractor and the value of works that remains
to be executed in each case must accompany tender.
8. All pages of Schedule 'B' and specifications should be initiated by the Contractor.
9. All corrections, erasures and over writing should be initiated by the Contractor.
10. Discrepancies and Adjustment of Errors: - Any error in quantity or amount in schedule 'B'
showing items of works to be carried out shall be adjusted in accordance with the following
(a) In the event or a discrepancy between discretion in words and figures quoted by tenderer in the
'rates' column, the description in words shall prevail.
(b) In the event of an error occurring in the 'amount' column of the schedule 'B' showing items of
work, as a result of wrong multiplication of the unit-rata and quantity, the unit-rate shall be
regarded as firm and multiplication shall be amended on the basis of the rates.
(c) All errors in totaling in 'amount' column and in carry forward totals shall be corrected.
(d) Any rounding off of amounts against 'items' or 'totals' shall be ignored.
10A (i) It may please be noted that tender will be considered as invalid, especially, if the requirements
as per instruction No. 1 to 10 above are not complied with before submitting the tender. Also
please read carefully the face-sheet and "General Rules and Directions for the guidance of
Contractors" of this form.
(ii) Right is reserved any or all tender(s) without assigning any reason(s) thereof.
11 In addition to the above, the •tender will also be liable to rejected outright if:-
(i) The tenderer prpose any alteration in the works specified or in the time allowed for
Carrying out the work or any condition or correction made in any code or mode of
Schedule 'B' or specifications.
(ii) Any of the page or pages of the tender is/are removed or replaced.
(iii) Ail corrections, additions or pasted slips are not initialed by the tenderer.
(iv) Any erasure is made by him in the tender tender.
(v) The tendered or in the case of firm, each partner or he person holding the power of attorney
there pf does not siege or the signature/s is/are not attested by a witness on
(vi) The relevant page of tile tender in the space provided for the purpose.
12 A certificate of registration as approved contractor should be attached with the tender.
(A) In respect of the tenders from the Co-operative Society, a solvency certificate of an amount
equal to 20% of the amount of the work put to tender will have to be produced along with the
tender or a certificate regarding the borrowing capacity of the society issued by the Legal
Assistant, Directorate of Cottage industries will have to be produced along with the tender,
13 (a) Estimate Quantities given in BOQ are Approximated. It may be increased or decreased as
per site requirement. Payment for the same will paid only against executed quantity as per
contract rate. No extra paymet will paid more than total estimate of approved value of bus stand.
(b) Contractor will have to arrange transportation for visit the each site with AMTS's officials for
Survey and bus stand location will decided at site and work may executed accordingly decided
by AMTS's officials.
(c) During foundation work any underground utilities found and if it may be effect the work
execution, contractor will have to shift location as guided and no extra payment will made for the
(d) Contractor have to removed surplus earth at any lead from the site of all bus stand and clean
the site everyday.
(e) All bus stands must be stereo type and it may be detechable as well can reinstall on any
other foundations also.
(f) For Execution work of bus stand at different places in city contractor have to possess of
suitable size of hydra crain and loading vehicle for carting and installation of bus stand, remove
of debris from site.
In case of defective description or ambiguity, the Engineer-in-charge should Issue further
instructions directing in what manner the work is to be carried out it being understood that the best
modem practice is to be followed. The Contractor should forthwith comply with such Instruction.(3) The
Contractor should take no advantage of any apparent error or omission in drawings or specifications and
the Engineer-in-charge shall make such corrections and interpretations as necessary to fulfill the intent
of the plans and specifications.
Tender document for: Development of Infrastructure for Charging Station at
AMTS Plot, Ritz Hotel Compound at Lal Darwaja.
Declaration Form
(1) I/We hereby declare that l/we will erect the bus shelter anywhere at proposed place as
directed by deparement throughtout limit of Ahmedabad city.
(2) I/We hereby declare that I/We have carefully studied the conditions of contract specifi-
cations and other tender documents of this work and agreed to execute the same
Signature of the Contractor
General Description
(a) If several sub works are included they should be detailed in a separate list.
(b) Estimated cost: Rs.2,41,00,422.92
c) Earnest money: Rs 2,41,005.00 appx.1 % of the estimated Amount of tender work.
The amount of earnest money to be deposited shall be in accordance with memorandum of work
(1) SECURITY DEPOSIT:-
(i) 5 % of the estimated cost paid in cash if the estimated cost
(ii) (a).1..% of the estimated cost paid by D.D/Pay order as Earnest money along with
(iii) Bank guarantee from a Nationalized Bank or Bank approved by the A.M.C. For Amount equal to
5% of the estimated cost.
(d) Time allowed for the completion of work from date of written order to commence. Six Month
(Including monsoon)
(f) Give schedule, where necessary, showing dates by which the various items are to be completed
Terms and Conditions of Contract
Clause-1 Security Deposit -
The person/persons whose tender may be accepted (here in after called the 'Contractor' which
expression shall unless excluded by or repugnant to the context include his heirs, executers,
administrators and assignees shall (A) (within one day for a contract of Rs. 1,000 or less or two days for
a contract of more than Rs. 1,000 but less than Rs. 2,000 and so on up to a limit of ten days which can be
extended up to 15 days by the Transport Manager, if he thinks it fit to do so for a contract of Rs.
or more of the receipt by him of the notification of the acceptance of his tender.) deposit with the
Transport Manager in cash or AMTS securities endorsed to the Transport Manager. Provided always the
event of the contractor depositing a lump sum by way of security deposit as contemplated at (A) above,
then and in such case, if the sum so deposited shall not amount to ........ percent of the total estimated
cost of the work, it shall be lawful for AMTS at the time of making any payment to the Contractor for
work done under the contract to make up the full amount of .......percent by deducting a sufficient sum
from every such payment as last aforesaid until the full amount of the security deposit is made up. All
compensation or other sums or money payable by the
Contractor to AMTS under the terms of this Contract may be deducted from, or paid by the sale of a
sufficient part of his security deposit or from the interest arising there-from, or any sums which may be
due or may become due by AMTS the Contractor on any account whatsoever, and in the event of his
security deposit being reduced by reason of any such deduction or sale as aforesaid, the Contractor
shall, within ten days thereafter, make good in cash or Government securities endorsed as aforesaid
any sum or sums which may have been deducted from or realized by sale of his security deposit or any
part thereof. The security deposit referred to. when paid in cash may, at the cost of the depositor, he
converted in to Interest Bearing Securities provided the depositor has expressly desired this in writing.
If the amount of the security deposit to be paid in a lump within the period specified at (A) above
is not paid, the tender/contract already accepted shall be considered as cancelled and legal steps shall
be taken against the Contractor for recovery of the amounts. The Security deposit lodged by a
Contractor shall be refunded after the expiry of three months from the date on which the final bill is paid
or after the expiry of the date up to which the contractor has agreed to maintain the work in good order,
whichever is later. The security deposit logged by the con-tractor shall be returned to him on the expiry
of the period of guarantee mentioned in clause 17-A after deducting the-reform the amount of
expenses, if any, due to AMTS under this agreement.
Clause-2 Compensation or delay -
The time allowed for carrying out the work as entered in the tender shall be strictly observed by the
Contractor and shall be reckoned from the date on which the order to commence work is given to the
Contractor. The work shall throughout the stipulated period l of the contract be proceeded with.
all due diligence (time being deemed to be the essence of the contract on the part of the Contractor)
and the Contractor shall pay, as compensation, an amount equal to one percent or such smaller
amount as the Transport Manager whose decision in writing shall be final), may decide, of the amount
of estimated cost of the whole work as shown in the tender for every day that the work, remains
uncommenced or unfinished after the proper dates. And further to ensure good progress during the
execution of the works, the contractor shall be bound in all cases in which the time allowed for any work
exceeds one month to complete as under :-
@ This sentence to be substituted for,.i.e last sentence of Clause 1 in the case of contract where the
works are to be executed by the) Contractor according to the specifications recommended by him.
1/4 the of the work in 3/8 of the time.
1/2 -do- 1/2 of the time.
3/4 -do- 3/4 of the time.
The following proportions will usually be found Suitable in 1/4, 1/2,
3/4 of the time
Reasonable progress of earth work 1/6, 1/2, 3/4 of the total value of the work to be done,
-do- -do- of masonry work 1/10, 4/10, 8/10
In the event of the Contractor failing to comply with this condition, he shall be liable to pay as
compensation an amount equal to one percent or such smaller amounts as the Transport Manager
(whose decision in writing shall be final) may decide of the said estimated cost of the whole work for
every day that the due quantity of work remains incomplete, provided always that the total amount of
every day that the due quantity of work remains incomplete, provided always that the total amount of
compensation to be paid under the provisions of this clause shall not exceed 10 percent of the work as
shown in the tender.
Clause-3 Action when whole of security deposit is forfeited -
In any case, in which under any clause or clauses of this contract, the Contractor shall have rendered
himself liable to pay compensation amounting to the whole of his security deposit (whether paid in one
sum or deducted by installments) or in the case of amendment of the work owing to serious illness or
death of the Contractor or any other cause, the Transport Manager on behalf of the AMTS shall have
(a) To rescind the contract, of which rescission notice in writing to the Contractor under the hand of the
Transport Manager shall be conclusive evidence and in that case the security deposit of the Contractor
shall stand forfeited and be absolutely at the disposal of AMTS.
(b) To employ labour paid by the AMTS and to supply materials to carry out the work or of any part of
works, debiting the Contractor with the cost of the labour and the price of the materials (as to the
correctness of which cost and price the certificate of the Asst. City Engineer snail be final and
conclusive against the Contractor) and crediting him with the value of the work done, in all respects in
the same manner and at the same rates as if it had been carried out by the Contractor under the terms
of this contract, and in that case the certificate of the Asst. City Engineer as to the value of the work
done shall be final and conclusive against the Contractor.
(c) To order that the work of the Contractor be measured up and to take such part thereof as shall be
not executed out of his hands and to give it to another Contractor to complete, in which case any
expenses which may be incurred in excess of the sum which would have been paid to the original
Contractor, if the whole work had been executed by him, (as to the amount of which excess expenses
the certificate in writing of the Asst. City Engineer shall be final and conclusive), shall be borne and paid
by the original Contractor and shall be deducted from any money due to him by AMTS under the
contract or otherwise or from his security deposit or the part thereof.
In the event of any of the above course being adopted by the Transport Manager, the Co-
ntractor shall have no claim to compensation for any loss sustained by him by reason of his having
purchased or procured any materials or entered into engagements or made any advances on account
of or with a view to the execution of the work or the performance of the contract.
* Note :- The quantity of the work to be done within a particular time to be specified above shall be fixed
by the Officer competent to accept the contracts after taking in to consideration the circumstances of
each case and inserted in the blank space kept for the purpose and the Contactor shall abide by the
program of detailed progress laid down by the Asst. City Engineer
contract shall be rescinded under the provision aforesaid, the contractor shall not be entitled to recover
or be paid any sum for any work, therefore actually performed by him under this contract unless and
until the Asst. City Engineer shall have certified in writing the performance of such work and the amount
payable in respect thereof and he shall only be entitled to be paid the amount so certified.
Clause-4 Action when the progress of any particular portion of the work is
Unsatisfactory -
If the progress of any particular portion of the work is unsatisfactory the Asst. City Engineer
shall, not-with-standing that the general progress of the work is satisfactory in accordance with the
conditions mentioned in clause 2, be entitled to take action under clause 3 (b) after giving the contractor
10 days, notice in writing and the Contractor will have no claim for compensation for any loss sustained
by him' owing to such action.
Clause-5 Contractor remains liable to pay compensation if action not taken under Clause 3 &
In any case in which any of the powers conferred upon the Transport Manager by clause 3 and
4 here-of shall have become exercisable and the same shall not have been exercised, the non exercise
thereof shall not constitute a waiver of any of the conditions hereof and such power shall not-
withstanding be exercisable in any future case of default by the Contractor under any clause or clauses
before he is declared liable to pay compensation amounting to the whole of his security deposit and the
liability of the Contractor for past and future compensation snail remain unaffected. In the event of the
Transport Manager taking action under clause 3, he may, if he so desires, take possession of all or any
tools, plants, materials and store, in or upon work or the site thereof or belonging to the Contractor or
procured by him and intended to be used for the execution of the work or any part there-of. paying or
allowing for the same in account at the contract rates or in the case of contract rates not being
applicable, at current market rates to be certified by the Asst. City Engineer whose certificates thereof
shall be final, In the alternative the Asst City Engineer, may after giving a notice in writing to the
Contractor or his clerk, or the works Forman or other authorized agent require him to remove such
tools, plants, materials or stores from promises within a time to be specified in such a notice and In the
event of the Contractor failing to comply with any such requisition the Transport Manager may remove
them at the contractor's expenses or sale them by auction 10 private sale at the risk and cost of the
Contractor in all respects and the certificate of the Asstt. City Engineer as to the expenses of any such
removal and the amount and the proceeds and expense of any such sale shall be final and conclusive
against the Contractor.
Clause-6:- Extension of time limit
If the Contractor shall desire an extension of the time for completion of the work on the ground of his
having been unavoidably hindrance in its execution or on any other ground, lie shall apply in writing to
the Asst. City Engineer before the expiration of the period stipulated in the tender or before the
expiration of 30 days from the date on which he was hindrance as aforesaid or on which the cause for
asking for extension occurred, whichever is earlier and the Asst. City Engineer may, if in his opinion,
believes that there are reasonable grounds for granting an extension, grant such extension as he thinks
necessary or proper. The decision of the Transport Manager in this matter shall be final.
Clause-7:- Final certificate
On completion of the work. Contractor shall be furnished with a certificate by Asst. City Engineer
(here in after called the Engineer-in-charge) of such completion but no such certificate shall be given
nor shall the work be considered to be completed until the Contractor shall have removed from the
premises on which the work shall have been executed all scaffolding, surplus materials and rubbish,
and shall have cleaned off the from all wood work, doors, windows. walls, floor or other part of any
building, in or upon which the work has been executed or of which he may have had possession for the
purpose of executing the work, nor until the said works shall have been measured by the engineer-in-
charge or where the measurements have been taken by his subordinates until they have received the
approval of the engineer-in-charge, the measurements being binding and conclusive against the
contractor. If the contractor shall fail to comply with requirements of this clause as to the removal of
scaffolding surplus materials and rubbish and cleaning off dirt on or before the date fixed for the
completion of the work, the engineer-in-charge may at the expense of the contractor, remove such
scaffolding, surplus material and rubbish and dispose off the same as he thinks fit and clean off such
dirt as aforesaid and the contractor
shall forth-with pay the amount of oil expenses so incurred but shall have no claim in respect of any
such scaffolding or surplus materials as aforesaid except for any sum actually realized by the sale
Clause-11:- Works to be executed in accordance with specifications,drawings,
The Contractor shall execute the whole and every part of the work in the most substantial and
workman like manner and both as regards materials and in other respects in strict accordance with
specifications. The Contractor shall also conform exactly, fully and faithfully to the design, drawings and
instructions in writing relating to the work signed by the Engineer-in-charge and lodged in his office and
to which the Contractor shall be 'entitled to have an access for the purpose of inspection at such office
or on the site of the work during office hours. The Contractor will be entitled to receive two sets of
contract drawings and working drawings as well as certified copy of the accepted tender .long with the
work-order free of cost. Further copies of the contract drawings and working c' awing if required by him
shall be supplied at the rate of Rs. ....………. per set of contract drawing arid Rs. ....………. per working
drawing except where otherwise specified.
Clause-12:- Alterations in specifications and designs not to invalidate
The Engineer-in-charge shall have power to make any alterations in or additions to the original
specifications, drawings, designs and instructions that may appear to him to be necessary or advisable
during the progress of the work and the Contractor shall be bound to rry out the work in accordance
with any instructions in this connection which may be given to him in writing signed by the Engineer-in-
charge and such alteration shall not invalidate the contract and may auditioned work which the
Contractor may be directed to do in the manner above specified as part of the work shall be carried out
by the Contractor on the same conditions in all respects on which he agreed to do the main work and at
the same rates as are specified in the tender for the main work. Rates for works not entered in
estimated or schedule of rates of the division/department And if the additional or alteration work
Includes any class of work for which no rate is specified in this contract when such class of work shall
be carried out at the rates entered in the Schedule of Rates of the Division or, at the rates mutually
agreed upon between the Engineer-in-charge and Contractor, whichever are lower/If the additional or
altered wore, for which no rate is entered in the Schedule of Rates of the Division, is ordered to be
carried out before the rates are agreed upon, then the Contractor shall within seven days of the date of-
receipt by him of the order to carry out the work inform the Engineer-in-charge of the rate, he shall by
notice in writing, be at liberty to cancel his order to carry out such class of work and arrange to carry out
such class of work and arrange to carry it out in such manner as he may consider. advisable, provided
always that if that Contractor shall Commence work or incur any expenditure in regard there-to before
the rates shall have been determined as lastly hereinbefore mentioned then in such case, he shall only
be entitled to be paid <n respect of the work carried out or expenditure incurred by him prior to the date
of the determination of the rate as aforesaid according to such rate or rate as shall fixed by the
Engineer-in-charger In the event of a dispute, the decision of the Transport Manager of the AMTS shall
Where, however, the work is to executed according to the designs, drawings and specifications
recommended by the Contractor and accepted by the competent authority, the'- alterations above
referred to shall be within the scope of such designs, drawings and specifications appended to the
Extension of time in consequence of additions or alteration:-
The time limit for the completion of the work shall, be, extended in the proportion that the
increase in the cost occasioned by alterations or additions bears to the cost of the original contract work
and the certificate of the Engineer-in-charge as to such proportion shall be conclusive
Clause-15 :- No claim to any payment or compensation for alteration in or
restriction of work
If at any time after the execution of the .contract documents he Engineer-in-charge shall for any reason
whatsoever, require the whole or, any part of the work, as specified in the tender to be stopped for any
period or shall not require the whole part of the work to be carried out at all or to be carried out by the
Contractor, he shall give notice in writing of the fact to the Contractor who shall thereupon suspend or
stop the, work totally or partially, as the case may be. In any such case, except as provided hereunder
the Contractor shall have no claim to any payment or compensation whatsoever on account, of .any
profit or advantage which might have derived from the execution of the work in full but which he did not
so derive in consequence of the full amount of the work not having been carried out or on account of
any loss that he may be put to on account of materials purchased or agreed to be purchased for
unemployment of labour recruited by him. He shall not have also any claim for compensation by reason
of any alterations having been made in the original specifications, drawings, designs and instructions
which may involve any curtailment of the work as originally contemplated. Where, however, materials
have already been purchased or agreed to be purchased by the Contractor before receipt by him of the
said notice, the Contractor shall be paid for such materials at the rates determined by the Engineer-in-
charge provided they are not in excess at requirement and are of approved quality and/or shall be
compensated for the loss, if any, that he may be put to, in respect of material agreed to be purchased
by him, the amount of such compensation to be determined by the Engineer-in-charge, whose
decision shall be final. If the Contractor suffers any loss on account of his having to pay labour charts
during the period during which the stoppage of work has been ordered under this clause the Contractor
shall, on application, be entitled to such compensation on account of labour charges as the -Engineer-
in-charge, whose decision shall be final may consider reasonable. Provided the Contractor shall not be
entitled to any compensation on account of labour charges. If in the opinion of the Engineer-in-charge,
the labour could have been employed by the Contractor elsewhere for the whole or part of the period
during which the stoppage of the work has been ordered as aforesaid.
Clause-16 :- Contractor liable for damage and for imperfections for twelve
months after completion certificate
If the Contractor or his workman, of servants shall break, deface, injure or destroy any part of a
building in which they may be working or any building, road fence, enclosure or grassland or cultivated
ground continues to the premises on which the work or any part thereof is being executed or if any
damage shall be done to the work fram any cause whatever while it is in progress or if any imperfection
become apparent in it within three months from the grant of a certificate of - completion, final or
otherwise, by the Engineer-in-charge, the Contractor shall make good the same at his own expenses
or in default the Engineer-in charge may cause the same to be made good by other workmen and
deduct the expenses (of which the certificate of the Engineer-in charge shall be final) from any sums
that may then be due or may there after become due to the Contractor or from his security deposit or
the proceeds of sale thereof or a sufficient portion thereof.
Clause-17 :- Works to be under direction of Asst. City Engineer-
All works to be under the contract shall be executed under the direction and subject to the approval in
all respects of the Asst. City Engineer of the AMTS who shall be entitled to direct at what point or
points and in what manner they are 10 be commenced and from time to time carried on.
Clause-30 :- Decision of Transport Manager to be final —
Except where otherwise specified in the contract and subject to the powers delegated to him by AMTS,
the code, rules then in force the decision of the Transport Manager shall be final, conclusive and
binding on all parties to the contract upon all questions relating to the meaning of the specifications,
designs, drawings and ins auction hereinbefore mentioned and as to the quality or workmanship or
materials used on the work or as to any other question, claim, right, matter or thing. Whatsoever, in any
way arising out of or relating to the contract, designs, drawings, specifications, estimates, instructions,
of these conditions or otherwise concerning the works or the execution of failure to execute the same,
whether arising during the progress of the work or after the completion or abandonment thereof.
Clause-31 :- Action where no specification
In the case of any class of work for which, there is no such specification, such work shall be carried
out in accordance with the I S specification and in the event of there being no I S specification, then, in
such case the work shall be earned out in all respect in accordance with the instructions and
requirements of the Engineer-in-charge.
Clause-32 :- Compensation under the workmen's Compensation Act
The Contractor shall be responsible for and shall pay any compensation to his workmen payable under
the workman's Compensation Act,1 923 (VIII of 1923), (here in after called the said Ad,) for injuries
caused to the workmen. If such compensation is paid by AMTS as principal under sub section(l) section
12 of the said Act on behalf of the Contractor, it shall be 'recoverable by AMTS from the Contractor
under sub section (2) of the said section. Such Compensation shall be recovered in the manner laid
down in Clause 1 above.
Clause-33 :- Medical Aid to workmen
The Contractor shall be responsible for and shall pay the expenses of providing medical aid to any
workmen who may suffer a bodily injury as a result of an accident. If such expenses are incurred by
AMTS, the same shall be recoverable from the Contractor forthwith and be deducted without prejudice
to any other remedy of AMTS, from any amount due or that may become due to " the Contractor.
Clause-34 :- Safety & First Aid . '
The Contractor shal! provide all necessary personal safety equipment and first aid available for the'-use
of the parsons employed on the site and shall maintain them on the same condition suitable for
immediate use at any lime and shall comply with the following regulations in connection therewith :-
(a) The worker's shall be required to use the equipment so provided by the Contractor and Contractor
shall lake adequate steps to ensure proper use of the equipment by tt-iose concerned.
(b) When work is carried on in proximity to any place where there is a risk of drowning, all necessary
equipment shall be provided and kept ready for use and all necessary steps shall be taken for the
prompt rescue of any person danger.
(c) Adequate provision shall be made for prompt first aid treatment all injuries likely to be sustained
during the course of the work.
Ciause-35 :- Minimum age of person employed, the employment of donkeys
and or other animals and the payment of fair wages .
(i) No Contractor shall employ any person who is under the age of 18 years.
(ii) No Contractor shall employ donkeys or other animal's "with breaching of string or
thin rope The breaching must be at least three inches" wide and should be of
(i) No animal suffering from sores, lameness or emaciation or which is immature
shall be employed.
(iv) The Engineer-in-charge or his Agents authorized to remove from the work
person or animal found working which does not satisfy these conditions and no
responsibility shall be accepted by AMTS for any delay-caused in the completion
of the work by such removal.
(v) The Contractor shall pay fair and reasonable wages' to the workmen employed
by him in the contract undertaken by him. In the event of any dispute arising
between the Contractor and his workmen on the grounds that the wages paid are not
fair and reasonable, the dispute shall be referred without delay to the Engineer-in-charge
who shall decide the same. The decisionA of the Engineer-in-charge shall be conclusive
and binding on the Contractor but such decision shall not in any way affect the condition
in the contract regarding the payment to be made by AMTS at the sanctioned tender
(ii) The Contractor shall provide drinking water facilities to the worker laborers
employed on AMTS works. Amenities relating to sanitation shall also be
provided to the works / laborers employed on works (in suburban areas). If the
Contractor fails to comply with these provisions, the Engineer-in-charge, shall
give notice in writing and if the Contractor shall not provide this facility to the
workers/labourers within a period of ten days from the date of the notice in
wining, the Engineer-in-charge shall thereupon make the' arrangement for
drinking water at the cost of the contractor.
vii) The Contractor shall provide the amenity of proper shed and shelter to the
workers /laborers and their children. AMTS works as soon as the work starts. If
the Contractor fails to provide shoe and shelter, than the Engineer - in-charge
shall provide the same at the cost of Contractor.
Any sum of money due and pays 's to the Contractor (including the security deposit returnable to the
Contractor under this contract shall be appropriated by the AMTS and shall be set off against any claim
of the Contractor ' itch the AMTS for the payment of a sum of money arising out of or under any other
contract made by the Contractor with the AMTS. When no such amount of' the purpose of the recovery
from the Contractor, against any claim of the AMTS is available, such a recovery shall be made from
the Contractor as.errears of land revenue,
Clause-45:- Acceptance of conditions compulsory before tendering for work
Any Contractor who does not accept these conditions shall not be allowed to tender for works
Clause-46 :- Prices quoted by the Contractor .
The price quoted by the Contractor shall not in any case exceed the controlled price, if any fixed by
AMTS or reasonable price which it is permissible for him to charge a private purchaser for the same
class and description of goods under the provisions of Hoarding and profiteering Preventration
Ordinance, 1943 as amended from time to time. If the price quoted exceeds controlled price or the Price
permissible under Hoarding and profiteering Prevention
Ordinance, the Contractor will specifically mention this fact in his tender along with the reasons for
quoting such higher price. The purchaser, at his discretion, will in such case, exercise the right or rev-
ising the price at any stage so as to conform with the controlled price permissible under the Hoarding
and profiteering Prevention Ordinance. This discretion will be exercised without prejudice tc any clher
action that may be taken against the Contractor.
Clause-49 :- Local Labour from Employment Exchange
The Contractor should, as far as possible, obtain his requirement of laborers, skilled and
unskilled from the nearest Employment Exchange so as to utilize the local employment potential, If
there are no local Employment Exchange or such Exchanges are not able "to provide the required
laborers locally, suitable lab ours should be utilized to the maximum extent possible.
Clause-50 :- Fair wages .
If a Contractor fails to pay within 'T (seven) days to tue laborer(s) the minimum wages prescribed
by the Government under ^g Minimum wages Act, 1948 as in force from time to time, the Engineer-in-
charge shall be at liberty of deduct the amount payable to the labour(s)/ worker(s from his (Contractors)
bills or deposit (s) payable by the Contractor after making due inquiries and establishing the claim(s) of
the labour(s) worker(s). The Contractor shall not be entitled to any payment or compensation on
account of any loss that the (Contractor) may have to iccur- en account of the action as aforesaid a
notice in writing to the Contractor shall be issu- ed by the Engineer-in-charge regarding wages as per
Minimum wages Act. in force at the re-Levant time if the Contractor does not act as aforesaid within
seven days, then the action contemplated as above shall be taken against him.
Clause-51 :- Shed for materials.
The Contractor will have to construct shed for storing materials with locking arrangement. The
materials will be taken for use in the presence of the Departmental; persons. No material will be allowed
to be removed from the site of work:
Clause-52 :- List of machinery.
The Contractor shall also give a list of machineries, in his .possession and which he proposes to
Clause-53 :- Power roller on rental
Power-roller, if available, shall be supplier by the department on usual rental basis .
Clause-54 :- Local labour on normal rates.
The Contractor shall .have to engage local labour and local persons seeking employment wherever
available on normal rates.
Clause- 55 :- Vaccination against small-pox/cholera.
The Contractor shall employ only such labour who shall produce a valid certificate of having been
vaccinated against small-pox/choiera within a period of last three years.
Clause-56 :- Pure and wholesome water for laborers
The Contractor shall provide an adequate supply of pure and wholesome water for the use of
labourers. This provision shall be at the rate of not less than 10 gallons per head no provision need be
made where there is a suitable nalla, river or well within 250 meters of the camp.
(A) The contractor shall construct trench or semi permanent latrines for the use of the laborers.
such latrines shall be on the scale of not less than 5 per 100 persons in the camper Sep-
arate latrines shall be provided for men and women. The laborers may, at their option, ba
allowed to use either the trench system or the latrine system.
(B) The contractor shall build a sufficient number of huts on a suitable plot of land for
the use of the laborers according to the following specification.
(i) Huts of bamboos and grass may be constructed.
(ii) A good site shall be selected. High Ground, removed, from, jungle but well
provided with trees, shall be chosen wherever it is available. The neighborhood of
tank, jungle,grass avoided.Camps should not be established close to large cutting
or cutting of earth work.
(i) The. lines of huts shall have open spaces of at least 4 meters between rows,
(ii) when a good natural site can not be procured, particular attention should be given to the
(vi) There should be no overcrowding. Floor space at the rate of 30 square feet per
head shall be provided. Care should be taken to see that huts are kept clean and
(A) The contractor shall construct a sufficient number., of bathing/places, every unit of 20 persons
being provided with a separate bathing place. Such bathing planks should be, suitably screened
and separate place provided for men and women.Washing places should also be provided for the
purpose of washing clothes. Every unit of 30 persons shall have at least one washing place.
(B) The Contractor shall make sufficient arrangements for: draining, away the sullaga
water es well as water from the bathing and washing places and shall dispose of this
waste, water in such a way as not to cause nuisance.
(E) The Contractor shall engage medical officer with a traveling dispensary for a camp
containing 500 or more persons, if there is no other private" dispensary situated within 8 kilometers
(F) The Contractor shall provide the necessary staff for effecting the satisfactory conservancy and
cleanliness of the camp to the satisfaction of the AMTS officers. At least one sweeper per
persons should be engaged.
(G) The Transport Manager shall be consulted, before opening a labour camp and his
instructions on matter, such as, the water-supply, sanitary conveniences, the camp site,
accommodation and food supply shall be followed by the Contractor.
(a) The authorities in charge of the colonies should get the labourers inoculated against,
cholera and plague at the time of recruitment, if they are not inoculated or
vaccinated within 6 months prior to and date of recruitment.
(a) When in any labour camp there is an outbreak of an epidemic disease or is treated with such
an outbreak tne authorities in charge of the labour camps should ensure that all the inmates of
the labour colonies are inoculated or vaccinated, as the case may be depending on the
disease, within 72 hours after the outbreak.
(b) The authorities in charge of the labour colony should arrarange to communicate by
wire regarding the outbreak of the epidemic disease, on the very day of the
outbreak, to the Transport Manager.
(c) When the authorities in charge of the labour colony suspect or have reason to
believe that any inmate of the labour colony is suffering from the infections or contagious
disease, they shall forthwith arrange for the segregation of such persons in isolated huts to be
specifically provided for the purpose and also for their treatment.
(e) As regional malaria epidemic outbreaks are likely to occur in such project area the authorities in
charge of the labour colonies should report promptly the occurrence of unusual incidence of
cases of malaria to the Health Officer of the AMTS and also arrange to institute all necessary
anti-malaria measures as may be advised by the Health Officer.
(f) The authorities in charge of the colonies also should arrange to' carry out any other
measures that may be recommended by the officials of the Health Department necessary to prevent or
control the spread of disease.
Clause-57 :- Secured Advance
(Date & Signature of the Contractor), (Signature of the Asstt.City Engineer)
SCHEDULE- " B "
Memorandum showing Items of work to be carried out
Item Quantities estimated Item of Estimated rates Total amount
No. but may be more or work in in words Unit according to
less figures estimated
As per separate sheet attached.
Note-1 All work shall be carried out as per Public Works Department Handbook and other specifications of
AMTS or as directed.
Note-2 Rates quoted include clearance of site [proior of commencement of work and its close] in all respects
and hold good for work under all condition, site moisture weather etc.
Date & Signature of Contractor Signature of Asst.C.E..
Note : To be continued on additional Sheets, if found necessary. A.M.T.S.
: GENERAL SPECIFICATIONS:
The work shall 'be completed-within Six Month (Inclusive of monsoon) after the order to start
The detail of reinforcement of R, C.C. work shall be as per design and instruction of City Engineer and his
order will be considered final. The Contractor shall have to maintain,, account of steel cement and other
materials that may be brought by him on site. This account shall use regularly maintained and kept open for
inspection by AMTS staff. Watering of all the item shall be done as per instructions. Mixing of concrete shall
be done by j concrete mixer machine. Arrangements of bringing vibrator for R.C.C. work if required shall
have to be made by the contractor.
The Contractor shall remain responsible for workmen's compensation, if any, when such case occurs.
The Contractor shall arrange for red lamps at night and, fencing and pagi and shall be responsible for any
damage of life and limb or property, if any. happen, during the execution of work. In case of dispute for
unseen or overlooked items, the decision of Transport Manager shall be final. The Contractor shall have to
give site clean of all rubbish on completion of work and hand over the building with final finishing of the work
as directed. All the rejected materials shall' be removed from site within 24 hours by the Contractor at risk
For-mixing mortar either for masonry or for plaster or for any other purpose contractor shall have
to prepare trough or bigger size and mix the mortar in the trough in required proportion, in no case he
shall be allowed to mix the mortar either on floor or any finished surfaces.
The Contractor' shall have to make his own arrangement' for water required for the work and the water
charges as per the prevailing rates of Corporation brief in water meter readings.
If any extra item crops up during the progress of work the same shall be carried out by the
Contractor and he shall be paid at the rate fixed by the Transport Manager as per the rate analysis
based on current market rates.
If in the interest of the AMTS it is necessary to change either any site or the design of the proposed
work the Contractor shall. Carry out the same at his quoted rates without charging any extra and he will
paid at the rates quoted by him and no claim for extra subsequent charges made will be entertained.
If the work is not completed within the time specified i.e.-.Twenty Four months from the "date of
order to start the-work penalty of Rs. 500.- (Rupees Five. Hundred) per day, of delay shall be recovered
from the immediate bills payable to the Contactor.
The cubical contents of the cement bag shall be taken as 1.20 cft,per bag and the Contractor shall
have to prepare the measure boxes according to this measures.
The R.C.C. or specified work shall not be done on Sunday and Holiday except in emergency or
when technical requirements late such that continuity of work should be maintained aid that too will be
with; prior permission or the competent authority. | Retention money 'at the rate of 2% shall Be
deducted from every running bill of the Contractor and which will be paid at the time of Final 'bill
Contractor will be fully responsible for compliance of the various provisions under Contract
Labour Act, 1970 and the Rules framed there under.-
As per circular No. MGR 2176 (96)(ii) 2418(1) Dated 31-8-77-^sued by Government of Gujarat,
Contractors' are requested to procure their quarry materials required for construction work through
legal sources ie. only from the quarry lease holders permit holders or middle-n and who satisfies the
contractor as to the legality of the source of purchase by him of these materials.
• @ Conditional tender shall not be-accepted.
Terms & Conditions For Tender No - 19/ 25 x
1. The area of work is Entire Ahmedabad so Tenderer has to
Execute Work at any place as directed by the department.
2. The Tenderer is responsible for any mishap happens like Fatal,
Injury & any Disability to the labour or his employee during the
Execution of work.
3. The Tenderer will be required to do any work immediately after
Getting Requirement from the department. In case of delay
Rs 300/ Day will be charged as penalty & same will be
Deducted from the bill.
4. The specifications & mode of measurements of all items will be
Follow as per standard practice in A.M.C. or Govt. department or
As per I.S.code.
5. The Tenderer will be responsible for any theft of material.
6. The tenderer has to arrange his own light connection for wellding
& reviting. Tenderer has to arrange power genearator at all locations.
7. The tenderer will be alloted place for erection of bus shelter & no
objection will be entertained regarding non execution of work.
8. After allotement of work order tenderer has to fabricate & erect
sample bus shelter as per design & specfication & same has to
be approved by the departement. After written approval tenderer will
be allowed to fabricate othe bus shelters.
9. The tenderer has to fabricate bus shelters during the time period
as per direction of departement.If the tenderer failed to fabricate bus
shelters as per requirment of departement, then security deposited will be
forfitedin that case tenderer cannot
raise any objection or compansation for less number of bus shelters.
10. Tenderer has to fill qouated rate in all the items as per abstract & any
item not filled then in that case tender will be rejected.
I HAVE READ ABOVE TENDER CONDITION CAREFULLY & IS
BOUND TO AGREE THE SAME.
Contractor's Signature & Stamp
REGULATIONS FOR LABOURS FOR CONTRACTORS
The Contractor shall at all times during the continuation of the Contract, comply fully with all existing Acts,
regulations and bylaws including all statutory amendments and re-enactment of State or Central Government and
other local authorities and any other enactments, notifications and acts that may be passed in future either by the
State or the Central Government or local authority, including Indian Workmen's Compensation Act. Contract
Labour (Regulation and Abolition) Act 1970 and Equal Remuneration Act 1976, Factories Act, Minimum Wages
Act, Provident Fund Regulations, Employees Provident Fund Act, schemes made under the same Act and also
Labour Regulations as revised Health and Sanitary Arrangement for Workmen, Insurance and other benefits and
shall keep Employer indemnified in case any action is commenced by competent authorities for contravention by
the Contractor. If the Employer is caused to pay or reimburse, such amounts as may be necessary to cause or
observe, or for non-observance of the provisions stipulated henceforth on the part of the Contractor, the
Architect/Employer shall have the right to deduct from any money due to the Contractor, his amount of
Performance Security or recover from the Contractor personally any sum required or estimated to be required for
making good the loss or damage suffered by the Employer, responsibility in connection with the employees of the
contractor, who shall, in no case, be treated as the employees of the Employer at any point of time.
a) The Contractor shall pay the labourers engaged by him on the work not less thanfair wage which
expression shall mean, whether for time of piecework, the respective rates of wages fixed by the local
authorities as fair wages for the area payable to the different categories of labourers or those notified
under the Minimum Wages Act for corresponding employees of the Employer, whichever may be higher.
b) The Contractor shall, not with standing the provisions of a contract to the contrary, cause to be paid a fair
wage to labourers indirectly engaged on the Works, including any labour engaged by sub/contractors in
connection with the said works as if the labourers had been directly employed by him.
i) The Contractor shall before he commences the work, display, and correctly
maintain in a clean and legible condition at a conspicuous place on the Site, notices in English and in a
language spoken by the majority of the workers, stating therein the rate of wages which have been fixed
as fair wages and the hours of work for which such wages are earned and send a copy of such notices to
Record of wages etc.
The contractor shall maintain records of wages and other remuneration paid to his employees in such form as
may be convenient and as per the requirements of the PMC/ Employer/ Architect and the Conciliation Officer
(central), Ministry of Labour Government of India, or such other authorized person appointed by the central or
State Government and the same shall include the following particulars of
a) Name, worker's number and grade;
b) Rate of daily or monthly wage;
c) Nature of work on which employed;
d) Total number of days worked during each wage period;
e) Total, amount payable for the work during each wage period; All deductions made from the wage with
details in each case of the ground for which the deduction is made;
f) Wage actually paid for each wage period.
g) The Contractor shall provide a Wage Slip for each worker, employed on the Works.
h) The Wage records and Wage Slips shall be preserved for at least 12 months after the last entry for
Inspection of Wage Records.
i) The Contractor shall allow inspection of the aforesaid Wage Records and Wage Slips to the
Architect/PMC and to any of his workers or to his agent at a convenient time and place after due notice is
received, or to the Employer or any other person authorized by him on his behalf.
j) The Employer/Architect or any other person authorized by them on their behalf shall have power to make
enquiries with a view to ascertaining and enforcing due and proper observance of the Fair Wages Clause.
He shall also have the Power to investigate into any complaint regarding any default made by the
Contractor or subcontractor in regard to such provision.
k) No party shall be represented by a legal practitioner in any investigation or inquiry under this Clause,
unless Architect/Employer agree otherwise.
Payment of Wages
i) Wages due to every worker shall be paid to him direct. All wages should by paid in current coins or
currency or in both.
ii) Wages of every worker employed on the Contract shall be paid where the wage period is one week,
within THREE days from the end of the Wage period, and in any other case before the expiry of the 7th
day or 10th day from the end of the wage period according as the number of workers does not exceed
1,000 or exceeds
NOTE: The term "Working Day" means a day on which the work on which the labour is employed is in progress.
Register of Wages, etc.:
i) A Register of Wages cum Muster Roll in the Form appended to these regulations shall be
maintained and kept at the Work Site or as near to it as possible.
ii) A wage slip in the form appended to these regulations shall be issued to every worker employed
by the Contractor at least a day prior to disbursement of wages.
SPECIFICATIONSOFMATERIALS CONTENTS
GeneralTechnicalSpecification-General-I M-51.Marble slab
StandardTechnicalSpecifications M-52.Granitestone slab
M-1.Water M-53.P.V.C.Flooring
M-2. Lime M-54.Facingtiles
M-3.Cement M-55.Whiteglazed tiles
M-4.White Cement M-56.Galvanisedironpipesandfittings.
M-5.ColouredCement M-57.Bidcocksandstopcock
M-6.Sand M-58.Gunmetalwheel valve
M-7.Stonedust M-59.WhiteglazedporcelainwashBasin
M-8.StoneGrit M-60.Europeantypewatercloset
M-9.Cinder M-61.Orissatypewatercloset
M-10.Limemortar M-62.IndianTypewatercloset
M-11.CementMortar M-63.Glazedearthenware sink
M-12.StonecoarseforNominalMixConcrete M-
64.Glazedearthenwarelippedtypeflatbackurinal/
Corner type urinal
M-13.BlacktraporequivalentHardstone M-65.Lowlevelenamelflushing tank
CoarseaggregatefordesignMixConcrete
M-14.Brickbatsaggregates M-66.Castironflushing cistern
M-15.Bricks M-67.Flush cock
M-16.Stone M-68.Castironpipesandfittings
M-17.LateriteStone M-69.Nahni trap
M-18.MildSteel Bars M-70.Gullytrap
M-19.Highyieldstrengthsteeldeformed bars M-71.Glazedstonewarepipeandfittings.
M-20.Hightensilesteelwires M-72.Wallpeg rail
M-21.Mildsteelbindingwires M-73.G.I.Waterspout
M-22.Structuralsteel M-74.Asbestoscementpipe(A.C.Pipe)
M-23.Galvanisedironsheets M-75.Croydonball valve
M-24.G.I.Valleysguttersridges M-76.Bitumenfeltforwaterproofinganddamp
M-25.Manglorepatternrooftiles M-77.SelectedEarth
M-26.Shuttering M-78.Barbed Wire.
M-27.Expansionjoints.Premouldedfiller M-79.TensileStructureFabric
M-28.Expansionjointscopperstrips&holdfasts DETAILEDSPECIFICATIONS
M-29.TeakWood Section-4Excavation
M-29-A.NonTeakwood Section-5PlainR.C.C Work
M-30.Woodenflushdoorshutters(SolidCore) Section-6Masonrywork
M-31.Aluminumdoorswindows.holdfasts Section-7RubbleMasonrywork
M-32.Rollingshutter Section-9.Centeringandformwork
M-33.Collapsiblesteelgate Section-10.WoodworkDoorsWindows
M-34.Weldedsteelwirefabric Section-11.Steelshutters,Windows,Ventilators
M-35.Expandedmetalsheets Section-12.Lab.forfixingfixtures&fastenings
M-36.MildSteel wire Section-13.Glazing
M-37.plywood Section-14.Paving&FloorFinishes
M-38.Glass Section-15.RoofCovering
M-39.Acrylicsheets Section-16.Ceiling&Lining
M-40.Particleboard Section-17.Plasteringandpainting
M-41.Expandedpolystyreneofframedstopper Section-18.WhitewashingandDistempering
M-42.Resinbondedfiberglass Section-19.Paintingandpolishing
M-43.Fixturesandfastenings Section-20.DemolitionandDismantling
M-44.Paints Section-21.RepairstoBuildings
M-45.FrenchPolish Section-22.Miscellaneousbuildings
M-46.Marblechipsformarblemosaicterrazzo Section-
23.Watersupply,plumbingandsanitaryfittings
M-47.Flooringtiles Section-24.Drainage&Sewerage
M-48.Roughkotahstone AnnexureIEquivalentplainareafor uneven
surfacesforpainting
M-49.Polishedkotahstone AnnexureIIScheduleofFixtures&Fastenings
fordoors,windows,ventilators,Wardrobesandcupbo
M-50.Dholpurstones
GENERAL TECHNICAL SPECIFICATIONS FOR BUILDING WORK
In the specifications, "as directed"/"Approved" shall be taken to mean, "as
directed"/approved" by the Engineer-in-charge.
Wherever a reference to any Indian Standard appears in the specifications, it
shall betaken to mean as areferenceto the latest edition ofthesamein forceon the
date of agreement.
In "ModeofMeasurement"inthespecificationswherever adisputearises inthe
absence of specific mention of a particular point or aspect, the provisions on
these particular points, or aspects in the relevant Indian Standards shall be
Allmeasurementsandcomputations,unlessotherwisespecified,shallbecarried out
nearest to the following limits:
(i) Length, widthanddepth(height) ------- --0.01 Meter.
(ii) Areas --- --0.01Sq. Mt.
(iii) Cubic Contents ---- --0.01 Cu.Mt.
The distance, which constitutes lead, shall be determined along the shortest
practical route and not necessarily the route actually taken. The decision of the
Engineer-in-charge in this regard shall be taken as final.
Wherenoleadisspecified,itshallmean"all leads"
Liftshallbemeasuredfromplinth level.
Upto "floor two level" means actual height of floor (Maxi.4 M.) upto 3 Mt.
above plinth level.
Definite particulars covered in the items of work, though not mentioned or
elucidated in it, specifications shall be deemed to be included there in.
Reference to specifications of materials as made in the detailed specification of
the items of work is in the form of a designation containing the number of the
specification of the material and prefix 'M' e.g. 'M-5'.
Approval to the samples of various materials given by the Engineer-in-charge
shall not absolve the contractor from the responsibility of replacing defective
material brought on site or materials used in the work found defective at a later
The contract rate of the item of work shall be for the work completed in all
No collection of materials shall be made before it is got approved from the
Engineer-in-charge.
Collection of approved materials shall be done at site of work in a systematic
manner. Materials shall be done at site of work in a systematic manner.
Materials shall be stored in such a manner as to prevent damage, deteriorationor
intrusion of foreign matter and to-ensure the preservation of their quality and
fitness for the work.
Materials, if and when rejected bythe Engineer-in-charge, shall be immediately
removed from the site of work.
NO materials shall be stored prior to, duringand after execution shall be kept in
sufficient numbers and in good working condition on the site of the work.
Allworksshallbecarriedoutinaworkmanlikemannersperthebesttechniques for the
particular item.
Alltools,templates,machineryandequipmentforcorrectexecutionofthework
aswellasforcheckinglines,levels,alignmentoftheworksduringexecution
shall be kept in sufficient numbers and in good working condition on the site of the work.
The mode, procedure and manner of execution shall be such that it does not
cause damage or over loading of the various components of the structure during
execution or after completion of the structure.
Special modes of construction not adopted in general Engineering practice, if
proposed to be adopted by the Contractor, shall be considered only if the
contractor provides satisfactoryevidence that such special mode of construction
is safe, sound and helps in speedy construction and completion of work to the
required strength and quality. Acceptance of the same by the Engineer-in-
Charge shall not, however, absolve the contractor of the responsibility of any
adverse effects and consequences of adopting the same in the course of
execution of completion of the work.
All installations pertaining to water supply and fixtures thereof as well as
drainage lines and sanitary fittings shall be deemed to be completed only after
giving satisfactory tests by the Contractor.
The contractor shall be responsible for observing the rules and regulations
imposed under "Minor Minerals Act", and such other laws and rules prescribed
by Government from time to time.
All necessary safety measures and precaution (including those laid down in the
various relevant Indian Standards) shall be taken to ensure the safety of men,
materials and machinery on the works as also of the work itself.
The testing charges of all materials shall be borne by the Contractor unless
recovery at one percent towards testing charges is separately made.
Approval to any of the executed items for the work does not in any way relieve
thecontractorofhisresponsibilityforthecorrectness,soundnessandstrengthof the
structure as per the drawings and specification.
SPECIFICATIONS OF MATERIALS
Water shall not be salty or brackish and shall be clean, reasonably clear and free objectionable quantities of silt and traces
of oil and injurious alkalis, salts, organic matter and other deleterious material which will either weaken the mortar or
concreteor cause efflorescence or attack the steel in R.C.C Container for transport, storage and handling of water shall be
clean. Water shall conform to the standards specified in I.S.456-1978.
If required by the Engineer-in-charge it shall be tested by comparison with distilled water. Comparison shall be made by
means of standard cement tests for soundness,time of setting and mortar strength as specified in I.S.269-1976. Any
indication of unsoundness, change in time of setting by30 minutes or more or decrease of more than 10 per cent in strength
of mortar prepared with water sample when compared with the results obtained with mortar prepared with distilled water
shall be sufficient cause for rejection of water under test.
Waterforcuringmortar,concreteormasonryshouldnotbetooacidicortooalkaline. It shall be free of elements which significantly
affect the hydration reaction or otherwise interfere with the hardening of concrete during curing or those which produce
objectionable stains or other unsightly deposits on concrete or mortar surfaces.
Hardandbitter watershall notbe usedfor curing.
Portablewater will begenerallyfound suitableforcuringmortar or concrete.
Limeshall behydrauliclimeas per I.S. 712-1973. Necessarytest shall be carriedout as per I.S. 6932 (Parts I to X),
Thefollowing fieldtests forlimesaretobecarried out:
A very rough idea can be formed about the type of lime by its visual examination i.e.fat lime bears pure white colour, lime
in form of porous lumps of dirty while colour indicates quick lime, and solid lumps are the unburnt lime stone.
Acid tests for determining the carbonate content in lime, Excessive amount of impurities and rough determination of class
Storage shall comply with I.S. 712-1973. The slaked lime, if stored, shall be kept ina weatherproofanddamp-
proofshedwithimperviousfloorandsidestoprotectitagainst rain, moisture, weather and extraneous materials mixing with it.
All lime that has been damaged in any way shall be rejected and all rejected materials shall be removed from site of work.
Field testing shall be done according to I.S. 1624-1974 to show theacceptability of materials.
CementshallbeordinaryPortlandslagcementasperI.S.269-1976orPortlandslag cement as per I.S. 455-1976.
M-4. WhiteCement:
ThewhitecementshallconformtoI.S.80412-E1978.
M-5. Coloured Cement:
ColouredcementshallbewithwhiteorgrayPortlandcementasspecifiedintheitem of the work.
The pigments used for coloured cement shall be of approved quality and shall not exceed 10% of cement used in the Mix.
The mixture of pigment shall be properly groundedtohaveauniformcolourandshade.Thepigmentsshallhavesuchproperties to
provide for durability under exposure to sunlight and weather.
Thepigmentshallhavethepropertysuchthatitisneitherbythecementnor detrimental to it.
Sand shall be natural sand, clean, well graded, hard strong durable and gritty particle free from injurious amounts of dust
clay, kankar nodules, soft or flaky particles shale,
alkali,saltsorganicmatter,loam,micaoranotherdeleterioussubstanceandshallbegot approved from the Engineer-in-charge. The
sand shall not contain more than 8 percent of silt as determined by field test. If necessary the sand shall be washed to make
CoarseSand:Thefinenessmodulusofcoarsesandshallnotbelessthan2.5andshall not exceed
Thesieveanalysis of coarseshall be as under:
I.S.Sieve Percentage by I.S.Sieve Percentage by
Designation PassingSieve Designation PassingSieve
FineSand:Thefinenessmodulusshallnotexceed1.0.Thesieveanalysisoffine sandshall be as under:
I.S.Sieve Percentage by I.S.Sieve Percentage by
Designation PassingSieve Designation PassingSieve
M-7.Stone Dust :
This shall be obtained from crushing hard black trap or equivalent. It shall not contain more than 8% of silt as determined
by field test with measuring cylinder. The methodof determining silt contents by field test is given as under:
A sample of stone dust to be tested shall be placed without drying in 200 mm. measuring cylinder. The quantity of the
sample shall be such that it fills the cylinder upto100 mm. mark. The clean water shall be added upto 150 mm. mark. The
mixture shall be stiffed vigorously and the content allowed to settle for 3 hours.
The height of silt visible as settled layer above the stone dust shall be expressed as percentage of the height of the stone dust
below. The stone dust containing more than 8% silt shall be washed so as lowering the silt content within the allowable
Thefinenessmodulus of stone dustshall notbe lessthan 1.80.
M-8.Stone Grit:
Grit shall consist of crushed or broken stone and be hard strong, dense, durable, clean, of proper gradation and free from
skin or coating likely to prevent adhesion of mortar Grit shall generally be cubical in shape and as far as possible flaky
elongated pieces shall be avoided. It shall generally comply with the provisions of I.S. 383-1970. Unless special stone of
particular quarries is mentioned, grit shall be obtained from the best black trap or equivalent hard stone as approved by the
Engineer-in-charge. The grit shall have no deleterious reaction with cement.
Thegritshall conformtothe followinggradationas persieve analysis:
I.S.Sieve Percentage by I.S.Sieve Percentage by
Designation throughSieve Designation throughSieve
The crushing strength of grit will be such as to allow the concrete in which it is used to used to built up the specified
strength of concrete.
The necessary tests for grit shall carried out as per the requirements of I.S.2386(Parts I to VII) 1963, as per instructions of
the Engineer-in-charge. The necessity of test will be decided by the Engineer-in-charge. The necessity of test will be
decided by the Engineer-in-charge.
Cinder is well burnt furnace residue, which has been fused or sintered into lumps of varying sizes.
Cinder aggregates shall be well burnt furnace residue obtained from furnace using coal fuel only. it shall be sound clean
free from clay, dirt ash or other deleterious matter.
Theaveragegradingforcinderaggregates shallbeasmentionedbelow:
I.S.Sieve Percentage I.S.Sieve Percentage
Designation passing Designation passing
M-10.LimeMortar:
LimeshallconfirmtospecificationM-2 Watershallconformtospecification M-1.
Sand:SandShallconformtospecificationM-6.
ProportionofMix:10.2.1.Mortarshallconsistofsuchproportionsofslakedlimeand sandas maybespecifiedintheitem. Theslaked
limeand sand bemeasured byvolume.
PreparationofMortar:
Lime mortar shall be prepared bywet process as per I.S. 1625-1971. Power driven mill shall be used for preparation of lime
mortar. The slaked lime shall be placed in the mill in an even layerand groundforthe180 revolutions with asufficient water.
Watershall be added as required during grinding (care being taken not to add more water) that will bring the mixed material
to a consistency of stiff paste. Thoroughly wetted sand shall then be added evenly and the mixture ground for another
Storage : 10.4.1 Mortar shall always be kept damp, protected form sum and rain till used up , covering it by tarpaulin or
Use : 10.5.1 All mortar shall be used as soon as possible after grinding it should beused on the day on which it is prepared.
But in no case mortar made earlier than 36 hours shall be permitted for use.
M-11.CementMortar:
Water shall conform to specificationM –1. Cement : Cement shall conform to specification M-
Sand:SandshallconformtoM-6
Preparation of Mix :11.2.1 Cement and shall be mixed to specified proportion, sand being measured by measuring boxes.
The proportion of cement will be by volume on the basic of 50 kg / Bag of cement being equal to 0.0342 Cu.m. The mortar
may be hand mixed or machine mixed as directed.
Preparation of mortar : 11.3.1 In hand mixed mortar cement and sand in the specified proportions shall be thoroughly mixed
dry on a clean impervious platform by turning over at least 3 times or more till a homogenous mixture of uniform colour is
obtained., Mixing platform shall be so arranged that no delirious extraneous material shall get
mixedwithmortarormortarshallbegraduallyaddedandthoroughlymixedtoforma
stiff plastic mass of uniform colour so that each particle of sand shall be completely covered with a film of wet cement. The
water cement ratio shall beadopted as directed.
The mortar so prepared shall be used within 30 minutes of adding water Only such quantity of mortar shall be prepared as
can be used within 30 minutes.
M-12StoneCoarseAggregateFornominalMixConcrete:
Coarse aggregate shall be machine crushed stone of black trap or equivalent and be hard, strong m dense, durable clean
and free form skin and coating likely to prevent proper adhesion for mortar.
The aggregate shall generally be cubical in shape. Unless special stones of particular quarries are mentioned aggregates
shall be machine crushed from the best black trap or equivalent hard stone as approved. Aggregate shall have no deleterious
reaction with cement. The size of the coarse aggregate for plain cement concrete and ordinary reinforced cement concrete
shall generally be as per the table given below. However in case of reinforced cement concrete the maximum limit may be
restricted to 6 mm. less than the minimum lateral clear distance between bars or 6 mm. less than the cover, Whichever is
l.s.sieve percentage passing for single I.S.Sieve Percentagepassingforsingle
sizedaggregatesofnominal Designati aggregates of Nominal size
NOTE: This percentage may be carried somewhat by Engineer-in-charge when considered necessary for obtaining better
density and strength of concrete.
The grading test shall be taken in the beginning and at the change of source ofmaterials. The necessary test indicated in I.S.
383-1970 and I.S. 456-1978 shall have to be carried out to ensure the acceptability. The aggregates shall be stores
separately and handled in such a manner as to prevent the intermixing of different aggregates. If the aggregates. are covered
with dust, theyshall be washed with water to make them clean.
M-13.BlackTraporEquivalentHardStoneCoarse:
Aggregate For Design Mix Concrete: Coarse aggregate shall be of machine crushed stoneofblack trap orequivalent
hardstone and behard strongdense, durableclean and free skin and coating likely to prevent proper adhesion of mortar.
The aggregates shall generally be cubical in shape. Unless special stones of particular quarries are mentioned, aggregates
shall be machine crushed from the best, black trapor equivalent hard stones as approved. Aggregate shall have no
deleterious reactionwith cement.
The necessary tests indicated in I.S. 383-1970 and I.S. 456-1978 shall have to becarried out to ensure the acceptability of
Ifaggregateiscoveredwithdustitshallbewashedwithwatertomakeitclean.
M-14.BrickBats Aggregate:
Brick bat aggregate shall be broken from well burnt or slightly over burnt and dies brick. It shall be homogeneous in texture
roughly cubical shape, clean and free fromdirt of any other foreign material. The brick bats shall be of 40 mm. to 50 mm.
size unless otherwise specified in the item. The unburnt or over burnt brick bats shall not be allowed.
Thebrick bats shall be measured byvolumebysuitableboxes or asdirected.
The bricks shall be hand or machine moulded and made from suitable soils and kiln- burnt. They shall be free from crack
and nodules of free lime. They shall have smooth rectangularfaceswithsharpcorersandshallbeofuniformcolour. The bricks
shall be molded with a frog of 100 mm. X 40 mm. and 10 mm. to 20 mm. deep on one of its flat sides. The bricks shall not
break when thrown on the groundfrom a height of 600 mm.
Thesizeof modular bricks shall be 190 mm. X 90 mm. X 90 mm.
Thesizeoftheconventionalbricksshallbeasunder:(9”x4 ”x2 ”)225x110x75 mm.
Only bricks of one standard size shall be used on one work. The following tolerances
shallbepermittedintheconventionalsizeadoptedinaparticularwork. Length : 1.8 (3.0 mm.) Width : 1/6 “ (1.51 mm.) Height :
The crushing strength of the bricks shall not be less than 35 Kg./Sq.Cm. The average water abscriptics shall not be more
than 20 prevent by weight. Necessary tests for crushing strength and water absorption etc. shall be carried out as per I.S.
.3493 (Part-I to IV)
The stone shall be of the specified variety such as Granite/Trap Stone. Quartzite or any other type of good hard stones. The
stones shall be obtained only from the approved quarry and shall be hard, sound, durable and free from defects like cavities,
cracks,sand holes, flaws, injurious veins, patches of loose or soft materials etc. and weathered portions and other structural
defects or imperfections tending to affect their soundness and strength. The stone with round surface shall not be used. The
percentage of water absorptionshallnotbemorethat5%ofdryweight,Whentestedinaccordancewith
I.S. 1134-1974. The minimum crushing strength of the stone shall be 200 kg./Sq. Cm. unless otherwise specified.
The samples of the stone to be used shall be got approved before the work is started. The Khanki facing stone shall be
dressed by chisel as specified in the item for khanki facinginrequiredshapeandsize.Thefaceofstoneshallbesodressedthatthe
bushing on the exposed ace shallnot project by more than 40 mm. fromthe generalwall surface and on face to be plastered
it shall not project by more than 19 mm. nor shall it have depressions more than 10 mm. from the average wall surface.
M-17.Laterite Stone:
Laterite stone shall be obtained from the approved quarry. It shall be compacted in texture, sound, durable and free from
soft patches. It shall have a minimum crushing strength of 100 K.G/S.q. Cm. in its dry condition. It shall not absorb water
more than 20% of its own weight, When immersed for 24 hours in water. After quarrying thestone shall be allowed to
weather for some time before using in work.
The stone shall be dressed into regular rectangular blocks so that all faces arefree from waviness and unevenness, edges true
Thosetypesofstoneinwhichwhiteclayoccur,shouldnotbeused. special corner stones shall be
provided where so directed.
M-18.MildSteelBars:
Mild steel bars reinforcement for R.C.C work shall conform toI.S. 432(Part-II) 1966and shall be tested quality. It shall also
comply with relevant part of I.S. 456-1978.
Allthereinforcementshallbecleanandfreefromdirt,paint,grease,milescaleorloose or thick rust at the time of placing.
Forthepurposeofpayment,thebarshallbemeasuredcorrectupto100mm.length and weight payable
worked out at the rate specified below :
1. 6mm.x 0.22 Kg./Rmt 8. 20mm.2.47 Kg./Rmt
2. 8mm. x0.39 Kg./Rmt. 9. 22mm.2.98 Kg./Rmt
3. 10mm x0.62 Kg./Rmt 10. 25mm. 3.85 Kg./Rmt
4. 12mm x0.89 Kg./Rmt 11. 28mm. 4.83 Kg./Rmt
5. 14mm x1.21 Kg./Rmt 12. 32mm. 6.31 Kg./Rmt
6. 16mm x1.58 Kg./Rmt 13. 36mm.7.99 Kg./Rmt
7. 18mm x3.00 Kg./Rmt 14. 40mm9.86 Kg./Rmt.
M-19.HighyieldStrengthSteelDeformedBars:
High yield strength steel deformed bars are either cold twisted or hot rolled, shall conform to I.S. 1739-1966 and I.S.1139-
1966 respectively.
OtherprovisionandrequirementsshallconformtospecificationNO.M-18forMild steel bars.
M-20.HighTensileSteelWire:
ThehightensilewiresfortheuseinprestressedconcreteworkshallconformtoI.S. 2090-1962.
The tensile strength of the high tensile steel bars shall be as specified in the item. In
absenceofthegivenstrength,theminimumstrengthshallbetakenasperpara6.1of
I.S.1785-1962.Testingshallbedoneasper I.S. requirements.
The high tensile steel shall be free from loose mill scale, rust oil, grease, or anyother harmful matter, Cleaning of steel
bars may be carried out by immersion in solvent solution, wire brushing or passing through a pressure box containing
carborundum. Thehightensilewireshallbeobtainedfrommanufacturesincoilhavingdiameternot less than 350 times the
diameter of wire itself so that wire springs back straight back straight on being uncoiled.
M-21.MildSteelBindingWire:
Themildsteelwireshallbeof1.63mmor1.22mm.(16or18gauge)diameterand shall conform to I.S. 280-197.
The use of black wire be permitted for binding reinforcement bars. It shall be free from rust, Oil paint, grease, looser mile
scale or any other undesirable coating which may prevent adhesion of cement mortar.
M-22.StructuralSteel:
All structural steel shall conform to I.S. 226-1965. The steel shall be free from the defects mentioned in I.S. 226-1975 and
shall have a smooth finish. The material shall have a smooth finish. The material shall be free from loose mile scale, rust
pits or other defects affecting the strength and durability. Rivet bars shall conform to I.S. 1148-
When the steel is supplied by the Contractor test certificates of the manufactures shall be obtained according to I.S. 226-
1975 and other relevant Indian Standards.
M-23.GalvanisedIronSheets:
Thegalvanisedironsheetsshallbeplainorcorrugatedsheetsofspecifiedinitem.The
G.I. sheets shall conform it I.S. 217-1977. The sheets shall be undamaged in carriage and handling either by rubbing off of
zinc coating or otherwise they shall have clean and bright surface and shall be as directed as per site condition.
ThelengthandwidthofG.I.sheetshallbe as directedaspersite condition.
M-24G.I Valleysgutterridges:
The G.I.ridges and hips shall be of plain galvanised sheets class-3 of the thickness as specified in item. These shall be
mm. in width and properly bent up to shape without damage to the sheets in process of bending.
Valleys gutters and flashings shall also be galvanised sheet of thickness as specified in item. Valleys shall be 900 mm.
Wide overall and flashing shall be 380 mm. wide overall. They shall be bent to the required shape without damage to the
sheet in the process of bending.
M-25.ManglorePatternRoofTiles:
The Mangalore pattern tiles shall conform to I.S. 654-1972 for Class AA or Class “A”
typeasspecifiedinitem.Samplesofthetilestobeprovidedshallbegotapprovedfrom the Engineer-in-charge. Necessary tests shall
be carried out as directed.
M-26.Shuttering:
The shuttering shall be either of widen planking of 30 mm. minimum thickness with or without steel lining roof steel plates
stiffened by steel angles. Theshuttering shall be supported on battens and beams and props of vertical ballies properly cross
braced together so as to make the centering rigid. In places of bully props, brick pillar of adequate section built in mud
mortar may be used.
The form work shall be sufficiently strong and shall have camber, so that it assumes correct shape after deposition of the
concrete and shall be able to resist forces causedby vibration of live load of men working over it and other incidental loads
associated withit.Theshutteringshallhavesmoothandevensurfaceanditsjointsshallnotpermit leakage of cement grout.
If at any stag of work during or after placing concrete in the structure, the form work sags or bulges out beyond the required
shape ofthe structure, the concrete shall be removed and work redone with fresh concrete and adequately rigid form work.
The complete from work shall be got inspected by and got approved from the engineer-in- charge, before the reinforcement
bars are placed in position.
The props shall consist of bullies having 100 mm. minimum diameter measured at mix length and 80 mm, at thin end and
shall be placed as per design requirement. These shall rest squarely on wooden sole plates 40 mm. thick and minimum
bearing area if 0- 10 sq. m. laid on sufficiently hard base.
Double wedges shallfurther be provided between the sole plate and the wooden props so as to facilitate tightening and
easing of shuttering without jerking the concrete.
The timber used in shuttering shall not be so dry as to absorb water from concrete and swell or bulge nor so green or wet as
to shrink after erection. The timber shall be properly sawn and planed on the sides and surface coming in contact with
concrete. Wooden from work with metal sheet liningor steel plates stiffened bysteel anglesshall be permitted.
As far as practicable, clamps shall be used to hold the forms together and use of nails and spikes avoided.
The surface of timber shutteringthat would come in contact with concrete shall be well wetted and coated with soap
solutions before the concreting is done. Alternatively coat of raw linseed oil or oil of approved manufacturer may be
applied in place of soap solution. In case of steel shuttering either soap solution or raw linseed oil shall be applied after
thoroughly cleaning the surface. Under no circumstances black or burntoil shall be permitted.
The shuttering for beams and slabs shall have camber of 4 mm. per meter (1 to 250) or as directed by the Engineer-in-
charge so as to offset the subsequent deflection. For cantilevers, The camber at free end shall be 1/50 of the projected length
or as directed by the Engineer-in-charge.
M-27.Expansionjoints-Premouldedfilter:
The item provides for expansion joints in R.C.C frame structures for internal joints, as well as exposed joints, with the use
of premoulded bituminous joint filler.
Premoulded bituminous joint filler, i.e. performed strip of expansion joint filler shallnot get deformed or broken by twisting,
bending or other handling when exposed to atmospheric condition. Pieces of joint filler that lave been damaged shall be
Thickness of the pre-moulded joint filler shall otherwise specified.
Premouldedbituminousjointfillershallconformto I.S.1838-1961.
M-28Expansion joints-Copperstrips &holdfasts :
The item provide for expansion joints in R.C.C frame structure for internal joints as well as for exposed joints with the use
of necessary copper strip and hold fasts.
Copper sheet shall be of 1.25 mm. thick and of 1.25 mm. width when the ‘U’ shape in middle. Copper strips shall have hold
fast of 3 mm. diameter copper rod fixed to the plate soldered on strip at intervals of about 30 cm. or as shown in the
drawing or as directed. The width of each flange (horizontal side) of the copper plate to be embedded in the concrete work
shall be 25 mm. Depth of ‘U’ to be provide in the expansion joint, in the copper plate shall be of 25 mm.
M-29.Teakwood :
The teak wood shall be of good quality as required for the item to be executed. When the kind of wood is not specifically
mentioned, good Indian teak wood as approved shall be used.
Teak wood shall generally be free from large, loose, dead or cluster knots, flaws, shakes, warps, twists bends or any other
defects. It shall generally be uniform in substance and of straight fibres as far as possible. It shall be free from rot, decay,
harmful fungi and other defects of harmful nature which will affect the strength durability of its usefulness for the purpose
for which it is required. The colour shall be uniform as far as possible. Any effort like painting, using any adhesive orresins
materials made to hide the defects shall render the pieces liable to rejection by the Engineer-in-charge.
All scantlings, planks etc. shall be sawn in straight lines and planes in the direction of grains and of uniform thickness.
The tolerances in the dimensions shall be allowed at the rate of 1.5 m.m. per face to be planed.
First class teak wood : 29.5.1. First class teak wood shall have no individual hard and sound knots, more than 6 sq. cm.
size and the aggregate area of such knots shall not be more than 1% of area of piece. The timber shall be closed grained.
Second Class Teak Wood : 29.6.1. No individual hard and sound knots shall be more than 15 Sq. cms. in size and
aggregate area of such knots shall not-exceed 2% of the area of piece.
M-29.(A)Non-teakwood:
The non teak-wood shall be chemically treated, seasoned as per IS Specifications andof good quality. The type of wood
shall be got approved before collecting the same on site. Fabrication of wooden members shall be started only after
For this purpose wood of Bio, Kalali, Siras, Behda, Jamun, Sisoo will be used for door frameswhereas onlyKalali,Siras,
Halda,Kalam etc.willbepermittedforshuttersafter proper seasoning and chemical treatment.
The non-teak wood shall be free from large, loose, dead of cluster knots, flows, shakes warps bends or any other defect. It
shall be uniform in substance and of straight fibers as far as possible. It shall be free rots, decay harmful fungi and other
defects of nature which effect the strength, durability or its usefulness for the purpose for which it is required. The colour of
wood shall be uniform as far as possible. The scantlings planks etc. shall be sawn in straight lines and planes in the
direction of grain and uniform thickness.
The department will use the Agency to produce certificate from forest Department in event of Disputes and the decision of
the Department shall be final and binding to the contractor.
Thetolerancein thedimension shall beallowed as1.5 mm.perfacetobe planed.
M-30.Woodenflushdoorshutters(solidcore):
The solid core type flush door shutters shall be decorative or non-decorative type as specified in the drawing. The size and
thickness of the shutter shall be as specified in drawings or as directed. The timber species for core shall be used as per I.S.
2202- (Part-I) 1980. The timber shall be free from decay and insect attack. Knots and knot holes less than half the width of
cross-section of the members in which they occur may be permitted. Pitch pockets, Pitch streaks and harmless pin holes
shall be permissible except in the exposed edges of the core members. The commercial plywood, cross- bands shall
conform to I.S. 303-1275.
The face panel of the shutters shall be formed by gluing by the hot press process on both faces of the core with either
plywood or cross-bands and face veneers. The hopping rebating opening of glazing, Venetian etc. shall be provided if
specified in the drawing.
Alledgesofthedoorshuttersshallbesquare.The shuttersshallbefreetwist orwarpin its plane. Both faces of the shutters shall be
sand papered to smooth even texture.
Theshutters shallbe tested for
(1) End immersion test : The test shall be carried out as per I.S. 2202 (part-I)1980.
There shall be no delamination at the end of the test.
(2) Knife test: The face panel when tested in accordance with I.S. 1659-1979 shall
(3) Glue adhesion Test: The flush door shall be tested for glue adhesive test in
accordance with I.S. 2202 (Part-I) 1980. The shutters shall be considered to havepassed
the test if no delamination occurs in the glue lines in the plywood and if no single
declamination more than 80 mm. in length and more than 3 mm. in depth has occurred
in the assembly glue lines between the plywood face and the style and rail.
Delaminationatthecornershallbemeasuredcontinuouslyaroundthecorner.
Delamination at the knots, knots holes and other permissible wood defects shall not be considered in assessing the sample.
Thetoleranceinsizeofsolidcoretypeflushdoorshallbeasunder: In Normal thickness + 1.2 mm. In
Normal height + 3 mm.
Thethickoftheshutters shallbeuniformthroughoutwithapermissiblevariationofnot more than 0.8 mm. when measured at any
M-31.Aluminumdoors,Windows,Ventilators.
Aluminumalloyusedinthemanufactureofextrudedwindowsectionsshallconformto
I.S.designationHEA-WPofI.S.:733-1975andalsotoI.S.DesignationWVG-WPof
I.S.1285-1975.TheSectionshallbeasspecifiedinthedrawinganddesign.The fabrication shall be done as directed.
The hinges shall be cast or extruded aluminum hinges of same type as in windows but of large size.
The hinges shall normal be of 50 mm. projecting type. Non-projecting type of hinges may also be used if directed. The
handles of door shall be of specified in the drawing and design. The fabrication shall be done as directed.
M-32.Rolling Shutters:
The rolling shutter shall conform to I.S. 6248-1979. Rolling shutters shall be suppliedof specified type with accessories.
The size of the rolling shutters shall be specified in the drawings. The shutters shall be constructed with interlocking lath
sections formed from cold rolled steel strips not less than 0.9 mm. thick and 80 mm. wide for shutters upto 3.5 mm., width
notless than 1.25 mm. thick and 80 mm. wide for shutters 3.5 mm in width and above unless otherwise specified.
Guidechannelsshallbeofmildsteeldeepchannelsectionandofrolledpressedorbuilt
up(fabricated)jointuresconstruction.Thethicknessofsheetusedshallnotbelessthan
Hoodcoversshall bemadeofM.S. Sheets not less that 0.92 mm. thickness For shutters having width 3.5 Meter and above the
thickness of M.S. Sheet for the hood cover shall be not less than 1.25 mm.
The spring shall be of best quality and shall be manufactured from tested high tensile springsteel wire orstrip
ofadequatestrength to balance theshutters in all position. The spring pipe shaft etc. shall be supported on strong M.S. or
malleable C.I. brackets. The brackets shall be fixed on or under the lintel as specified with raw plugs and screws bolts etc.
The rolling shutters shall be of self rolling type up to 8 Sq.m. clear area without ball bearing and p to 12 Sq.m. clear area
with ball bearing. If the rolling shutters are larger, then gear operated type shutters shall be used.
The locking arrangement shall be provided at the bottom of shutter at both ends. The shutters shall be opened from outside.
The shutters shall be completed with door suspension shafts, locking arrangements pulling hooks, handles and other
M-33.CollapsibleSteelGate:
The collapsible steel gate shall be in one or two leaves and size as per approved drawings or as specified. The gate, shall be
fabricated from best- quality mild steel channels, flats etc. Either steel pulleys or ball bearingshall be provided in
everydouble channel.Unlessotherwisespecifiedtheparticularsofcollapsiblegateshallbeasunder
(a) Pickets : These shall be of 20 mm. M.S., channels of heavy sections unless
otherwise shown on drawings. The distance center to center of pickets shall be
12 cms. with an opening of 10 Cms.
(b) PivotedM.S. flatsshallbe20 mmx6 mm.
(c) Topandbottom guidesshallbefromteeorflatiron ofapproved size.
(d) The fittings like stoppers, fixing hold fasts, locking cleats, brass handles andcast
iron rollers shall be of approved design and size.
M-34.WeldedSteelWire Fabric:
Welded steel wire fabric for general purpose shall be manufactures from cold drawn steel wire“as drawn”orgalvanised steel
conformingto I.S. 226-1975 with longitudinal and transverse wire securw4ely connected at every intersection by a process
of electrical resistance welding and conforming to I.S. 4948-1974. It shall be fabricated and finished in workmanlike
manner and shall be free from injurious defects and shall be rust proof. The type of mesh shall be oblong or square as
directed. The mesh sizes and size of wire for square as well as oblong welded steel wire fabric shall be as directed. The steel
wire fabric in panels shall be in one whole piece in each panel as far as stock size permit.
M-35.ExpandedMetalSheets:
The expanded metal sheets shall be free from flaws, joints, broken strands, laminations and other harmful surface Expanded
metal steel sheet shall conform to I.S. 412-1975,
Exceptthatblanksheetsneednotbewithguaranteedmechanicalproperties.Thesizeof the diamond mesh of expended metal and
dimensions of strands (width and thickness) shallbeasspecified.Thetoleranceinnominalweight ofexpendedmetalsheetsshallbe
of + 10 percent.
Expanded metal in panels shall be in one whole piece panel each as far as stock size permit. The expanded metal sheets
shall be coated with suitable protective coating to prevent corrosion.
M-36.Mild SteelWire(Wire) :
Mild steel wire may be galvanised, as indicated All finished steel wire shall be well cleanlydrawn to the dimensions and
size of wireas specified in item. The wire shall be sound, free from splits, surface flaws, rough jagged and imperfect edges
and other harmful surface defects and shall conform to I.S. 280-1978.
The plywoodfor general purpose shall conform I.S. 303-1975.Plywood is made by cementing together thin boards or sheets
of wood into panels. There are always an odd number of layers 3,5,7,9 plyetc. The plies are placed so that grain of each
layer is right angle to the grain in the adjacent layer.
The Chief advantages of plywood over a signal board of the same thickness is the more uniform strength of the plywood,
along the length and width of the plywood and grater resistance to cracking and splitting with change in moisture content.
Usually synthetic resins are used for gluing, pherolic resins are usually cured in a hot press which compresses and
simultaneously heats the plies between hot plates which maintain a temperature of 90 degrees C. to 140 degrees C. and a
pressure of 11 to 14 kg/sq.cm. on the wood. The time of heating may be anything from 2 to 69 minutes depending
When water glue are used , the wood absorbs so much water that the finished plywood must be dried carefully. When
synthetic resins are used as adhesive finished by plywood must be exposed to an atmosphere of controlled humidity until
the proper amount of moisture has been absorbed.
Accordingto I.S. 303-1975 the plywood for general purpose shall be of three grades BWR, WWR and CWR, depending
upon the adhesives used for bonding and veneers, and it will be further classified into six types namelyAA,AB,AC,BB,BC
and CC based on thequalityofthetwo faces, each facebeingof threekinds namely, A,Band C, After pressing, the finished
plywood should be reconditioned to a moisturecontent not less than 8 percent and not more than 16 percent.
Thicknessofplywood Boards:
Board Thickness Board Thickness Board Thickness Board Thickness
3 ply 3 mm. 5 ply 5 mm. 7 ply. 9 mm. 9 ply. 16 mm.
5 mm. 8 mm. 16 mm. 11 ply. 19 mm.
6 mm. 9 mm. 9 ply. 13 mm. 22 mm.
All glass shall be of the best qualityfree from specks, bubbles, smokes, veins, air holes blisters and otherdefects. Thekingof
glass to beused shall bementionedin theitem or
specificationorinthespecialprovisionsorasshownindetaileddrawings.Thicknessof glass panes shall be uniform. The
specifications or different kinds of glass shall be as under.
In absence of any specified thickness or weight in the item or detailed specifications of the item of work, sheet glass shall
be weighing 7.5 Kg/Sq.m. for panes upto 600 mm x 600 mm.
For panes larger than 600 mm. x 600 mm. and upto 800 m. x 800 mm. the glass weighing not less than 8.75 Kg/Sq.m. shall
be used. For bigger panes upto 900 mm. x 900 mm. glass weighing not less than 11.25 Kg/Sq.m. shall be used.
Sheet glass shall be patent flattened glass of best quality and for glazing and framing purposes shall conform to I.S. : 1761-
1960. Sheet glass of thespecified coloursshall be used, if so shown on detailed drawings or so specified. For important
buildings and for panes with any dimension over 900 mm. plate glass of specified thickness shall beused.
When plate glass is specified it shall be ‘Polished patent plate glass’ of best quality. It shall have both the surface ground
flat and parallel and polished to obtain clear undisturbedvisionand reflection.The plate glass shallbeof thethickness
mentionedin theitemorasshowninthedetaileddrawingoras specified. Inabsenceofanyspecified thickness and type of glass
shall be as per details on drawings or as specified or as directed.
This type of glass transmits light so that vision is Partially or almost completely
obscured.Glassshallbeplainrolled,figured,ribbedorfluted orfrosted glassasmaybe specified as required. The thickness and
type of glass shall be as per details ondrawings or as specified or as directed.
Glass shall be with wire netting embedded in a sheet of plate glass electrically welded
13mm.Georgiansquaremeshmaybeused.Thicknessofglassshallnotbelessthan6
mm.Wiredglassshallbe oftype andthicknessas specified.
M-39.AcrylicSheets :
Acrylic sheet be of thickness as specified in the item and of an specified shape and size as the case may be. Panels may be
flat or curved . It should be light in weight. It shallbe colourless or coloured or opaque as specified in the item. Colourless
sheet shall beas transparent as the finest optical glass. Its light transmission rate shall be about 95%. Transparency shall not
be affected for the sheets of larger thickness. It shall be extremely resistant to sunlight, weather and low temperatures. It
shall not show any significant yellowing or change in physical properties or loss of light transmission over a longer period
of use. The sheet shall be impact resistant also. Sheets should be available in complete range of standard transparent,
translucent and opaque colours. Sheets shall be of such qualitythat theycan be cut bent and jointed as desired. Solution for
the joints shall be used as per the requirement of manufacturer.
M-40.Particleboard:
The particle boards used for face panels shall be of best quality free from any defects. The particle boards shall be made
with phenolmaldehyde adhesive. The particle boards shall conform to I.S. 3087-1965. “Specification for wood particle
board for general purpose”. The size and the thickness shall be as indicated.
M-41.Expandedpolystyreneof framedstopperslabs:
The expanded polystyrene ceiling boards and tiles shall be approved make and shall be of size, thickness, finish and colour
as indicated. It shall be of high density and suitable for use as insulating material. The insulating material shall be like slab
of Thermocol etc.
M-42.Resin bondedfiberglass:
Theresinbondedfiberglasstiles,orrollsshallbeofapprovedmakeandshallbeof sizes, thickness and finish as indicated.
FortestofMinerrakwoolthermalinsulationBlanketI.S.:3144?1965shallbe followed.
Insulationwoolblanketshallbewithfollowingcoveringsononeorbothsidesas indicated.
(1) BituminisedhessainKraftpaperforkeepingoutdust.
(2) HessianclothorKraftpaperforkeepingoutdust.
(3) G.I.wirenetting,suitable forsurfacetobe plastered over.
M-43.Fixturesandfastenings:
The fixtures and fastenings, that is, butt, hinges, tee and strap hinges sliding door bolts, tower bolts, door latch, bath room
latch, handles, door stoppers, casement window fasteners, casement stays and ventilators catch shall be made of the metal
as specifiedin the item or its specifications.
They shallbe of iron,bras,aluminum,chromiumplatedironchromium platedbrass, copper oxidised iron, copper oxidised brass
or anodized aluminum as specified.
The fixtures shall be heavy, Medium or light type. The fixtures and fastenings shall be smooth finished and shall be such as
will ensure ease of operation.
Thesamplesoffixturesandfasteningsshallbegotapprovedasregardsqualityand shape before providing them in position.
Brass andanodisedaluminumfixturesandfasteningsshallbebrightfinished.
Holdfastsshallbemadefrommildsteelflat30 cm.length andoneoftheholdfastsshall be bent at right angle and two nos. of 6 mm.
diameter holes shall be made in it forfixing it to the frame with screws. At the other end. The holdfast shall be forked and
bent at right angles n opposite directions.
Railwaystandardheavytypebutthingesshallbeusedwhensospecified. Thestrap hinges shall be manufactured
from M. S. Sheet.
Sidingdoorbold(Aldrops):43TheAldropsasspecifiedintheitemshallbeusedand shall be
got be got approved.
Tower bolts (Barrel Type):43.5.1 : Tower bolts as specified in the item shall be used
as shall be used and shall be got approved.
DoorLatch:43.7.1Thesizeof doorlatch shallbe taken asthe lengthof latch.
BathroomLatch :43.5.1Bathroomlatch shallbe similartotower bolt.
Handle:Thesizeofthehandlesshallbedeterminedby theinsidegriplengthofthe handles. Handles shall have a base plate of
length 50 mm more than size of the handle.
Door Stopper: 43.9.1 door stoppers shall be either floor door stopper type or doorcatch type floor stopper shall be of
overall size as specified as shall have rubber cushion.
Door Catch :43.10.1 Door catch shall be fixed as height of about 900 mm from the floorlevel so that onepartofthecatchis
fittedon theinsideoftheshutterand theother part is fixed in the wall with necessary wooden plug arrangements for appropriate
fixate. The catch shall be fixed 20 mimesed the face of the door for easy operation of catch.
Wooden Doorstopwithhighs:
wooden door stop of size 100mm X60 mm X 40 mm shall be fixed on the door frame with a high of 75mm size at high of
900 mm from the floor level the wooden doorstop shall be provided with 3 coats of approve oil paint.
Case meant window fastener : Casement window fastener for single leaf window
shutter shall be left or right handled as directed.
Casementstays(straightpegstay):
The stays shall be made from a channel section having three holes at appropriate position so that the window can be opened
either fully or partially as directed as directed. size of the stay shall be 250 mm to 300 mm as directed.
Ventilatorcatch:
Thepattern andshapeof the catchshallbe asapproved .
Thebaseand socket plateshall be made formminimum 3 mm thick plate and projected pivot shall not be less than 12 mm
length and shall be firmlyriveted to the base plate in case of brass pivot.
Oil Paints shall beofthe specified colour and shade, and as approved. The readymixed paints shall only be used. However, if
ready mixed paint or specific shade or tint is not available,whitereadymixedpaintwithapprovedstainerwillbeallowed.Insucha
case, the contractor shall ensure that the shade of the paint so allowed shall be uniform. All the paints shall meet following
general requirements :
Paint shall not show excessive setting in a freshly opened full can and shall easily be redispressed with a paddle to a smooth
homogeneous state. The paint shall show no curing, livering, caking or colour separation and shall be free from lumps and
The paint as received shall brush easily, possess good levelling properties and show no running or sagging tendencies.
Thepaintshall notskinwithin 48hoursin athreequarters filledclosed container.
The paintshalldry toasmoothuniformfinishfreefromroughness,grit,unevenness and other imperfections.
Readymixedpaintshallbeusedexactlyasreceivedfromthemanufacturesand generally according to their instructions and
without any admixtures whatsoever.
The enamel paint shall satisfy in general requirements as mentioned in specification of oil paints. Enamel paint shall
conform to I.S. 2933-1975.
Thefrenchpolishofrequirementandshapeshallbepreparedwiththebelowmentioned ingredients and other necessary materials:
Denaturedspritofapprovedquality(ii)Chandras(iii)Shellac(iv)Pigment. The French polish so prepared shall
conform to I.S. : 348-1968.
Marblechipsformarblemosaicterrazzo:
Themarblechips shall beofapproved qualityand shades. It shall behard, sound, dense and homogenous in texture with
crystalline and coarse grains. It shall be uniform in colourand free from stains, cracks decay and weathering.
The size of various colours of marble chips of approved qualityand colours onlyas per grading as decided by the Engineer-
in-charge shall be used for marble mosaic tiles or works.
The marble chips shall be machine crushed. They shall be free from foreign matter,dust etc. Except as above, the chips shall
conform to I.S. : 2114-1962.
M-47.FlooringTiles:
PlainCementtiles:
The plain cement tiles shall be general purpose type. These are the tiles in the manufacturer of which no pigments are used
Cement used in the manufacturer of tiles shall be as per Indian Standards.
The tiles shall be manufactured from a mixture of cement and natural aggregates by pressure process. During manufacture,
the tiles shall be subjected to a pressure of not less than 140 Kg/Sq. Cm. The proportion of cement to aggregate in the
backing of the tiles shall be not less than 1:3 byweight. The wearing face through the tiles are of plain cement, shall be
provided with stone chips of 1 to 2 mm. Size. The proportions of cement to the marble chips aggregate in the wearing layer
of the tiles shall be threeparts of cement to one part chips by weight. The minimum thickness Of wearing layer shall be
mm. The colour and texture of wearing layer shall be uniform through out its face and thickness. On removal from mould,
the tiles shall be kept in moist conditions continuously at least for seven days and subsequently, if necessary, for such
longperiod as would ensure their conformity to requirements of I.S. : 1237-1980 regarding strength resistance to wear and
water absorption.
The wearing face of the tiles shall be plain, free from projections, depressions and cracks and shall be reasonably parallel to
the back face of the title. All angles shall be right and all edges shall be sharp and true.The size of tiles shall generally be
square shape 24.85 Cm. x 24.85 Cm. or 25 Cm. x25 Cm. The thickness of tiles shall be 20 mm.
Tolerance of length and breadth shall be plus or minus one millimeter, Tolerance or thickness shall be plus 5 mm.
The tiles shall satisfy the tests as regards transverse strength, resistance to wear and water absorption as per I.S.:1237-1980.
PlainColouredTiles:
These tiles shall have the same specification as per plain cement tiles as per (A) above except that they shall have a plain
wearing surface where in pigments are used. They shall conform to I.S. 1237-1980.
The pigment used for colouring cement shall not exceed 10 percent by weight ofcement used in the mix. The pigments,
synthetic or otherwise, used for colouring tiles shall have permanent colour and shall not contain materials detrimental to
Thecolour ofthe tiles shallbespecifiedin theitemor as directed.
Marblemosaictiles:
Thesetileshavethesamespecificationsasperplaincementtilesexcepttherequirements as stated below:
The marble mosaic tiles shall conform to I.S. 1237-1980. The wearing face of the tiles shall be mechanical ground and
filled. The wearing face of tiles shall be free from projections, depressions and cracks and shall be reasonablyparallel to the
backface of the tiles. All angles shall be right angles and all edges shall be sharp and true.
Chips used in the tiles be from smallest up to 20 mm. size. The minimum thickness of wearing layer of tiles shall of 6 mm.
For pattern of chips to be used on the wearingface, a few samples with or without their full size photographs as directed
shall be presented to the Engineer-in-charge for approval.
Any particular samples, If found suitable shall be approved by the Engineer-in-charge, or he may ask for a few more
samples to be prepared indicating roughly the particular sized chips to be more or less in the samples presented. The
samples have to be madeby the contractor till a suitable sample is finally approved for use in the work.
The Contractor shall ensure that the tiles supplied for the work shall be in conformity with the approved sample only, in
terms of its dimensions, thickness of backing layer and wearing surface, materials, ingredients, colour shade, chips,
distribution etc. required.
ThetilesshallbepreparedfromcementconformingtoIndianStandardsorcoloured Portland cement generally depending upon the
colour of tiles to be used or as directed.
Chequred tiles shall be plain cement tiles or marble mosaic tiles. The former shall have
thesamespecificationasper(A)aboveandtheletteraspermarblemosaictilesasper
(C)exceptasmentionedbelow:
The tiles shall be of nominal size of 250 mm. x 250 mm. or as specified. The center to center distance of chequer shall not
beless than 25 mm. and not more than50 mm. The overall thickness of the tile shall be 22 mm.
The grooves in the chequers shall be uniform and straight. The depth of the grooves shall not be less than 3 mm. The
chequred shall be plain, coloured or mosaic as specified. The thickness of the upper layer measured from the top of the
chequres shall not be less than 6 mm. The tiles shall be given the first grinding with machine before delivery to site.
Tilesshallconformtorelevant I.S.1237-1980.
ChequredTilesforStaircases:
Therequirementsofthesetilesshallbethesameaschequredasper(D)aboveexceptin following respects;
(1) Thelength of atile includingnoseshall be330 mm.
(2) Theminimum thickness shallbe28 mm.
(3) Thenoisingshall havealso thesame wearinglayer as at thetop.
(4) Thenosingedgeshall berounded.
(5) The front portion of the tile for a minimum length of 75 mm. from andincluding
the nosing shall grooves running parallel to noising and at center not exceeding
25 mm. Beyond that the tiles shall have normal chequer pattern.
M-48.RoughKotahStone:
The kotah stones shall be hard, even, sound, and regular in shape and generally be green. Brown colour stones shall not be
allowed for use. Theyshall be without anysoft veins, cracks or flows.
The size of the stones to be used for flooring shall be of size 600 mm x 600 mm and/or size 600 mm x 450 mm, as directed.
However smaller sizes will be allowed to be used to the extent of maintaining required pattern. Thickness shall be as
Tolerance of minus 30 mm. on account of chisel dressing of edges shall be permittedfor length as well as breadth.
Tolerance in thickness shall be + 3 mm.
The edges of stones shall be truly chiselled and table rubbed with coarse sand before paving. All angles and edges of the
stone shall be true, Square and free from chipping and the surface shall be true and plain.
When machine cut edges are specified, the exposed edges and the edges at joints shall be machine cut. The thickness of the
exposed machine cut edges shall be uniform.
M-49.PolishedKotahStones
Polished kotah stone shall has same specifications as per roughkotah stone except as mentioned below:
The stones shall have machine polished smooth surface. When brougth on site, the stones shall be single polished or double
polished depending upon its use. The stones for paving shall generally be single polished. The stones to be used for dedo,
skirting, platforms, sink, veneering, sills, steps, etc. Where machine polishing after the stonesare fixed in situ is not
possible, shall be double polished.
M-50.DholpurStoneSlab :
Dholpur stone slab shall be of best qualityas approved by the Engineer-in-charge The stone slab shall be even,sound and
durable, regular in shape and of uniform colour.
The size of the stone shall be specified in the item or detailed drawings or as approved by the Engineer-in-charge. The
thickness of the stone shall be as specified in the itemof work with the permissible tolerance of plus or minus 2 mm. The
provisions inrespect of polishing as for polished Kotah stone shall apply to polished Dholpur stone also. All angles and
edges ofthefaceofthestone slabshall befine chiseled orpolished as specified in the item of work and all the four edges shall
be machine cut. All angle and edges of the stone slab shall be true and plane.
The sample of stone shall be got approved form the Engineer-in-charge for shade and tint for a particular work. It shall be
ensured that stones to be used in a particular work shall not differ much in shade or tint from the approved sample.
M-51.MarbleSlab:
Marble slab shall be while or of other colour and of best quality as approved by the Engineer-in-charge
Slabs shall be hard, uniform and homogeneous in texture. They shall have even crystalline grain and free from defects and
cracks. The surface shall be machine polished to an even and perfectly plant surface and edges machine cut true and square.
The rear face shall be rough to provide key for the mortar.
Marble slabs with natural veins, if selected shall have to be laid as per the pattern given by the Engineer-in-charge. Sizeof
the slab shall be minimum 450mm x 450mm. and preferable 300 mm x 600 mm. However, smaller sizes will be allowed to
be used to the extent of maintaining required pattern.
The slab shall not be thinner than the specified thickness at its thinnest part. A few specimen of finished slab to be used
shall be deposited by the Contractor in the office for reference.
Exceptasabove,themarbleslabsshallconformtoI.S.1130-1969.
GraniteStoneSlab :
Granite shall be of approved colour and quality. The stone shall be hard, even, sound regular in shape and generally
uniform in colour. It shall be without any soft veins, cracks of flows.
Thethickness of thestoneshall beasspecifiedinitems.
Allexposedfaceshallbedoublepolishedtotendertrulysmoothandtheevenreflecting surface. The exposed edges and corners
shall be rounded off as directed. The exposed edges shall be machine cut and shall have uniform thickness.
P.V.C.Flooring:
P.V.C sheets for P.V.C. floor covering shall be homogenous flexible type, conforming to I.S. 3452-1966. The P.V.C
covering shall neither develop any toxic effect while put to use nor shall give off any disagreeable order.
Thickness of flexible type covering tiles shall be as specified in the description of theitem.
The flexible type shallbe backedwithHusseinor other wovenfabric.The following tolerances shall be applicable on the
nominal dimension of the sheet rolls or tiles : Thickness + 0.15 mm
1.300mm. squaretiles+ 0.20 mm.
39.00mm.squaretiles+0.30 mm.
2.600mm.squaretiles+0.40mm. 4 Sheets ad
rolls+0.10 percent
The adhesive for PVC flooring shall be of the type and make recommended by the manufactures of PVC sheets/tiles.
M-54.Facingtiles:
The facing tiles (burnt clay facing bricks) shall be free from cracks, flaws and nodules of free lime. Theyshall be
thoroughlyburnt and shall have plane rectangular faces with parallel sides and sharp straight right edged faces. The texture
of the finished surface thatwillbeexposedwheninplace,Shallconformtoanapprovedsampleconsistingnot less than four
stretcher bricks each representing the texture desired. The facing tiles shallhave apleasing appearance, sufficient
resistancetopenetrationbyrainand greater durability than common bricks. The tiles shall conform to I.S. 2691-1972.
Thestandardsizeoffacingbricktilesshallbe19x9x4cms.Thefacingbricktiles shall be provided with frog which shall conform to
Thepermissibletoleranceindimensionsspecifiedaboveshallbeasfollows :
SizeTolerancefor
1stclassBrick 2ndclassBrick
Thetolerancefordistortionorwarpageoffaceoredgesofindividualbrickfroma plane surface and from a straight line respectively
shall be as follows :
FacingdimensionsPermissibletolerance Max. below 19 cms.
-do-above19cm. Max 3.0mm.
The average compressive strength obtained as sample of five tiles when tested in accordance with the procedure laid as per
I.S. 1077-1976 shall be not less than 175 Kg./Sq. Cm. The average compressive strength of any individual bricks shall be
notless than 160 Kg/Sq.Cm.
The average water absorption for five bricks tiles shall not exceed 12 percent ofaverage weight of brick before testing.
Theabsorptionfor eachindividualbricksshall notexceed25 percent.
The brick tiles when tested in accordance with I.S. 1077-1976, the rate of efflorescence shall not be more than ‘Slightly
M-55.Whiteglazedtiles:
The tiles shall be of best quality as approved by the Engineer-in-charge. They shall be flat and true to shape. They shall free
from cracks , crazing, spots chipped edges and corners. The glazing shall be of uniform shade.
The tiles shall be nominal size of 150 mm x 150 mm. unless otherwise specified. The maximum variation from the stated
sizes, other than the thickness of tile, shall be plus or minus 1.5 mm. The thickness of tile shall be 6 mm. Except as above
the tiles shall conform to I.S. 777-1970.
M-56.Galvanized iron pipesandfittings :
Galvanized iron pipe shall be of the medium type and of required diameter and shall comply with I.S. 1239-1979. The
specified diameter of the pipes shall refer to theinside diameter of the bore, Clamps, screw and all galvanized iron fittings
shall be of the standard ‘R’ or equivalent make.
M-57.Bib cockandstopcock:
A bib cock is a draw off tap with a horizontal inlet and free outlet. A stop cock is a valve with a suitable means of
connection for insertion in a pipe line for controlling or stopping the flow.
They shall be of screw down type and of brass chromium plated and of diameter as specified in the description of the item.
They shall conform to I.S. 781-1977 and they shall be of best Indian make. They shall be polished bright.
Theminimumfinishedweight ofbibcockand stopcockshallbeasgivenbelow :
Diameter Bibcock Stopcock Diameter Bibcock Stopcock
M-58.Gun metalwheelvalve:
The gun metal wheel valve be of approved quality. These shall be gun metal fitted with wheel and shall be of gate valve
opening full way and of the size as specified. These shall conform to I.S. 778-1971.
M-59.Whiteglazedporcelainwashbasin:
Wash basin shall be of white porcelain first quality best Indian make and it shall conform it I.S. 2556 (Part-IV) 1972 and
The size of the wash basin shall be as specified in the item, Wash basin shall be of one piece construction with continued
over-flow arrangements. All internal angles shall be designed so as to facilitate cleaning. Wash basin shall have single tap
hole or two holes as specified. Each basin shall have a circular waste hole which is either rebated or
beveledinternallywith65mm.diameterattopand10mm.depthtosuitthewaste
fitting. The necessary stud slot to receive the bracket on the under side of the basinshall be provided. Basin shall have an
internal soap holder recess which shall fullydrain into the bowl.
White glazed pedestal of the quality and colour as that of the basin shall be provided where specified in the item. it shall be
completely recessed at the back for reception of supplyand wash pipe. It shall be capable of supportingthe basin rigidlyand
adequately andshall besodesignedas tomaketheheight from floor totop of basin 750mm. to
mm. as directed.
M-60.Europeantypewatercloset:
TheEuropeantypewaterclosetshallbewhiteglazedporcelainfirstqualityandshallbe of wash down type conforming to I.S. 2556-
‘S’ trap shall be provided as required with water seal not less than 50 mm. The solid plastic seat and cover shall be of the
best Indian make conforming to I.S. 2548-1980. They shall be made of moulded syntactic materials which shall be tough
and hard with high resistance to solvents and shall be free from blisters and other surface defects and shall have chromium
plated brass hinges and rubber buffer ofsuitable size.
M-61.Orissa typewatercloset:
The specification of Orissa type white glazed water closet of first quality shall conform to I.S. 2556 (Part-III) 1981 and
relevantspecification of Indian type water closet except that pan will be with the integral squatting pan of size 580 mm x
440 mm. with raised footrest.
M-62.Indian typewatercloset:
The Indian type white glazed water closet of first qualityshall be of size as specified in the item and conforming to I.S. 771-
1979 and I.S. 2556 (Part-II) 1981. Each pan shall have integral flushing ring of suitable type with adequate number ofholes
alroung as directedtohavesatisfactoryflushing. It shallalso haveinletatbackor frontconnecting flush pipe as directed. The
inside of the bottom of the pan shall have sufficient slope from the front towards the outlet and surface shall be uniform and
Panshallbeprovidedwith100mm.diameter‘P’or‘S’trapwithapproximately50
mm.watersealand50mm.diametervent horn.
Foot Rests :A pair of white glazed earthen ware rectangular foot rests of
minimumsize250mm.x130mm20mm.shallbeprovidedwithwatercloset.
M-63.GlazedEarthenWareSink:
The glazed earthen-ware sink shall be specified size colour and quality. The sink shall conform to I.S. 771 Part-II-1979
waste coupling of standard pattern with brass chain and rubber plug shall be provided with sink.
The pipes shall conform to I.S. 1239-Part-I 1973 and I.S. 404-1962 for steel and lead pipes respectively 32 mm. brass waste
coupling of standard pattern with brass chainand rubber plug shall be provided with sink.
M-64.GlazedearthenwareLippedtypeflatbackurinal/cornertypeurinal :
Thelipped typeurinal shall beflat back or corner typeas specified in theitem and shall conform to I.S. 771-1979. It shall be of
best Indian make and size as specified and approved by the Engineer-in-charge. The flat back or corer type urinal must be
1st quality free from any defects, cracks, etc.
M-65.Low levelenamelflushingtank:
The low level flushing tank shall be of 15 liters capacity. It shall conform to I.S. 774- 1971. The flushing vaster shall be of
best quality and free from any defects. The flushingtankshallhaveoutlet32mm.diameterTheoutletshallbeconnectedwith
W.C. Pan by lean pipe or P.V.C. pipe as specified. The flushing tank shall be provided with inlet and outlet for fixing G.I.
inlet pies and over-flow pipes. The flushing castern shall be provided with chromium plated handle for flushing. The
flushing tank shall be provided with brackets of cast iron so that it can be fixed on wall at specified height. The brackets
shall Conform to I.S. 775-1970.
M-66.Castironflushingcistern :
The cast iron flushing cistern shall be of 15 liters capacity. It shall conform to I.S. 774- 1971. The flushing cistern shall be
of best quality free from any defects. The flushing
cisternshallhaveoutletof32mm.diameter.Theoutletsshallbeconnectedtoleadpipe
of32mm.diameter.TheleadpipeshallconformtoI.S.404(Part-I)1962.Forfixing
G.I. inlet pipes and overflow pipe 20 mm. diameter. inlet and outlet shall be provided. The flushing cistern shall be
provided with galvanised iron chain and pull of sufficient length and shall be got approved from the Engineer-in-charge.
The cast iron flushing cisternshallbepaintedwithonecoatofanticorrosivepaint andtwo coatsofpaints.The
flushingcisternshallbefixedontwoC.I.brackets.TheC.I.bracketsshallconformto
M-67.Flushcock:
Halfturnflashcock(HeavyWeight)shallbeofgunmetalchromiumplatedofdiameter as specified in the description of the item.
The flush cock shallconform to relevant Indian Standard.
M-68.Castiron pipesandfittings :
All soil waster, vent and antisyphonage pipes and fittings shall conform to I.S. 1729- 1964. The pipe shall have spigot and
socket ends with head on spigot end. The pipes and fittings shall be true to shape, smooth, cylindrical, their inner and outlet
surfaces being as nearly as practicable concentric. They shall be sound and nicely cast and shall befreefromcracks,laps,
pinholesorotherimperfectionandshallbeneatlydressedand carefully fettled.
Theend ofpipesandfittings shallbe ofreasonablesquareto theiraxis.
The sand cast iron pipes shall be of the diameter as specified in the description andshall be in lengths of 1.5 M, 1.8 M. and
M. including socket ends of the pipe unless shorter lengths are either specified or required at junctions etc. The pipes and
fittings shall be supplied without ears unless specified or directed otherwise.
The Standard weights and thickness of pipes shall be as shown in the following table : A tolerance up to minus 10 percent
may however be against these standard weights.
Sr. Nominal Thickness OverallWeightofpipeexcluding
1.5 m. long 1.8m. long 2.m. long
A tolerance upto minus 15 percent in thickness and 20 mm. in length will be allowed.For fittings tolerance in lengths shall
be plus 15 mm. and minus 10 mm.
The thickness of fittings andtheir socket and spigot dimensions shall conform to the thickness and dimensions specified for
the corresponding sizes of straight pipes. The tolerances in weights and thickness shall be the same as for straight pipes.
M-69.NahniTrap :
Nahni trap shall be of cast iron and shall be sound and free from porosity or other defectswhichaffectserviceabilityThe
thicknessofthe basemetalshallnotbelessthan
6.5 mm. The surface shall be smooth and free from craze, ships and other flaws or any other kind of defects which affect
serviceability. The size of nahni trap shall be as specified and shall be of self cleaning design.
The Nahni trap shall be of quality approved by the Engineer-in-charge and shall generally conform to the relevant Indian
The Nahni trap provided shall be with deep seal, minimum 50 mm, except at places where trap with deep seal can not be
accommodated. The cover shall be cast iron. Performed cover shall be provided on the trap of appropriate size.
M-70.GullyTrap:
Gully Trap shall conform to I.S. 651-1980. It shall be sound, free defects such as fire cracks. The glaze of the traps shall be
free from crazing. They shall give a sharp clear note when struck with light hammer. There shall be no broken blisters.
Thesizeof thegullytrapshall beas specified in the item.
Each gully trap shall have one C.I. gratings of square size corresponding to the dimensions of inlet of gully trap, It will also
have a water tight. C.I. cover with frame insidedimensions300mm.x300mm.,thecoverwithframeinsidedimension,300
mm.300mm.,thecoverweighingnotlessthan4:53Kg.andtheframenotlessthan
2.72Kg.Thegratingcoverandframeshallbeofsoundandgoodcastingandshallhave truly square machined seating faces.
M-71.GlazeStoneWare Pipe And Fitting:
The pipes and fittings shall be of best quality as approved by the Engineer-in-charge. The pipe shall be of best quality
manufactured from stone-ware of fire clay, salt glazed thoroughly burnt through the whole thickness, of a close even
texture, shall be smooth and perfectly glazed. The pipe shall be capable to withstandpressure of 1.5 mm. lead without
showing sign of leakage. The thickness of the wall shall not be less than 1/12th of the internal dia. The depth of socket shall
not be less than 38 mm. The socket shallbe sufficientlylarge to allow a joint of 1 mm. around the pipe.
Thepipesshall generallyconformto relevantI.S.651-1980.
M-72.WallPegRail:
The aluminum wall peg rail shall have three aluminum pegs of approved qualityand size. It shall be fixed on teakwood plant
of size 450 mm. x 75 mm. x 20 mm. The teakwood shall be french polished or oil painted as specified.
M-73.G.I.WaterSpot:
The G.I.pipes of 40 mm. dia shall be of medium quality and specials shall be of ‘R’ brand or equivalent brand of best
approved quality.
The pipe shall have length as required for the thickness of wall in which it is fixed. and at the outside endtee and bend cut at
half the length shall be provided and at other end coupling shall be provided to have better fixing. The water spout shall be
provided as per detailed drawings or as directed.
M-74.AsbestosCement Pipe(A.C.Pipe):
The asbestos cement pipe of diameter as specified in the description of the item shall conform to I.S. 1626-1980. Specials
like bends, shoes cowls, etc. shall conform to relevant Indian Standards. The interior of pipe shall have a smooth finish,
regular surfaceandregular,internaldiameter.Thetoleranceinalldimensionsshallbeasper
I.S.1626-Part-I1980.
M-75.CrydonBallvalve:
Ball valve of screwed type including polyethylene float and necessary lever etc. shallbe of the size as mentioned in the
description of item and shall conform to I.S. 1703-
M-76.Bitumen Felt ForWaterProofingAndDampProofing:
Bitumen felt shall be on the fiber bases and shall be type 2, self finished grade-2 and shall conform to I.S. 1322-1970.
M-77SelectedEarth:
The selected earth shall be hat obtained from excavated material or shall have to brought from outside as indicated in the
item. If item does not indicate anything, The selected earth shall have to be brought from outside.
The selected earth shall be good yellow soil and shall be got approved from the Engineer-in-charge. In no case black cotton
soil or similar expansive and suitable soil shallbeused. Itshallbecleanandfreefromallrubbishandperishablematerials,stones or
brick bats. The clods shall be broken to a size of 50. mm or less, Contractor shall
makehisownarrangementathisowncostforlandforborrowingselectedearth.Thestacking of material shall be done as directed by
the Engineer-in-charge in such a way as not to interfere with any constructional activities and in proper stacks.
When excavated material is to be used, onlyselected stuff got approved form the Engineer-In-Chargeshall
beused.Itshallbestackedseparatelyandshallcomplywith all the requirements of selected earth mentioned above :
M-78.BarbedWire:
ThebarbedwireshallbeofgalvanisedsteelanditshallgenerallyconformtoI.S.278- 1978.Thebarbed wireshall beif type-
Iwhosenominal diameter for linewireshall be
2.5mm. and pointwire2.24 mm. Thenominal distancebetween twobars shall be75
mm. Unless otherwise specified in the item. The barbed wire shall be formed by twisting together two line wires, One
containing the barbs. The size of the line and point wires and barb spacings shall be as specified above. The permissible
deviation formthenominaldiameterofthelineworeandpointwireshallnotexceed+0.08mm.
The barbs shall carry four points shall be formed by twisting two point wires each two turns, lightly round one line wire,
making altogether four complete turns. The barbs shall be so finished that the four points are set and locked at right angles
to each other. The barbs shall have a length of not less than 13 mm. and not more than 13 mm. andnot more18 MM. The
points shall be sharp and cut at an angle not greater than 35 degree of the axis of the wire forming the barbs.
The lind and point wire shall be circular section free from scale and other defects and shall be uniformly galvanised. The
line wire shall be in continuous length and shall not contain any weld other than those in the rod before it is drawn. The
distance between two successive splices shall not be less than 15 meters.
Thelengthsper100Kg.ofbarbedwireI.S.typeIshallbeasunder Nominal 1000 meter Minimum
Meter Maximum 1066 Meter. M-79.Tensile Structure Fabric:
When architects and designers approach us with a tensile fabric structure idea, sometimes they know what type of fabric
they want, other times, they look to us for direction.This article provides an overview on the fabrics we design & build
with. Today’s fabrics are innovative, allowing you to create iconic spaces.
A coated structural fabric consists of a woven base cloth stabilised and protected by a coating on both sides. The base cloth
consists of warp threads running the length of the roll and weft threads running across the width.
A mesh fabric is a coated cloth with spacing between the thread bundles. With some meshes for interiors use the threads are
coated before weaving.
A typical structural fabric would have a tensile strength of 10 tonnes in the warp and weft direction. A factor of safetyof
on a maximum design loads is used select a cloth although this may be reduced if the circumstances are well understood ie.
if the maximum strength of the membrane is 10 tonnes/linear metre the maximumpermissible load would be
tonnes/metre, and the typical pre-stress load would be 150-350kg/metre.
DETAILEDSPECIFICATIONS-EXCAVATION
1.0 Removingandscrapingofolddeterioratedplasterofanythicknessfrommwall
/R.C.Cmemberincludingstackingofserviceablematerialanddisposalof unserviceable
from site of work with all lead and lift
Therate shall beforaunit of onesq.mt
2.0 Demolition of Brick work and stone masonry including stacking of serviceable
materilas and disposal of unserviceable materials with all lead and lift.(ii) In
Therate shall beforaunit of onecu.mt
3.0 (a) Excavation for foundation upto 1.5 M depth including sorting out and
stacking useful materials disposing of the excavated stuff upto 50 meter lead
in loose or soft soil.
Any soil which generally yields to the application of ackaxes and shoves,
phawaras rakes or any such ordinary excavating implement or organic
soil, gravel silt, sand turfloam, clay, peat etc., fall under this category.
Clearingthe site:
The site on which the structure is to be built shall be cleared and
allobstructions, loose stone, materials and rubbish of all kind, bush,
wood andtrees shall be removed as directed. The materials so obtained
shall be propertyof the Government and be conveyed and stacked as
directed. within 50 M. lead. The roots of the trees coming in the sides
shall be cut and coated with a hot asphalt.
The rate of site clearance is deemed to be included in the rate of earth
work for which no extra will be paid.
2.0Setting Out : After clearing the site, the center lines will be given by the Engineer-in-charge. The contractor shall
assume full responsibility for alignment,elevationanddimensionofeachandallpartsofthework.Contractor shall
supplylaborers, materials, etc. required for setting out the reference marks and bench marks and shall maintain
them as long as required and directed.
4.0 Excavation : The excavation in foundation shall be carried outin true line and
level and shall have the width and depth as shown in the drawings or
asdirected.Thecontractorshalldothenecessaryshoringandshuttingorproviding
necessary slopes to a safe angle, at his own-cost. The payment for such
precautionary measures shall be paid separately if not specified. The bottom of
the excavated area shall be 1 evened both longitudinally and transversely. as
directed by removing and watering as required. No earth filling will be allowed
for bringing it to level, if mistake or any other reason excavation is made.deeper
or wider that shown on the plan or directed. The extra depth or width shall be
made up with concrete of same proportion as specified for the foundation
concrete at the cost of the contractor. The excavation up to 1.5 m. depth shall be
measured under this item.
5.0 Disposalof theexcavatedstud :
The excavated stuff of the selected type shall be used in filling the
trenches and plinth or leveling the ground in layer including ramming
and watering etc.
The balance of the excavated quantity shall be removed by the contractor
from the site of work to a place as directed with lead upped 50 M. and
6.0 Modeofmeasurementandpayment:
The measurement of excavation in trenches for foundation shall be made
according to the sections of trenches shown on the drawing or as per
sections given by the Engineer-in-charge. No payment shall be made
excavationmadeinexcessofaboverequirementsorduetosloppingandslopin
g backas found necessary on account of conditions of soil , and
requirements of safety.
Therate shall befor aunit of onecubic meter.
4.0(A) : Excavation for foundation for depth from 1.50 M. to 3.0 M. including
sorting out and stacking of useful materials and dosposing of the excavated
stuff upto 50 M. in lead-loose or soft soil.
The relevant specifications of item No. 4.0.0.(A) shall be followed except that
the excavation work shall be carried out in loose or soft soil with lift 1.5 M. to 3.0.M.
Modeofmeasurementandpayment:
TherelevantspecificationofitemNo.4.0.0. A()shallbefollowed.
Theexcavation workof lift1.5 M. to3.0.M. shallbemeasuredunder this item.
Therate shall befor aunit of onecubic meter.
5.0Conveyance charges of earth lime, murrum, building rubbish, manure,garbage,
sludge, excavated rock, fly ash, aggregate of any kind etc. comp.upto 5 km
AddItemNo.5-A,5-B,5-C,5-D,5-E
Therate shall befor aunit of onecubic meter.
6.0 Filling available excavated earth (excluding rock) in trenches. plinth, sides
offoundations etc. in layers not exceeding 20 cm.
in depth consolidating each disposited layer by ramming and watering.
Theearthtobeusedforfillingshallbefreefromsalts,organicor otherforeign matter. All clods of earth shall be
broken. As soon as the work in foundation has been completed and measured, the site of foundation shall be
cleared of all debris,brick bats, mortar dropping etc; and filled with earth in layers not exceeding 20 Cms. Each
layer shall be adequately watered,rammed and consolidated before the succeeding layer is laid. The earth shall
be rammed with iron rammers where feasibleand with the butt ends of crow-bars, where rammer cannot be
used.The plinth shall be similarly filled with earth in layers not exceeding 20 Cms. adequately watered and
consolidatedbramming with iron or wooden rammers. When filling reaches finished level, the surface shall be
flooded with water foratleast 24 hours and allowed to dryand then rammed
andconsolidated.Thefinishedleveloffillingshall bekepttoshapeintendedto be given to floor.In case of large heavy
duty flooring like factory flooring, the consolidationmaybedonebypowerrollers,wheresospecified.Theextentof
consolidation required shall also be as specified.The excavated stuff of the selected type shall be allowed to be
used in filling the trenches and plinth. Under no circumstances black cotton soil be used for filling the plinth.
Modeofmeasurementand payment:
The payment shall be made for filling in plinth, in the campusand trenches.
Nodeductionshallbemadeforshrinkageorvoids,ifconsolidatedasinstructed above. The rate shall be for a unit of
one cubic metre.
7.0 Fillinginplinthwithsandunderfloorsincludingwatering,ramming consolidated
and dressing etc. complete.
Sandshallconformto M.6.
The relevant specifications of item No. : 4.12 shall be followed except that sand
shall be filled in under floors, including watering, ramming, consolidation and dressing
Modeofmeasurementandpayment:
Therelevantspecifications ofitemNO. 4.12shallbefollowed.
The rate includes cost of collecting carting sand with all lead and labour for
filling the same in plinth under floors.
Therate shall befor aunit of onecubic meter.
8.0Filling in foundation and plinth with murrum or selected soil in layers of 20 cm.
thickness including watering, ramming and consolidating etc. Complete.
Murrum shall be clean, ofgood binding quality, and of approved quality
obtained from approved pots/quarries of disintegrated rocks which contain silicones
materials and natural mixture of clay of calcareous origin. The size of murrum shall not
be more than 20 mm.
The relevant specifications of item No. 4.12 shall be followed except that the
murrum orselectedsoil shall befilledin foundation and plinth in 20 cms. layers including
consolidating , ramming, watering, dressing etc. complete.
Modeofmeasurementandpayment:
Therelevantspecifications ofitemNo. 4.12shallbefollowed.
The rate includes cost of collecting and carting murrum/or selected earth of
approved quality with all lead and labour required for filling in trenches and plinth.
Therate shall befor aunit of onecubic meter.
9.0Add extra for Disposing off the excavated stuff of above items for lead of (E)
Therate shall befor aunit of onecubic meter.
10Carring out plinth treatment to post construction / existing structure by
sprayingchemicalsolutionfortermitecontroltreatmentincludinglabourand
materialconsistmentwithI.S.Ispecification.UsingChlordeneandChiorpurfiles
20 EC. As Per 6131_paret-II Consentration Weight onepercent is
recommended i.e one litre 20 EC chemical emulsion with 19 liter give 1 %
concrentration\ inclusive of one litre chemical emulsion appication at the rate
of 5 Litre chemical / Sqm of surface is recommended as per I.S
Providing and injecting Chemical emulsion for pre constructional anti-termite treatment for all types of
structure with / without basement with RCC foundation/RCC wall or with load bearing walled foundation or
developing areas tree pits, water body etc. The chemical used shall be chloropyriphos (1:19)/Biflex
TC/lindaneorequivalentasperapprovedmakeasperlatest IS code no 6313 (Part II) . Plinth area in plan at GF shall
only be measured and paid. A guarantee bond of 10 years shall be furnished. Rate shall be inclusive of material
required for Anti Termite Treatment and labour for applying.a) Bottom surface and the sides of the excavation
made for masonry foundations at therateof4 liters/ ofsurfacearea(whereverapplicable).b)At therateof 7.5 liter/
Sq.m. of surface area to the backfill at the depth of 500mm below the originalground level. The soil in the
immediate contact with the vertical surfaceof RCC column shall be treated.c) Top surface of the plinth filling at
the rate of 5 liter/Sq.m. of internal plinth area etc. complete.d) Internal vertical surface from original Ground
level to top of the earth filled in the plinth at the rate of 7.5 liter/Sq.m. of surface area in contact.e) at the rate of
7.5 liter/ Sq.m. to the externalvertical surfacebelow finished Ground level to the full depth of the filling
complete by injecting chemical after drilling the holes of 12 to 15mm dia, with depths of approx. 300 to
mm and at 150mm centre to centre and as close to the wall as possible.f) All holes for electrical data, water
supply, drainage etc. shall be treated.
Material:Thematerialshallbesame asperitem
The chemical barrier shall be complete and continuous under whole of the structure to be protected. The
treatment shall be done as per the PCI specifications. Treatment for building shall start after the excavation is
complete and before layingsoling and PCC the surface should be quite dry.The treatment shall be carried out in
the following stages:
Treatmenttosoilbelowraft:
The soil in the raft shall be compacted and leveled with mechanical rollers.The procedure of the same is
covered in the relevant item no. The surface of earth shall be treated with emulsion at the rate of 5 liters per sq.
m. The treatment shall be done before laying rubble soling and PCC.
Treatmentto soilalongtheretainingwall:
The soil along the retaining wall shall be treated at the rate of 5liter per sq. m. The treatment shall follow the
backfilling which shall be done in layers of 30 cms. Rodding shall be carried out to facilitate the absorption of
the chemical emulsion.
a) At the rate of 7.5 liter/ Sq.m. of surface area to the backfill at the depth of
500mm below the originalground level. The soil in the immediate contact with
the vertical surfaceof RCC column shall be treated.
b) Top surface of the plinth filling at the rate of 5 liter/Sq.m. of internal plinth
area etc. complete.
c) Internal vertical surface from original Ground level to top of the earth
filledin the plinth at the rate of 7.5 liter/Sq.m. of surface area in contact.
d) at the rate of 7.5 liter/ Sq.m.to the externalvertical surfacebelow finished
Ground level to the full depth of the filling complete by injecting chemical
after drilling the holes of 12 to 15mm dia, with depths of approx. 300 to
mm and at 150mm centre to centre and as close to the wall as possible.
e) Allholesforelectricaldata,watersupply,drainageetc.shallbetreated.
Treatment of soil surrounding pipes, wastes and conduits etc. shall be
The chemical treatment shall be carried out when the surface is quite dry. Chemical treatment shall not be
carried out when it is raining or when the soil is wet with rainwater or sub soil water. Once formed, treated soil
barriers shall be not disturbed. If disturbed, immediate steps shall be taken to restore the continuity and
compactness of the barrier system. Reconciliation of chemicals
broughtonsiteandusedfortreatmentshallbesubmittedoncompletionofjob. The treatment against termite infection
shall remain effective for a period not less than 10 years, from date of issue of the final certificate of
completion of work. If at anytimeduringthis period,anydefects in treatment are revealed or anyevidence of
infection in anypart of the building or structure is noticed, the Contractor shall rectify the concerned defects
within 15 days on receipt of noticefromEngineer-in-charge.OnContractor'sfailuretodoso,theEngineer- in-charge
may get the same rectified through any other agency at the Contractor's risk and cost, and the decision of
Architect or Engineer-in-charge as to the cost payable bythe Contractor for the same shall be final and binding
to the Contractor. A guarantee bond on (Rs. 100/-)One Hundred Rupees/ asper instruction stamp paper shall be
given by the Contractor to the Government, in the manner form described below
FORMOFGUARANTEEBOND
"I/We ......................(Contractor) hereby guarantee that work will remain unaffected and will not be in any way
damaged by termite or any other germs of similar types, for a period of 10 years after completion of the work
of anti- termite, as per the terms and conditions of the contract and the Contractor hereby indemnifies and
agrees to save the Government from any loss and or damagethat might becaused on account oftermiteand
orothersimilartypeof germs and hereby guarantees to make good any loss or damages suffered by the
Government and further guarantees to redo the affected work without claiming any extra cost."This guarantee
shall remain force for the period of 10 years, from the completion of the work under the contract and it shall
remain bindingto theContractor forperiodof10 years.Thedeposit at therateof50% of the cost of this item from
the running and final bills shall be recovered and retained for the first one year after virtual completion of the
Modeof Measurementsand Payment:
The plan area atPlinth level / Ground floor shall be measured and paid. No deduction shall be
madenorextrapaidfor anyopening forpipes,etc.,upto0.1 m2. Therateshallincludethecost
of all labour and materials required for the operation involved for satisfactory completion of
this item.The rate shall be for a unit of one m2.
9. (A) Providing and laying cement concrete 1:3:6 (1 cement : 3 coarse sand :
graded stone aggregates 40 mm.nominal size) and curing complete excluding
the cost of form work in foundations and plinth.
Water shall conform to M-1. Sand shall conform M-6. Cement shall
conform to M-3. Stone aggregate 40 mm. nominal size shall conform
Before starting concrete bed of foundation treaches shall be cleared
of all loose materials, leveled, watered, and rammed as
Proportionof Mix:
The proportion of cement, sand and coarse aggregate shall be one
part of cement, 3 parts of sand, 6 parts of stone aggregates and
shall so measured by volume.
The concrete shall be mixed in a mechanical mixer at the site of
work. Hand mixingmayhoweverbe
allowedforsmallerquantityofworkifapproved bythe Engineer-
in-charge. When hand mixing is permitted by the Engineer-in-
charge incase of break-down of machinery’s and in the interest
of the work. it shall be carried out on a water tight platform
and care shall be taken to ensure that mixing is continued until
the mass is uniform in colour and consistency. However in
such cases 10% more cement than otherwise required shall
have to be used without any extra cost. The mixing in
mechanical mixer shall be done for a period 1 to 2 minutes.
The quantity of water shall be sufficient to producea dense
concrete of required workability for the purpose.
Transporting&Placingtheconcrete:
The concrete shall be handled from the place of mixing to the final
position in not more than 15 minutes by the method as
directed and shall be placed into its final position, compacted
and finished within 30 minutes of mixing with water
i.e.beforethesettingcommences.
Theconcreteshall belaid inlayersof15cms. to20 cms.
The concrete shall be rammed with heavy iron rammers and
rapidly to get the required compaction and to allow all the
interstriees to be filled with mortar.
After the final set, the concrete shall be kept continuously wet, if
required by pounding for a period of not less than 7 days from
the date of placement.
Modeofmeasurementandpayment:
The concrete shall be measured for its length breadth and depth,
limiting dimensions to those specified on plan or as directed.
Therate shall befor aunitof onecubic meter.
11Providing and laying controlled cement concrete M.250 and curing complete
excluding the cost of formwork and reinforcement for reinforced concrete
work in (A) Foundations, footings, Base of columns and Mass concrete..
1.0 Materials& Workmanship:
2.0 The relevant specifications of item No. 5.8.3 shall be followed for controlled
concrete workfor thework as specified in the item for M-250and the relevant
R.C.C.Foundations,footings,BaseofcolumnsandMass concrete..
3.0 Modeofmeasurementand payment:
The relevantspecifications of item no.5.8.3 shall be followedexcept that thecost
of form work finishing and centering shall be included in the item.
Therate shall befor aunitof onecubicmeter.
13 ProvidingandlayingcontrolledcementconcreteM.250andcuringcomplete
excluding the cost of formwork and reinforcement for reinforced concrete
work in © Slabs ,landing ,shelves ,Balconies, Lintels, Beams,
GirdersandCantilever upto floortwo level.
4.0 Materials& Workmanship:
The relevant specifications of item No. 5.8.3 shall be followed for controlled
concrete work for the work as specified in the item for M-250 and the relevant
Slabs, landing, shelves, Balconies, Lintels, Beams, Girders and Cantilever up
tofloor two level
5.0 Modeofmeasurementand payment:
The relevantspecifications of item no.5.8.3 shall be followedexcept that thecost
of form work finishing and centering shall be included in the item.
Therate shall befor aunitof onecubicmeter
14 Providing and laying controlled cement concrete M.250 and curing complete
excluding the cost of formwork and reinforcement for reinforced concrete
work in (D) Columns, Pillars posts and struts, upto floor two level.
6.0 Materials& Workmanship:
The relevant specifications of item No. 5.8.3 shall be followed for controlled
concrete work for the work as specified in the item for M-250 and the relevant
Columns, Pillars posts and struts, upto floor two level.
7.0 Modeofmeasurementand payment:
The relevantspecifications of item no.5.8.3 shall be followedexcept that thecost
of form work finishing and centering shall be included in the item.
Therate shall befor aunitof onecubicmeter
14Providing and laying controlled cement concrete M.250 and curing complete
excluding the cost of formwork and reinforcement for reinforced concrete
work in (B) Walls, from top of foundation level upto floor two level
8.0 Materials& Workmanship:
The relevant specifications of item No. 5.8.3 shall be followed for controlled
concrete work for the work as specified in the item for M-250 and the relevant
Columns, Pillars posts and struts, upto floor two level.
9.0 Modeofmeasurementand payment:
The relevantspecifications of item no.5.8.3 shall be followedexcept that thecost
of form work finishing and centering shall be included in the item.
Therate shall befor aunitof onecubicmeter
3. Providing TMT Bar FE 500D reinforcement for R.C.C. workincluding bending,
binding and placing in position complete upto floor two level.
Mild steel bars shall conform to M-18. Mild steel binding wires shall conformto
The work shall consist of furnishingand placing reinforcement to the shape and
dimensions shows as on the drawings or as directed.
Steel shall be clean and free from rust and loose mill scale at the time offixing
in position and subsequent concreting.
Reinforcing steel shall conform accurately to the dimensions given in the bar
bending schedules shown on relevant drawings. Bars shall be bent cold to specified shape
and dimensions or as directed using a proper bar bender, operated by hand or power to
attain proper radius of bends. Bars shall not be bent or straightened in a manner that will
injure the material. Bars bent during transport or handling shall be straightened before
being used on the work. They shall not be heated to facilitate bending. Unless otherwise
specified, a ‘U’ type hook at the end of each bar shall invariably be provided to main
reinforcement. The radius of the bend shall not be less than twice the diameter of the
round bar and the length of straight part of the bar beyond the end of the curve shall be at
least four times the diameter of the round bar. In case of bars which are not round and in
case of deformed bars, the diameter shall be taken as the diameter of circle having an
equivalent effective area. The hooks shall be suitablyencased to prevent any splitting of
All the reinforcement bars shall be accuratelyplaced in exact position shown on
the drawing and shall be securely held in position during, metal hangers, supporting wires
or other approved devices at sufficiently close intervals,. Bars shall not be allowed to sag
between supports nor displaced during concreting or any other operations of the work.
All devices used for positioning shall be of non-corrodible material. Wooden and metal
supports shall no extend to the surface of concrete, except where shown on drawings.
Placing of broken stone or brick and wooden blocks shall not be allowed. Pieces of
broken stone orbrick and wooden blocks shall not be used. Layers of bars shall be
separated by spacer bars, precast mortar blocks or other approved devices.
reinforcementafter being placed in position shall be maintained in a clean condition until
completelyembeddedinconcrete.Specialcareshallbeexercisedtopreventany displacement of
reinforcement in concrete already placed. To prevent reinforcement from corrosion,
concrete cover shall be provided as indicated on
drawings.Allthebarsproducingfromconcreteandtowhichotherbarsareto
Bars crossing each other where required shall be secured by binding wires
(annealed) of size not less than 1 mm in such manner that theydo notslip over each other
at the time of fixing and concreting.
As far as possible, bars of full length shall be used. In case this is not possible,
overlapping of bars shall be done directed. When practicable, overlapping bars shall not
touch each other, but be kept apart by 25 mmor 1.25 mm times the
maximumsizeofthecoarseaggregatewhicheverisgreaterbyconcretebetween them. Where
not feasible, overlapping bars shall be bound with annealed wires not less than 1 mm
thick twisted tight. The overlaps shall be staggered for different bears and located at
points along the span where neither shear nor bending movement is maximum.
Whenever indicated on the drawings or desired by the Engineer-in-charge, bars
shall be joined by couplings which shall have a cross-section sufficient to transpit the full
stresses of bars. The ends of the bars that arejoined bycoupling shall be upset for
sufficient length so that the effective cross section at the base of threads is not less than
normal cross-section of the bar. Threads shall be standard threads. Steel for coupling shall
conform to I.S.
When permitted or specified on the drawings, joints of reinforcement bars shall
be butt-welded so as to transmit their full stresses. Welded joints shallpreferably be
located at points when steel will not be subject to more than 75 percent of the maximum
permissible stresses and welds so staggered that at any one section not more than
percent of the rods are welded. Only electric are
weldingusingaprocesswhichexcludesairfromthemoltenmetalandconforms to any or all
other special provisions for the work shall be accepted. Suitable means shall be provided
for holding bars securely in position during welding. It shall be ensured that no voids are
left in welding and when welding is done in two or three stages, previous surface shall be
cleaned properly. Ends of the bars shall be cleaned of all loose scale, rust, grease, paint
and other foreign matter
beforewelding.Onlycompetentweldersshallbeemployedonthework.the
M.S. electrodes used for welding shall conform to I.S. 814. Welded pieces of reinforcement shall be tested.
Specimen shall be taken from the actual site and their number and frequency of test shall be as directed.
Modeofmeasurementandpayment:
For the purpose of calculation consumption , wastage shall bot be permitted
beyond 5 percent . Excess consumption over 5 %will be charged at penal rate
Reinforcement shall be measured in length including overlaps, separately for
different diameters as actually used in the works. Where welding or coupling is resorted
to in place of lap joints such joints shall be measured for a pimento as equivalent length
of overlap as per design requirement. From the length so measured, the weight of
reinforcement shall be calculated in tones on the same basic of as per M-18 even though
steel is supplied to the contractor by the department on actual weight Length shall include
hooks at the ends. Wastage and annealed steel wire for binding shall not be measured and
the cost of these items shall be deemed to be included in the rate for reinforcement.
Therate shall befor aunit OneKg
16Providing formwork of ordinary timber planking so as to give a rough finish
including centering shuttering strutting and propping etc. Height of propping
andcenteringbelowsupportingfloortoceilingnotexceeding4M.andremovalofthes
ameforinsitureinforcedconcreteandplainconcreteworkin.
(A)FoundationsFootingsBasesofColumnsetc.andMassconcrete
10.0 Materials& Workmanship:
The relevant specifications of item No. 9.1shall be followed for formwork of
ordinary timber planking so as to give a rough finish including centering
shuttering strutting and propping etc.
11.0 Modeofmeasurementand payment:
Therelevantspecificationsofitemno.9.1shallbefollowedexceptthatthecost of form
work finishing and centering shall be included in the item.
Therate shall befor aunitofSq. meter
18 Providing formwork of ordinary timber planking so as to give a rough finish
including centering shuttering strutting and propping etc. Height of propping
and centering below supporting floor to ceiling not exceeding 4 M. and
removal of the same for in situ reinforced concrete and plain concrete workin.
(B) Flat surfaces such as soffits of supspened floors slabs Landings andthe
like. (1) Floors etc. upto 200 mm in thickness.
12.0 Materials& Workmanship:
The relevant specifications of item No. 9.1shall be followed for formwork of
ordinary timber planking so as to give a rough finish including centering
shuttering strutting and propping etc..
13.0 Modeofmeasurementand payment:
Therelevantspecificationsofitemno.9.1shallbefollowedexceptthatthecost of form
work finishing and centering shall be included in the item.
Therate shall beforaunit ofSq. meter
19 Providing formwork of ordinary timber planking so as to give a rough finish
including centering shuttering strutting and propping etc. height of propping
and centering below supporting floor to ceiling not exceeding 4 M. and
removal of the same for in situ reinforced concrete and plain concrete workin.
(G) Columns PillarsPosts and struts. (1) Square Rectangular Polygonal in
14.0 Materials& Workmanship:
The relevant specifications of item No. 9.1shall be followed for formwork of
ordinary timber planking so as to give a rough finish including centering
shuttering strutting and propping etc.
15.0 Modeofmeasurementand payment:
Therelevantspecificationsofitemno.9.1shallbefollowedexceptthatthecost of form
work finishing and centering shall be included in the item.
Therate shall befor aunitofSq. meter
19Providing formwork of ordinary timber planking so as to give a rough finish
including centering shuttering strutting and propping etc. height of propping
and centering below supporting floor to ceiling not exceeding 4 M. and
removalofthesameforinsitureinforcedconcreteandplainconcreteworkin. (H) (2)
Sides and soffits of Beams Beam Haunchings canti-levers Girders
Bressumers and Lintels exceeding 1M.in Depth..
16.0 Materials& Workmanship:
The relevant specifications of item No. 9.1shall be followed for formwork of
ordinary timber planking so as to give a rough finish including centering
shuttering strutting and propping etc.
17.0 Modeofmeasurementand payment:
Therelevantspecificationsofitemno.9.1shallbefollowedexceptthatthecost of form
work finishing and centering shall be included in the item.
Therate shall befor aunitofSq. meter
21Providing formwork of ordinary timber planking so as to give a rough finish
including centering shuttering strutting and propping etc. height of propping
and centering below supporting floor to ceiling not exceeding 4 M. and
removal of the same for in situ reinforced concrete and plain concrete workin.
(C) Vertical surface such as walls
(any thickness) partitions and the like including attached buttresses & string
course & the like.
18.0 Materials& Workmanship:
The relevant specifications of item No. 9.1shall be followed for formwork of
ordinary timber planking so as to give a rough finish including centering
shuttering strutting and propping etc.
19.0 Modeofmeasurementand payment:
Therelevantspecificationsofitemno.9.1shallbefollowedexceptthatthecost of form
work finishing and centering shall be included in the item.
Therate shall befor aunitofSq. meter
22 Brick work using common burnt clay building bricks having crushing
strength not less than 35 Kg/Sq. Cm. in foundations and plinth in cement
mortar 1:5 (1 cement : 5 fine sand) conventional bricks,
1. Materials: Cement mortar of proportion 1:5 shall conform to M-11.
Conventional bricks shall conform to M-15
2. Workmanship: The relevant specifications of item No. 6.12(A) shall be
followed except tat themasonrywork shall becarriedout byusingconventional
Modeofmeasurementsand payment:
Therelevantspecifications ofitemNo 6.12shallbefollowed.
Therate shall befor aunit ofonecubic meter.
23.Half brick masonry in common burnt clay building bricks having crushing
strength not less than 35 Kg/Sq. Cm. in cement mortar 1:4 (1 cement :
coarse sand) or super structure above plinth level up to floor two level with
conventional bricks.
Materials& Workmanship:
The relevant specifications of item No. 6.30(A) shall be followed for bricks,
wetting of bricks, joints, curing , except that the bricks to be used shall be conventional
bricks instead of modular bricks.
2.0Modeof measurements andpayment:
The limiting dimensions shall no exceed those shown in the plan or as directed.
Any work done extra over specified dimensions shall be ignored.
23 Providing 15mm thick cement plaster in single coat on Rough (Similar)side
of single or half brick walls for interior plastering upto floor two level and
finished even and smooth in (ii) Cement mortar 1:4 (1-cement :4-sand)
Materials & Workmanship :
1.1Therelevantspecificationsofitemno.17.84(I)shallbefollowedexceptthat the proportion of mortar is C.M. 1:4
Modeofmeasurements&payment:
Themodeofmeasurementsandpaymentshallbethesameasforitemno. 17.58 (I).
Therate shall befor aunit of onesq. metre
24 10 mm. cement plaster in single coat on fair side of brick/concrete walls for
interior plastering upto floor two level and finished even and smooth in C.M.
25 Materials&Workmanship :
Therelevantspecificationsofitemno. 17.84(I)shallbefollowedexceptthat the
proportion of mortar is C.M. 1:4 instead of C.M. 1:3.
Modeofmeasurements&payment:
Themodeofmeasurementsandpaymentshallbethesameasforitemno.
Therate shall befor aunit of onesq. metre.
26 20 mm. thickcement plaster in singlecoat on rough sideofsingle or halfbrick
wall for interior plastering upto floor two level, finished even and smooth in
cement mortar 1:4 1 cement : 4 sand).
Materials&Workmanship :
The relevant specifications of item no. 17.59 (II) shall be followed except
thatthe thickness of plastering shall be 20 mm in C.M. 1:4.
Modeofmeasurements&payment:
Therelevantspecificationsof itemno.17.59 (I)shallbefollowed.
Therate shall befor aunit of onesq. metre.
26 Providing 20 mm thick water proof cement plaster using water proofing
powder 1Kg/1bag of cement for all floors on brick / concrete wall work using
water proofing materials in C M 1: 4 ( 1 cement 4 coasrse sand) including
finishing with a flooting coat of neat cement slurry etc complete for all floor.
and shall be guaranteed for minimum period of 10 years after handing over
the completed building by the main contractor to be finished as directed.
Stamppaperguarantee10yearstobefurnishedbeforereceivinganypayment from
27 Workmanship:
Curing : The curing shall be started overnight after finishing of plaster. The
plaster shall be kept for a period of 7 days. During this period, it shall be protected from
28 Modemeasurements&payment:
Therate shall befor aunit of onesq. metre.
27 Providing and applying approved coloured chips 20mm thick STONE
CREAT PLASTER for exterior / interior side on wall up to full heightfrom
ground level consisting of 12mm thick backing coat of CM 1:3 (1 cement :
Bodeli sand) and 8mm thick finishing coat of CM 1:1 (1 cement (Grey /
White / Colour : 1 stone grit (approved coloured chips)) including
providing & fixing 300mm wide strip of chicken net at vertical and
horizontal joints of RCC and masonary including 10mm alluminium
channel for expantion joint / grooves, curing, necessary scaffolding in true
line and level etc. complete as directed by EIC.
Materials&Workmanship :
The relevant specifications of item no. 17.59 (II) shall be followed except that
the thickness of plastering shall be 20 mm in C.M. 1:4.
Modeofmeasurements&payment:
Therelevantspecificationsofitemno.17.59(I)shallbefollowed. The
rate shall be for a unit of one sq. metre
28 Providing and laying Ceramic tiles 6mm thick in flooring treads of steps and
landing laid on a bed of 12mm thick cement mortar 1:3 (1-cement : 3- coarse
sand ) finishing with flush pointing in white cement.
1.0 Materials:TheceramicMaterialisConfirme.
2.0 Workmanship:
Theshallbeprepared asperthedrawingsorasdirectedfor fixing
3.0 Madeofmeasurementand payment:
Therate shallbefor unitof oneSq.mt
29 Providing and laying Ceramic tiles 6mm thick in skrting risers of steps and
dedoon10mm thickcementplaster1:3(1cement:3-coarsesand)andjointed with
white cement slurry
4.0 Materials:TheceramicMaterialisConfirme.
5.0 Workmanship:
Theshallbeprepared asperthedrawings orasdirectedfor fixing
6.0 Madeofmeasurementand payment:
Therate shallbefor unitof oneSq.mt
31 Providing and fixing cast iron steps of size 500mm x 150mm x 22.5mm and
painting with two coats of Anti-corrosive paint etc. complete.
7.0 Madeofmeasurementand payment:
Therate shall befor unit ofEach
32 Providing upto floor two level precast cement concrete jali or grill 1:2:4 mix
(1- Cement : 2- coarse sand : 4-graded stone aggregate 6mm nominal size)
reinforced with 1.6 mm dia. Mild steel wire including roughening,cleaning,
fixing and finishing in cement mortar 1:3 and curing complete. (A) 50mm
8.0 Madeofmeasurementand payment:
Therate shall beforunit ofoneSq.mt
33.P & L 24" x 24" vitrified 8 mm thick tile flooring over 20 mm (average) base
ofcementmortar1:6(1 cement:6 coarsesand)onnew surfaceor fixing on
existing flooring by adhesive material including dismentaling of existing
flooring and jointed with color cement slurry including finised with flush
pointing & cleaning the surface etc. complete for antiskit
9.0 Materials:The24”X24’Materialis Confirme.
10.0 Workmanship:
TheVitrifiedTile shallbepreparedasperthedrawingsor as directedfor fixing
11.0 Madeofmeasurementand payment:
Therate shallbeforunitof one Sq.mt
33 Providing and laying white glazed tiles 6mm thick in skrting risers of steps
and dedo on 10 mm thick cement plaster 1:3(1-cement :3-coarse sand)and
jointed with white cement slurry
12.0 Materials:The24”X24’Materialis Confirme.
13.0 Workmanship:
TheVitrifiedTile shallbepreparedasperthedrawingsor as directedfor fixing
14.0 Madeofmeasurementand payment:
Therate shallbeforunitof oneSq.mt.
34 Kota stone slab (Polished, Kota stone slab) flooring over 20 mm. (average)
thick base of cement mortar 1:6 (1 cement : 6 coarse sand) or lime mortar
1:1.5 laid over and joined with grey cement slurry including rubbing and
polishing complete 25 mm. thick.
Water shall conform M-1. Lime mortar shall conform to M-10. Cement mortar
shall conform to M-11 polished kota stone shall conform to M-49.
36 Workmanship:
Each slab shall be cut to the required size and shape and fine chisel dressed atall
theedges. Thesides thus dressedshall have a full contact ifastraight edgeis laid along. The
sides shall be table rubbed with coarse sand before paving. All angles and edges of the
slabs shall be true square and free form chippings and giving plain surface. The thickness
shall be 25 mm. (Average) as specified inthe item but not less than 20 mm. at any place
Beddingforthekotastoneslabs shall becement mortar1:6 (1cement : 6 coarse
sand) or L.M. 1:1.5 of average thickness 20 mm. as given in the description of the item.
Sub grade shall be cleaned, wetted and mopped. Mortar of the specified mix and
thickness shall be then be spread on an area sufficient to receive one kota stone slab. The
slab shall be washed clean before laying. It shall be laid on top pressed, tapped gently to
bring it in level with the other slabs. It shall be lifted and laid aside. Top surface of the
mortar shall then be corrected by adding fresh mortar at hollows or depressions. The
mortar shall then be allowed to harden bit. Over this surface, cement slurry of honey like
consistency shall be applied. The slab shall then be gently place in position and tapped
with wooden mallet till it is properly pedded in level with and close to the adjoining slab.
The joint shall be as fine as possible. The slabs fixed in the
flooradjoiningthewallshallenternotlessthen10mm.undertheplasterskirting or dado. The
junction between the wall floor shall be finished neatly. The finished surface shall be true
to levels and slopes as directed.
Thefloorshallbekeptwetforaminimumperiod of7days.Sothat beddingand joints
Polishing shall be normally commenced after 14 days of laying the stone slab.
First polishing shall be done with ear borundum stones of 120 grade grit fittedin the
heavy machine and then second polishing shall be done
withcarborundumstoneof220of350gradegritfittedinheavymachine. Watershall be properly
used during polishing. The stone shall then be washed clean with water. When directed
by the Engineer-in-charge wax polish of approved quality shall be applied on the surface
with the help of soft cloth over a clean and dry surface. Then the polish machine fitted
with bobs shall be run over it.
The holes required for Nahni traps, pipes any other fittings shall be made
without any extra cost.
37 Modeofmeasurements&payment:
The rate shall include the cost of all materials and labour involved in all the
operations described above. The Kota stone flooring shall be measured insquare metres
correct to two places of decimal, length and breadth shall be measured correct to a
centimeter and between the finished face of skirting dado or wall plaster and no
deduction shall be made nor extrapaid for anyopeningin floor of area upto 0.1 sq. mt.
Therate shall befor aunit of onesq. metre.
36 Providing and fixing M. S. Grills of required pattern to wooden frames of
windows frames of windows etc. with M. S. Flats at required spacing and
frame alround, square or round bars with round headed bolts and nuts or by
screws : Plain Grill.
15.0 Materials:ThestructuralsteelshallconformtoM-22.
16.0 Workmanship:
The M. S. Grill shall beprepared as per the drawings or as directed for fixing to
wooden frames of windows etc.
The grill shall be fabricated to the designs and patterns shown in the drawings
and the weight shall be as directed and the joints shall be riveted or welded as shown in
the plan or as directed. The grill so formed shall be fixed into the
framesofthewindowsetc.,beforetheyareerectedinposition.Theoutsidestrip frame of the grill
shall be housed to its full thickness into the recess cut into the frame of the windows etc.
The grill shall be fixed to the frame with number of bolts and nuts of screws viz. bolt
nut/screw per 30 cm. Of the length of outer strip subject to a minimum of 2 nos. on each
side of the frame or as indicated in the drawings or as directed.
The bolts and nuts or screws shall be counter sunk and shall be fixed with the
top of their heads flush with the face of frame strips.
17.0 Modeofmeasurementand payment:
No payment shall be made for weight of screws, bolts, nuts etc. Only weight of
grill shall be paid.
Therate shall beforunitof oneKg.
37Structural steel work ( Confirming to IS 4923- 1997) riveted, bolted or welded in
builtup for all type sections, in framed work, including cutting, hoisting,
fixinginpositionandapplyingaprimingcoatofapprovedsteelprimerall
completeasperthestructuraldesignsanddirectionsofEngineerin charge.Column ( 122 x
The structuralsteelworkshallconformtoM-22.Redleadpaintprimer shall conform to I. S. : 102-1962.
a. The steel sections as specified or required shall be cut, square and to correct
lengths, as per drawings and design. The cut ends exposed to view shall be
finished smooth. No. two pieces shall be welded or other wise jointed to make
up the required length of member, except as indicated in the drawings or as
directed. All straightening and shaping to form shall be done by application of
pressure and not by hammering. Any bending or cutting shall be carried out in
such a meaner as not to impair the strength of the metal. All operations shall be
done in cold state unless otherwise directed/permitted.
b. Steelrivetedorboltedinbuiltupsections,frame work.
i. The steel structure as shown in the drawings or as per direction of the Engineer-
in-charge shall be laid out one level platform to full scale and to full size or in
parts.Asteeltapeshallbeusedformeasurementstoensuremaximumaccuracy.
ii. Woodentemplates12mmto19mmthickormetalsheettemplateshallbemade to
correspond to each connecting gussets plate and rivet holes shall beaccurately
marked on them and drilled. The template shall be laid on the steel members,
and holes of the steel members shall also be marked for cutting. The baseof
steel columns and the position ofAnchor bolts shall becarefullyset out.
iii. All stiffeners shall be formed bypressure and where practicable, the metal shall
not be cut and welded in making these. In major works or where so specified
shopdrawings givingcompletedetailsand informationforthe fabricationofthe
component parts of the structure, includinglocation type size, length and details
of rivets, bolts, or weld shall be prepared in advance of the actual fabricationand
as approved. The drawings shall indicate the shop and field rivets andbolts. The
steel member shall be distinctly marked or stenciled with paint with the
identification mark as given in the shop drawings.
Thebars shall bethickened at the ends, so as to provideforscrewed threads and gradually tapered off to meet their
normal section.
Great accuracyshallbeobservedin fabricationof variousmember, sothatthese can be assembled without being
unduly packed, strained or forced into position and when built up, shall be true and free form twist, bniks,
buckles, or open joints. Beforemaking holes individual members for fabrication, the steel work
intendedtoberivetedorboltedtogethershallbeassembledorclampedproperly and tightly so as to ensure close
abutting or lapping of the different members. All stiffeners shall bear tightly both at top and bottom without
being drawn or caulked. The abutting joints shall be cut or dressed true and straight and fitted close together.
Web splice plates and filters under stiffeners shall be cut to fit within 3 mm or flange angles, web plates of
girders shall have not cover plates, shall have their ends flush with the top of angles forming the flanges unless
otherwise required. The web plates when spiced shall have clearance of more than 6 mm.
The erection, clearance for cleared ends of members connecting steel to steel shall preferably be not greater than
1.5 mm. The erection clearance at the ends of beams without web cleats shall to be more that 3 mm at each end
but where for a practical reason greater clearance is necessary, suitably designed seating shall be provided.
Pins and rollers shall be accurately turned to gauge. These shall be straight and smooth and free from flows. The
roller bearing shall be provided with adequate arrangement for holding the girders or truss resting on it. In
columns caps and bases,theendsofshaftstogetherwiththeattached gussetsangles,channels etc., after riveting
together shall be accurately mechanized so that the partsconnected buttagainst eachother over the entiresurfacesof
contract connecting angles or channels shall be fabricated and placed in position with greater accuracy so that
they are not unduly reduced in thickness by machining.
The ends of bearing stiffeners shall be machanised or ground to fit tightly both at the top and bottom. All holes
shall generally be drilled to the required sizeand at the required size and at required position. Sub punching shall
be permitted, provided it is done 3 mm or less in diameter and remade thereafter to the required size. The holes
for rivets and bolts shall be larger by 0.4 to 6 mm than the nominal diameter of rivets or black bolts depending up
on the diameter of rivets.
Holes shall have their axis perpendicular to the surface bored through. The drilling or reamering shall be free
form butts, and the holes should be clean and accurate. Holes for counter shunk bolts shall be made in such a
manner thattheir heads fit flush with the surface after fixing.
The fabrication work shall be completed in workshop as far as it is practicableto do so. Site joints shall be done
with rivets and fitted bolts or black bolts, as shown in the drawings or as directed. Generally the following
principles shall govern the use of rivets turned and fitted bolts, and black bolts.
(i) Rivets and turned and fitted bolts shall be used where the connection is suchthat
slip under load has to be avoided.
(ii) Black bolts may be used very sparingly where a force is carried through a
connection without impact, vibration or reversal of stresses.
iv. Riveting: The parts assembled for riveting shall be in close contact with
eachother and the bearingstiffeners shall bear tightlyboth at top and bottom
without beingdrawnorcaulked.Memberstoberivetedshallbeproperlypinnedor
boltedandrigidlyheldtogetherwhileriveting.Driftingofholesshallnotbe permitted
except to draw the parts together and the drifting tools so used shallhave
maximum diameter not exceeding the nominal diameter of rivets or bolts.
Drifting done during assembling shall not distort the metal or enlarge the holes.
The shanks of rivets shall project beyond the plate surface sufficiently so as to
fill the hole thoroughly and from the required head after riveting.
The riveting shall be done by hydraulic or pneumatic process. However where such facilities are not available,
hand riveting may be permitted. The rivet shall be heated red -hot, care being taken to control the temperature of
heating so as not to burn the steel. Riveting of diameter less than 10 mm may be fitted cold. Rivets shall be of
heat finish with heads full and of equal size. All loose, burnt or badly formed rivets with concentric or deficient
heads shall be cut out and replaced. The heads of rivets shall be central to shanks and shall grip the
assembledmembersfirmly. In cuttingoutrivets, careshallbetakenso asnotbe injure the assembled, members,
caulking or recouping shall not be permitted.
For testingrivets, hammer weighingapproximately0.25 kg. shall be used of the rivets shall be tapped, slack rivets
will give a hollow sound and a jar.
Allrivetheads shall bepainted withredlead paintwithinaweekoftheir fixing.
v. Bolting all bolt heads and nuts shall be hexagonal and of equal size unless
specified otherwise. The screwed heads shall conform to I.S. : 1363:1960 and
the threaded surface shall not be tapered.
The bolts shall be of such length so as to project two clear threads the nuts,when fixed in position and these shall
fit in the holes without any shakes. The nut shall be fit in the threaded ends of bolts properly. Where turned and
fitted bolts are required to be used in place of rivets they shall be provided with
washersnotlessthat6mmthicksothatthenutwhentightenedshallnotbearon theunthreaded bodyofthebolt. Tapered
washers shall beprovided for all heads and nuts bearing on leveled surfaces. The threaded portion of the bolts
shall not be within the thickness of the parts bolted together. The faces of the bolt and nuts abutting against steel
members shall be machine finished. Where there is a risk of the nut beingremoved or becomingloose due to
vibrations or reversal of stresses, these shall be secured from slackening by the use of locknuts, spring washers,
cross cutting or hammering down of threads as directed.
Bolts,nutsandwashersshallbethoroughlycleanedanddippedindoubleboiled linseed oil before use. The whole
steelwork shall be painted with a coat of priming coat of red lead, as per relevant specifications of painting.
Modeofmeasurementandpayment:
c. Thesteelworkshallbemeasuredingeneralas under.
(a) All work shall be measured on the basis of finished dimensions as fixed at site
and measured net unless specified otherwise.
(b) The weight of steel sections, steel strips in finished work shall be calculated
from standard weight on the same basis on which steel is supplied to the
contractor by department or those given in relevant I. S. if steel is arranged by
the contractor.
(c) TheweightofsteelplatesandstripsshallbetakenfromrelevantI.S.basedon
7.85 kg/sq. meter for every millimeter sheet thickness if steel is supplied by the contractor, otherwise the weight
shall be calculated on the basis on which steel is supplied to the contractor by department.
(d) Unless otherwise specified weight of clearest, brackets, packing pieces, bolts,
nuts, washers, distance pieces, separators, diaphragm gusset (taking over all
square dimensions) fish plates etc. shall be added to the weight of respective
(e) In riveted work allowance to be made of weight of rivet hands. No deductions
shall bemade for rivet or bolt holesexcludingholes for anchoror holding down
(f) For forged steel and steel casting weight shall be calculated on the basis of
(g) Unless otherwise specified an additional of 2.5 percent of the weight ofstructure
shall be made for shop and site rivet heads in riveted steel structure.
(h) Unless otherwise specified no allowance shall be made for the weld metal in
case of welded steel structure.
(i) Dimensions other than cross sections and thickness of plates shall be measured
to nearest 0.001 m
(j) Milltoleranceshallbeignoredwhenweightisdeterminedbycalculation.
d. The rate includes cost of all material, labour, erection, hoisting, scaffolding
protective measure, required for proper completion of the item of work. This
shall also included conveyance and delivery handling, loading, unloading and
storing etc. required for completing the item described above including
necessary wastage involved.
e. Therate shall befor aunit of oneKg.
38 Providing and fixing of Self Supported Structure Less PROFLEXRoofing
systems by M & B Engineering Ltdor equivalent with proper overlappingand
seaming b/w different sheets without making holes or preventing the
overturning the roof by wind addition made up from superior quality,
structural grade steel. Base metal width 912 mm, Steel Grade : Grade D and
Thickness 0.80 mm BMT, 0.85 mm APT with tolerance of +/- 0.04 mm,
Regular Modified Polyster Imported Color Coated Galvalume Steel having
Profiled width of 625 mm +/-10mm.Design, supply, & fabrication of self
supported single span arch roof fabricated from mechanically seamed
manufactured by American Hydraulic Machines to profiles of Imported
Galvalume Cold Rolled Structural Steel coils as per standard ASTM A792,
Steel Sheet, Aluminum-Zinc Alloy Coated by Hot-Dip Process,Alloy Coating
AZ-150(Aluminium-55%, Zinc-43.5% & Silicon 1.5%), Yield strength:
MPa, Paint coating: Regular modified polyester, Top coat of painting:
micron minimum (colour 20 micron and primer 5 micron).Bottom coat of
painting: 12 micron minimum (colour 7 micron and primer 5 micron) using
make of ThyssenKrupps, Germany/Dongbu Steel Co. Limited, Korea/Corus
Steels, U.K./ Union steel(Dongkuk)Korea/YjehphufEnterprises Ltd. Taiwan
roofing systems including corrugation from single piece raw material
eliminating overlaps ridges & making leak proof water tight structure. The
work should be carried out by specilialize and approved agency only. The rate
of item is including fitting as per standard specification.
1.0 Materials:Proflex.sheetsshallconformto.
2.0 Modeofmeasurements&payment:
Therate shall befor aunit of onesq. metre.
43. Providing and fixing standared extruded of alluminium section of size
63mm x 38.10mm x 1.2mm @ Wt. 0.643 Kg/mt with colour anodized
alluminium frame for ventilation with 5 mm thick frosted glass as details
etc complete for Ventilation
3.0 Modeofmeasurements&payment:
Therate shall befor aunit of onesq. metre.
45 Providing and fixing flush door both sides laminated and I.T.W. beading all
around by usingI.T.W.frame 120 m.m. x80m.m.. shutter fabricatedfrom35 mm
thick solid core malemine faced three layered pre laminated flat pressed wood
based exterior grade bonded BWP/BWR synthetic resin having stamped
IS12823 grade Itype II includingthree coatsoflacquer polishingto exposed
woodensurfacesandStainlesssteeldecorativetypedesignsfixtures/fastening
etc.including I.T.W. triangular batten patti of size 30m.m.x30m.m.etc. as per
architectural detailed drawing and as directed by engineer in charge.
1.0 Materials:Woodinframes shallconformto M-29
2.0 Workmanship:
Theitemcoverstherequirementofframesfordoors,windows,clerstory windows
their supply and fixing.
All members of the frames shall be exactlyat right angles. The
right angle shall be checked from inside surface of the
respective members.
All member of frames shall straight without any warp or bow and
shall have smooth surface well planed on the three sides
exposed at right angles to each other. The surface touching the
wall may not be planed unless it is required in order to
straighten up the member or to obtain the overall size within
the tolerances specified.
Frame shall havedovetail joints. When clerestory
windowsareincluded, it shall be provided by having full length
one piece post for door or windows and clerestorywindow
extendingthe frameon top at thehead to the required extent.
Horns shall not be provided in the head of the frame. When
No. still are providedtheverticalpostsoftheframeinthe
groundfloorshallbeembeddedin the sill masonry for 10 cm in
upper floors, their vertical posts shall be fixed in the floor or
masonry by forming notches 10 mm deep. Slight
adjustmentspacing as necessary shall be done to have the hold
fasts in the joints ofmasonry course. The frame shall be
created in position and held plumb with strong support from
both sides and built in masonry as it is being built. The
transom shall be through tenoned in to the mortices of the
jamb post to the full width of the jamb post and the thickness
of the tenon shall be not less than 15 mm.
Tolerance: Unless speciallymentioned otherwise tolerance of ±1.5mm shall be
allowed for each wrought face.
The tenons shall be closely fitting into the mortices and suitably pinned with
wood dowels not less that 10mm. dia meter. The depth of rebates for housingthe shutter
shall be as shown in the detailed drawing or as directed.
Thecontactsurfaceoftenonandmorticeshallbe treatedbeforeputtingtogether with
an adhesive ofapproved make.
Minimum number of three hold fasts shall be fixed on each side of door and
windowsframes,oneat thecenterpoint and theothertwo at 30 cm fromthetop and the
bottom of the frames. In case of windows and ventilators frames whose height is less 1 M
two hold fasts on each side shall be fixed at quarter points of the frames. The size of each
hold fast shall be 300 x 25 x 6 mm and of mildsteel with split end. The hold fast shall be
fixed with screws to frames.
Mild steel hold fasts shall be protected with a coating of coal asphalt tar. The
surfaceofframeabuttingthemasnoryorconcretefacesshallbeproperlytreated by applying a
coat of approved coating.
3.0 Modeofmeasurements&payments:
The linear dimensions shall be measured correct up to 1 cm. The quantity shall
be worked out correct to 2 places of decimals of a Cu. m.
Therate shall befor aunit of 10cu dia.
46 Providing and fixing FRP frame size 125x65 mm and 35mm thick FRP
shutter with wood grain raised panneled design finish shutter having extra
reinforcementon sides &edges in Gel coatfinish. Thecoreof theshutter&
frame is to be filed up with injected polyurethene foam done in situ
alongwith embedded wooden pieces for stiffening & also taking hinges &
fintures. The whole FRP frame & shutter is to be water proof weather
proof, termite proof & resistance to mild acid/alkali. Rates are to be
inclusiveofS.Shingewithfastenersleeve& alluminium fixtures & fastenings.
5.0Modeof measurements &payment :
Therate shall befor aunit of onesq. metre
47 Providing & LayingM200 grade concrete trimix using P21 (water reducing
concrete admixture at 100 ml per bag of cement & recon 3 s fiber at 125 gm
per bag of cement including carrying out vaccum dewatering and power
floater treatment in floors well compacted mechanically vibrated finish to
require levelsmaking C channel 75 x 75 mm required to maintain levelslope
and thickness of the concrete road leveling of placed concrete with surface
vibrator and finishing with power floater & trowel light broomingthe surface
& including cutting & filling of expansion joint as directed by Engineer in
(iii) Modeofmeasurements&payment:
(a) Therate shall befor aunit of onesq. metre
48 Providing and laying rubble soling, 23 cm thick, in a compact manner,
foudation,road,footpathetc.using200to230mm.cutsizestones,covering and
levelling the surface with a layer of murrum after filling the voids with
smaller sized stones or stone chips, including watering, ramming well and
consolidating each layer, as directed
(iv) Modeofmeasurements&payment:
(a) Therate shall befor aunit of oneCubicmetre
49 Providingandfixingpre-cast concrete kerb stoneofgray cementbasedconcrete
block 30cm length,30cm height and 15cm thick of M250 grade concret as per
approved design and including excavation for fixing in proper line and
level,filling the joint with C:M 1:3 (1cement:3fine sand) etc complete
7.0 Precast C.C. Block: (1) Water shall confirm to toM-1, (2) Cement shall
conformto M-3, (3) Sand shall conform to M-6, (4)Mortar shall conformto M-
11, (5) Aggregates shall conform to M-12, (6) Shuttering shall conform to M-
8.0 ConstructionofPrecastC.C.Block:
9.0 Precast C.C blocks shall be made from M-250 grade of cement concrete. The
concrete shall conform to relevant IS code and the size shall be as specified in
drawing and the surface shall have fair finish. The strength of the C.C. Block
shall have compressive strength of 25N/mm2 after 28 days. It shall fix on road
surface/on ground with necessary excavation and shall be joined in C.M.1:3 to
required line and level. The
shapeofblocksshallbeofanyshape/shapesapprovedbyEngineer-in-charge.Cement
concrete block of approved design of size 300 x 300 x 150 mm of the make
approved by engineer-in-charge.
10.0 Clearingthe site:
11.0 The site cm which the structure is to be built, shall be cleared and all
obstructions, loose stone, materials and rubbish of all kind, bush, wood andtrees
shall be removed as directed. The materials so obtained shall be propertyof the
Government and be conveyed and stacked as directed within 50 M. lead.
Therootsofthetreescominginthesidesshallbecutandcoatedwithhot
asphalt.Therateofsiteclearanceisdamagedbeincludedintherateof earthwork for which no extra will be paid.
12.0 Settingout:
13.0 After clearing the site, the center lines will be given by the Engineer-in charge.
The contractor shall assume full responsibility for alignment, elevation and
dimension of each and all parts of the tractor shall assume full responsibility for
alignment elevation and dimension of each and all parts of the work. Contractor
shall supply laborer’s, materials., etc. required for setting out the reference
marks and bench marks and shall maintain them as long as required and
14.0 Excavation:
15.0 The excavation, in foundation shall be carried out in true line and level and shall
thewidthanddepthasshowninthedrawingsorasdirected.Thecontractorshalldothe
necessaryshoringandstruttingor providingnecessaryslopestoasafeangle,athisown
cost. The payment for such precautionary measures shall be paid separately if
not specified. The bottom of the excavated area shall be 1evelled both
longitudinally and transversely as directed by removing and watering as
required. No earth filling will be allowed for bringing it to level, if by mistake
or any other reason excavation is made deeper or wider that shown on the plan
or directed, The extra depth or width shall be made up with concrete of same
proportion as specified for the foundation concrete at the cost of the contractor.
The excavation up to 1.5 m. depth shall be measured under this item.
16.0 Disposaloftheexcavatedstuff
17.0 The excavated stuff of the selected type shall be used in filling the trenches and
plinth or leveling the ground in layers including ramming and watering etc. The
balance ofthe excavated quantity shall be removed by the contractor from the
site of work to a place as directed with lead up to 50 M. and all lift.
18.0 Fixingof Blocks:
19.0 Cement concrete blocks of approved shape shall be fixed in line & level. The
alignment of C.C blocks shall be got approved before fixing at site of work.
Blocks should be laid commencing from one end of the edge strip and proceed
towardstheotherend.Theblockscanbeplacedtodifferentbondsorpatternsas directed
by Engineer in Charge. With the help of gauges, the joint width specification (2
to 4mm) should be checked in the first few meters, where it should be ensured
that the block alignment is correct. To start with, full blocks should be used;
only subsequently, cutting and in filling at edges be permitted. Under no
Circumstances should the blocks be forced or hammered into the bedding at this
stage of lying. For cutting paving blocks, hydraulic or mechanical block cutters,
or power saws are used. Cut units less than 50mm minimum dimension should
not be used. Where space does not permit use of a larger segment, use premixed
concrete or sand – cement mortar instead. The blocksshall belaid in lineand
level and to required gradient. Theblockshall be jointed with cement mortar 1:1
(1 cement: 1 coarse sand) as directed by Engineer-in-charge.
20.0 Modeofmeasurementsand payment:
21.0 Measurement should be inRunning Meter (Rmt) up to two decimal. The rate
should be including all above activity and incidental activity to be carried out to
complete the work in all respect. No extra payment for transportation, loading,
unloading from stock yard should be paid.
50 Providing and fixing pre-cast Rubber Dye/steel dye inter locking concrete
block 60 mm thick with grade of concrete M30 pneumatic
compressed/vibrated mechanically and as per approved design conforming
to IS 15658:2006 including 35mm sand layer for levelling and filling the
jointwithsandinproperlineandlevelasperguidlinesofIRC:SP63-2018
Providing and fixing High strength high finish on higher Vibropress Type machne inter locking concrete paving
Blocks 60 mm thick with grade of concrete M-300pnumatic compressed by automation mechanically pressed and as
per approved design including 75 mm sand layer for levveling and filling the joint with sand in proper line and level.
HighstrengthhighfinishonhigherVibropressTypemachneinterlockingconcreteBlock
60mmthickwithgradeofconcreteM-300pnumaticcompressedbyautomationmechanically
pressed and as per approved design
Water shall confirm to toM-1, (2) Cement shall conform to M-3, (3) Sand shall conformtoM-
6,(4)MortarshallconformtoM-11,(5)Aggregatesshallconformto M- 12, (6) Shuttering shall conform to M-26.
Laying should be done on 75 mm Thick Sand completed Bed. This work shall be carried out in the central median
and/or along the footpaths in conformity with the lines, levels and dimensions as specified in the drawings.
The paver blocks should be High strength high finish on higher Vibropress Type
machneinter locking concrete Block 60 mm thick with grade of concrete M-250
pnumatic compressed by automation mechanically pressed and as per approved
design at appropriate plant having facility for applying high pressure and controlled
Sr. Parameters MinimumRequirements
1 PercentagewaterAbsorption Averagenotover6%
2 CompressiveStrength Averagenotlessthan450kg/cm2
3 Tensile Splitting Strength (as per EN Averagenotlessthan3.6Mpa
4 Sveragewearinthickness–Abrasion ConfirmingtoGrade‘H’ofEN
5 Toleranceinsize(Length+Breadth) + 1.5 mm
6 Thicknessofwearinglayer Notlessthan5mm
7 48ToleranceinthicknessofBlock + 3 mm
8 49Colour UVLightresistantfastcolours
Necessary testing shall be carried out to maintain the required compressive strength.
To ensure durability, the average water absorption in a block should not exceed 5%.
In situations, where parts of blocks are to be used e.g. around manholes, the block
should be purpose cut at site.
The Bedding sand should be free of deleterious materials. The thickness of the
bedding layer should be as shown in the drawing and should be of uniform
thickness. The gradingof the bedding sand should be as under:
ISSieveSize PercentPassing
600 micron 25-60
300 micron 10-30
150 micron 0-15
JointFillingSand:
The gaps in between two paving blocks (not more than 3mm) shall be filled
relatively finer than the beddingsand.Thejoint fillingsand should beas dryas
possible. The gradation for the joint filling sand is as under.
ISSieve Size PercentPassing
600 micron 60-90
300 micron 30-60
150 micron 15-30
The construction of block pavement involves preparation of subgrade, sub base and base course layers, bedding sand
and finally the laying of blocks.
Preparationof Subgrade:
This is the foundation layer on which the block pavement is constructed. The water table should be at a minimum
depth of 600mm below the sub-grade. Sub-grade should be compacted in layers of 150 or 100 mm thickness as per
IRC: 36- 1970.The prepared sub grade should be graded and trimmed to a tolerance of +/- 20 mm of the design levels,
and its surface evenness should have a tolerance of within 15 mm under a 3 m straight edge.
Baseand SubbaseCourse:
Base and Sub base courses are constructed in accordance with standard procedure
containedintherelevantIRCspecificationslikeIRC:37-2001.Thematerialshallbe evenly laid in required thickness as
specified in drawing and shall be watered, and consolidated to provide proper level and grade.
PlacingandScreeningofBeddingSand:
The thickness of the sand bed after compaction should not be more than 75 mm Beddingsandshouldnot beused
tofilluplocaldepressionsonthesurface ofabase or sub base. The depressions should be repaired in advance before
placing sand. Sand to be used should have uniform moisture content of 6 to 8%.The processed sand is spread with the
help of screed boards to the required thickness. The Screed boards are provided with nails at 2-3m apart which when
dragged gives the desired thickness. The sand is subsequently compacted with plate vibrators weighing 0.6 tons
ormore. Level checks shall be carried out on a gridpatternto establish that the desired level is achieved. Local
correction can be done either by removing oradding extra sand followed by leveling and compacting the layer.
Layingof Blocks:
Blocks should be laid commencing from the edge strip and proceed towards the inner side. The blocks can be placed
to different bonds or patterns as directed by Engineer in Charge. With the help of gauges, the joint width specification
(2 to 4mm) should be checked in the first few square meters, where it should be ensured that the block alignment is
correct. To start with, full blocks should be used; only subsequently, cutting and in filling at edges be permitted. Under
no Circumstances should theblocksbe forced orhammered into the bedding at this stageof lying. For cutting paving
blocks, hydraulic or mechanical block cutters, or power saws are used. Cut units less than 50mm minimum dimension
should not be used. Where space does not permit use of a larger segment, use premixed concrete or sand – cement
mortar instead. The blocks shall be laid in line and level and to required camber.
For compaction of the bedding sand and the blocks laid over it, vibratory plate compactors are used over the laid
paving units; at least two passes of the vibratory plate compactor are needed. Such vibratorycompaction should be
continued till the top of each paving blocks is level with its adjacent blocks.
Jointsfilling:Thejointsshouldbecompletelyfilledwithdrysand.Theoperationof joint filling comprises of spreading a thin
layer of the joint filling sand on the block surface and workingthe sand into each joint bybrooming. Followingthis,
passes of heavy plate compactor are applied to facilitate fine sand to fill the joints. The sand should be broomed or
spread over the surface with a small surcharge.
Until all the joints are completely filled, no usage should be permitted over the block pavement. The block pavement
should be inspected frequently, to ensure that anyincompletely filled joints, exposed byusage and/or weather are
promptlyfilled. Such frequent inspection should be continued till dust and detritus from theroadway tightens the
surface of the joints.
Measurementsfor payments:
The work of Paver block shall be measured as finished work in Square Meter. Fixing paver blocks in required shape
and pattern and filling joints and compacting using all tools, equipment materials and labour. The contract rate shall be
include carrying out all required operations to complete this item of work, including cost of labour, materials, tools &
51 Providing,laying,spreadingandcompactingWetMixMacadam(asper
table400-10and400-11)ofwellgradedstoneaggregatetospecification
including premixing the Material with water at OMC in mechanical mix
plant as per approved design mix, carriage of mixed material by Tipper to
site, laying in uniform layers with motor grade/Front end Loader/paver
finisher, in sub base/base course on a well prepared under base and
compacting with vibratory roller to achieve the desired density including
lighting, guarding, barricating and maintenance of diversion etc. (MoRTH
specification : Clause 406) by mechanical means.
Providing, laying, spreading and compactingWet Mix Macadam (as per table 400 - 10 and 400 - 11) of well graded
stone aggregate to specification includingpremixingtheMaterialwithwateratOMCinmechanicalmix plantasperapproved
design mix, carriage of mixed material by Tipper to site, laying in uniform layers
withmotorgrade/FrontendLoader/paverfinisher,insubbase/basecourse onawell prepared under base and compacting
with vibratory roller to achieve the desired density including lighting, guarding, barricating and maintenance of
diversion etc. (MoRTH specification : Clause 406) by mechanical means.
WETMIX MACADAM:
This work shall consist of laying and compacting clean, crushed, graded aggregate and granular material, premixed
with water, to a dense mass on a prepared sub grade/subbase/base or existing pavement as the case may be in
accordance with the requirements of the these Specifications. The material shall be laid in one or more layers as
necessary to lines, grades and cross-sections shown on the approved drawings or as directed by the Engineer.The
thickness of a single compacted Wet Mix Macadam layer shall not be less than 75 mm. When vibrating or
otherapproved types of compacting equipment are used, the compacted depth of a single layer of the sub-base course
may be increased to 200 mm upon approval of the Engineer.
AggregatesPhysicalrequirements:
Courseaggregatesshallbecrushedstone. Ifcrushedgravel/shingleisused,notless than 90 percent by weight of the
gravel/shingle pieces retained on 4.75 mm sieve shall have at least two fractured faces.
Grading requirements:
Theaggregatesshallconformtothegradinggiven inTablebelow
TABLE7.6:GradingRequirementsofAggregatesforWetMixMacadam
PercentbyweightpassingtheIS sieve
IS Sieve Designation
600.00 micron 8-22
75.00 micron 0-8
Materials finer than 425 micron shall have Plastically Index (PI) not exceeding 6. Thefinal
gradationapprovedwithintheselimitsshallbewell graded from coarseto fine and shall not vary from the low limit on one
sieve to the high limit on the adjacent sieve or vice versa.
ConstructionOperationsPreparationofbase:
Prior to laying of the wet mix macadam base the granular sub-base already laid
shouldbepreparedbyremovingofextraneousmaterial,lightlysprinkledwithwater and rolled with two passes of 80 –
kN smooth wheeled roller.
Provisionoflateralconfinementofaggregates:
While constructing wet mix macadam, arrangement shall be made for the lateral
confinement of wet mix. This shall be done by lying materials in adjoining
shoulders along with that of wet mix macadamlayer and constructing the adjoining
shoulder with approved material along with that of the wet Mix Macadam layer.
Preparationofmix:
Wet Mix Macadam shall be prepared in an approved mixing plant of suitable capacity having provision for controlled
addition of water and forced/positive mixing arrangement like pug mill or pan type mixer of concrete batching plant.
For small quantity of wet mix work, the Engineer may permit the mixing to be done in concrete mixers.
Optimum moisture for mixing shall be determined in accordance with IS: 2720 (Part-8) after replacing the aggregate
fraction retained on 22.4 mm sieve with material of 4.75 mm to 22.4 mm size. While adding water, due Allowance
shouldbe made for evaporation losses. However, at the time of Compaction, water in the wet mix should not vary from
the optimum value by more than agreed limits. The mixed material should be uniformly wet and no segregation should
Spreadingofmix:
Immediately after mixing, the aggregates shall be spread uniformly and evenly upon the prepared sub grade/sub-
base/base in required quantities. In no case should these be dumped in heaps directly on the area where these are to be
laid nor shall their hauling over a partly completed stretch be permitted.
The mix may be spread either by a paver finisher or motor grader. For portions where mechanical means cannot be
used, manual means as approved by the Engineer shall be used. The motor grader shall be capable of spreading the
material uniformlyalloverthesurface.Itsbladeshallhavehydrauliccontrolsuitablefor
initial adjustments and maintaining the same so as to achieve the specified slopeand grade.
Thepaverfinishershallbeself-propelled,havingthefollowingfeatures:
i. Loadinghoppers andsuitable distribution mechanism
ii. The screed shall have tamping and vibrating arrangement for initial
a. to the layer as it is spread without rutting or otherwise marring the surface
iii. The paver shall be equipped with necessary control mechanism so as
to ensure that the finished surface is free from surface blemishes.
The surface of the aggregate shall be carefullychecked with templates and all high or low spots remedied by removing or
adding aggregate as may be required. The layer may be tested by depth blocks during construction. No segregation of
larger and fine particles should be allowed. The aggregates as Spread should be ofuniform gradation with no pockets of
fine materials.
After the mix has been laid to the required thickness, grade and cross fall/camber the same shall be uniformly compacted,
to the full depth with suitable roller. If the thicknessofsinglecompactedlayerdoesnotexceed 100mm,asmoothwheelroller of
80 to 100 kNweight may be used. For a compacted single layer upto200 mm, the
compactionshallbedonewiththehelpofvibratoryrollerofminimumstaticweight of 80 to 100 kN or equivalent capacity roller.
The speed of the roller shall not exceed 5 km/h In portions having unidirectional cross fall/super elevation, rolling shall
commence from the lower edge and progress gradually towards the upper edge. Thereafter, roller shouldprogress parallel to
the centre line of the road, uniformly over-lapping each preceding track by at least one third width until the entire surface
has been rolled. Alternate trips of the roller shall be terminated in stops at least 1 m away from any preceding stop. In
portions in camber, rolling should begin at the edge with the roller running forward and backward until the edges have been
firmlycompacted. The roller shall then progress graduallytowards the centre parallel to the centre line of the road uniformly
overlapping each of the preceding track by at least one-third width until the entire surface has been rolled. Any
displacement occurring as a result of reversing of the direction of a roller or from any other cause shall be corrected at once
as specified and/or removed and made good. Along forms, kerbs, walls or other places not accessible to the roller,the
mixture shall be thoroughly compacted with mechanical tampers or a plate compactor. Skin patching of an area without
scarifying the surface to permit proper bonding of the added material shall not be permitted.
Rollingshould not bedonewhen thesub grade is soft or yieldingor when it causes a wave-like motion in the sub-base/base
course or sub grade. If irregularities develop during rolling which exceed 12 mm when tested with a 3 meter straight edge,
the surface should be loosened and premixed material added or removed as required before rolling again so as to achieve a
uniform surface conforming to the desired grade and cross fall. In no case should the use of unmixed material be permitted
to make up the depressions. Rolling shall be continued till the density achieved is at least 98 per cent of the maximum dry
density for the material as determinedbythemethodoutlinedinIS:2720(Part-8).Aftercompletion,the
surface of any finished layer shall be well-closed, free from movement of compaction equipment or anycompaction planes,
ridges, cracks and loose material. All loose, segregated or otherwise defective areas shall be made good to the full thickness
of the layer and re compacted.
Settinganddrying:
After final compaction of wet mix macadam course, the road shall be allowed todry for 24 hours.
Opening toTraffic:
Preferably no vehicular traffic of any kind should be allowed on the finished wetmix macadam surface till it has dried and
the wearing course laid.
Surface FinishandQualityControlof Work
Surface evenness:
ThesurfacefinishofconstructionshallconformtotherequirementsofClause 7.15.
Qualitycontrol:
Control onthequalityofmaterials and worksshall beexercisedbytheEngineerin accordance with Section
RectificationofSurfaceIrregularity:
Where the surface irregularity of the wet mix macadam course exceeds the permissible tolerances or where the course is
otherwise defective due to sub grade soil getting mixed with the aggregates, the full thickness of the layer shall be scarified
over the affected area, re-shaped with added premixed material orremoved and replaced with fresh premixed material as
applicable and re compacted in accordance with Clause 7.4.3. The area treated in the aforesaid manner shall not be less
than 5 m long and 2 m wide. In no case shall depressions be filled up with unmixed and ungraded material or fines.
ArrangementforTraffic:
Duringthe period of construction, arrangement of traffic diversion shall be done as per the direction of Engineer.
MeasurementsforPayment:
Wet Mix Macadam shall be measured as finished work in position in cubic meters. The protection of edges of Wet Mix
Macadam extended over the full formation as shown in the
DrawingshallbeconsideredincidentaltotheworkofprovidingWetMix Macadam and as such no extra payment shall be made for the
The Contract unit rate for Wet Mix Macadam shall be payment in full for carrying out the required operations in One
Cubic.Meter,including full compensation for:
(i) Makingarrangementsfortrafficdiversions.Exceptfor initial
treatmenttoverges,shouldersandconstructionof diversions;
(ii) Furnishingallmaterialstobeincorporatedinthework ingall
includroyalties,fees,rentswherenecessaryandallleadsand
(iii) All labour, tools, equipment and incidentals tocomplete the work to
theSpecifications;
Carrying out the work in part widths of road where
directed;and Carrying out the required tests for quality control
52 Applyingtwo coats of putty & two coats of primer of approved brand and
manufacture onnewwallsurfacetogiveanevenshadeincluding
thoroughlybrushingthesurfacefreefrommortardroppingandother foreign
matter and sand papered smooth.
WatershallconformtoM-1andAsianacrylicPuttyandPrimeroras equivalent make approved by Engineer In charge.
Preparationofsurface:
The surface shall be thoroughly cleaned of all dust, dirt, mortar dropping and other
foreign matter before white wash is to be applied. The surface spoiled by smoke
soot shall be scrapped with steel wire brushes or steel scrapers or shall be rubbed
burntsurkhiorbrickbats.Thesurfaceshallbethenbroomedtoremovealldustanddirt and
shall be washed with clean water. Oil or grease spots shall be removed by suitable
chemical.Smoothsurfacesshall berubbedwithwirebrushesall unsoundportionof the
surface plaster shall be removed to full depth of plaster in rectangular patches and
plastered again after raking the masonry joints properly. Such portions shall be
wetted and allowed to dry. Any crevices, at any level shall be cleaned and filled
with the plaster mortar and cured as above. They shall then be given one coat of
white wash.All unnecessary nails shall be removed, the holes, cracks, patches etc.
shall be made good with material similar in composition to the surface to be
Wherever scaffolding is necessary, it shall be erected in such a way that as far as
possible no part of scaffolding shall rest against the surface to be white or colour
washed. A properly secured, strong and well tied suspended platform (Zoola) may
be used for white washing. Where ladders are used, pieces of old gunny bags shall
be tied at top and bottom to prevent scratches to the floors and walls. For white
washing of ceilings, proper stage scaffolding shall be erected where necessary.
Also, whilepainting the ceiling, the floor area shall be covered properly with plastic
so that the flooring is not spoiled.
The primer shall be applied with a brush on the clean, dry and smooth surface.
Horizontal strokes shall be given first and vertical strokes shall be applied
immediately afterwards. This entire operation will constitute one coat. The surface
shall be finished as uniformly as possible leaving no brush marks. A coat of putty
(lapi) shall be applied to the entire surface. Putty shall be used of readymade or
brought of the company like Asian as directed by the Engineer-in-charge and
Architect. The second coat of primer and putty shall then be applied, and it shall
thereafterbeallowedtodryforatleast48hoursbeforeoilbounddistemperorpaintis
Modeof Measurementsand Payment:
TherateshallbeforaUnitofSq.mt.
53 Finishing wall with weather proof exterior emulsion paint on wall surface
(two coats) to give an required shape even shade after thoroughly brushing the
surface to remove all dirt,and remain sof loose powdered materials.etc
Materials: Water shall conform to M-1 and acrylic paint shall conform to its supplier’s specification Apex or
equivalent as make approved by the EngineerIn Charge.
The materials required for work of painting work shall be obtained directly from
approved manufacturers or approved dealer and brought to the site in maker's
drums, cage etc. with seal unbroken. All materials not in actual use shall be kept
properly protected, lid of containers shall be kept closed and surface of paint in
open or partially open containers covered with a thin layer of water to prevent
formation of skin. The materials, which have become stale or flat due to improper
and long storage, shall not be used. The paint shall be stirred thoroughly in its
container before pouring into small containers. While applying also, the paint shall
be continuously stirred in smaller container. Noleft over paint shall be put
backintostocktins when not in use.Thepaint shall be stirred thoroughly in its
container before pouring into small containers.If for any reasons, thinning is
necessary, water shall be added as per supplier’s instructions The surface to be
painted shall be thoroughly cleaned and dusted. All rust, dirt and grease shall be
thoroughly removed before painting is started. No painting on exterioror other
exposed parts of the work shall be carried out in wet, damp or otherwise
unfavorable weather and all the surfaces shallbe thoroughly dry before painting
workis started.
Wherever scaffolding is necessary, it shall be erected in such a way that as far as
possible no part of scaffolding shall rest against the surface to be white or colour
washed. A properly secured, strong and well tied suspended platform (Zoola) may
be used for white washing. Where ladders are used, pieces of old gunny bags shall
be tied at top and bottom to prevent scratches to the floors and walls. For white
washing of ceilings, proper stage scaffolding shall be erected where necessary.
Also, whilepainting the ceiling, the floor area shall be covered properly with plastic
so that the flooring is not spoiled.
Preparationofsurface:
All unnecessary nails, hooks etc. shall be removed. Pitting in plaster shall be made good with plaster again and
papered with a fine grade sand paper and made smooth. The surface affected by moulds, moss, fungi, algae lichens,
efflorescence etc. shall be treated in accordance with IS : 2395 (Part-1)-1966.
PreparationofMix:
This shall be done as per the manufacturer’s instructions. The thinning of emulsion is to be done with water and not
with turpentine. The quantity of thinner to be added to shall be as per manufacturer's instructions.
Before pouring into small containers for use of applying, the paint shall be stirred
thoroughly in its container. Also, the paint shall be continuously stirred in the
smaller container, so that its consistency is kept uniform.The paint shall be laid on
evenly and smoothly by means of crossing and laying off. The crossing and laying
off consists of covering the area over with paint, brushing the surface hard for the
first time over and then brushing alternately in opposite directions two or three
thenfinallybrushinglightlyindirectionatrightanglestothesame.Inthisprocess,no
brush marks shall be left after the laying off is finished. The full process of
crossing and laying off will constitute one coat. No hair marks from the brush or
clogging of paint puddles in the corners of panels, angles of moldings etc. shall be
left on the work. On the newly plastered surface, the first coat shall be applied
with 100% dilution and second and third coats hall be applied
with40%dilutionorasperthe
supplier’s instructions the second or subsequent coat shall not be started until the
precedingcoat has become sufficientlyhard toresist markingof the brush
(a) Old brushes if they are to be used with paints shall be completely dried of turpentine or oil paint by washing in
warm soap water. Brushes shall be quickly washed in water immediately after use and shall be kept immersed in
waterduringbreakperiodstopreventthepaintfromhardeningonthebrush.
(b) In the preparation of walls for plastic emulsion painting, no oil base putties shall be used in filling cracks, holes
etc. (c) Splashes on floors etc. shall be cleanedoutwithoutdelay,astheywillbedifficulttoremoveafterhardening.
(d) Washing of surfaces treated with emulsion paint shall not be done within 3 to 4 weeks of application.
Protectivemeasure:
The surface of doors, windows, ventilators, floors, of furniture etc. and such other parts of the building not to be
white/colour washed shall be protected from being splashed upon. Such surfaces shall be cleaned of
white/colourwash splashed, if any, immediately after completing the painting, at no extra cost.
ModeofMeasurementsandPayment:
For mode of measurement latest version of IS 1200 shall be followed. All the
work shall be measured in the decimal system as under:
(a)Dimensionsshallbemeasuredtothenearest0.01 m.
(b)Areainindividualitemsshallbeworkedouttothenearest0.01m2.
All works shall be measured in sq.mt. In jambs, soffits, sills etc. and for openings
not exceeding 0.5 m2 each in area, for ends of joists, posts, beams, girders, steps
exceeding0.5m2eachinareaandforopeningsexceeding0.5m2andnotexceeding
3.0m2eachinarea,deductionsandadditionsshallbemadeasunder:-
1) Nodeductionsshallbemadeforendsofjoists,beams,posts,etc.andfor openings not
exceeding 0.5 m2 each. No addition shall be made for reveals, jambs, soffits, sills
etc. of these openings nor for finish around ends of joists, beams, posts etc.
2) Deductions foropeningsexceeding 0.5m2butnotexceeding3.0m2eachshall be
madeas follows and no addition shall be made for reveals, jambs, soffits etc. of
these openings:
When both the faces of walls are provided with the same finish, deduction shall be
made for one face only.
When each face of wall is provided with a different finish, deduction shall be
madefor that side of frame for door, windows, etc. on which width of reveals is
thatoftheotherside.Wherewidthofrevealsonbothfacesofwallisequal,deduction of
50% of area of opening on each face shall be made from total area of finish.
When only one face of wall is treated and the other face is not treated, full
deduction shall be made if when width of reveal on the treated side is less than
that on the untreated side, but if the width of reveals is equal or more than on the
untreated side neither deductions nor additions to be made for reveals, jambs,
soffits, sills etc.
3) In case of area of openings exceeding 3.0 m2 each, deduction shall be made for
openings but jambs, soffits shall be measured.
4) No deductions shall be made for attachment such as casing, conduits, pipe,
electric wiring and the like. 3.2 Corrugated surfaces shall be measured flat as
fixed and not girth. The quantities measured shall be increased by the following
percentage and the resultant shall be included with the general areas:
(a) Corrugatedsteelsheets -------------------------------- 14%
(b) CorrugatedA.C.Sheets------------------------------- 20%
(c) SemicorrugatedA.C.Sheets ------------------------- 10%
(d) Nainitalpatternroof(Plainsheetingwithrolls) ---- 10%
(e) Nainitalpatternroof(withcorrugatedsheets) ----- 25%
Cornices and other wall features, when they are picked out in a different finish/colour shall be girthed and included
in the general area. The rate shall include the cost of all materials, labour, scaffolding, protective measures etc.
required for the above specified operation, at all floors, at any height, in any
position.PrimingandAlkaliresistanttreatments, scrappingofsurface washing etc. surface spoiled by smoke soot,
removal of oil and grease spots, treatment for infection with efflorescence moulds, moss, fungi, algae and lichen and
patch repairs to plaster wherever done shall not be paid extra. This shall also include conveyance, delivery,
handling, unloading, storing work etc. The rate shall be for a unit of one sqmt.
ModeofMeasurement& Payment:
Therateshallbeforaunit of onesq.meter
53Wall painting (two coats) with plastic emulsion paint of approved brand and
manufacture on undecorated wall surfaces to give an even shade including
thoroughly brushing the surface free from mortar dropping and other foreign
matter and sand paper smooth.
1.0 Materials : Water shall be conform to M-1. The plastic emulsion shall conform to
I.S. 5411-1969 (part-I)
2.0 Workmanship:
Scaffolding : The relevant specifications of item No. 18.11 para 2.1. shall be
PreparationofSurface:TherelevantspecificationsofitemNo.18.44para2.2
shallbefollowed.
Preparation of Mix : This shall be done as per manufacturers instructions. The
thinning of emulsion is to be done with water and not with turpentine. The quantity of
thinner to be added shall be as per manufacturer instructions.
Before pouring into small containers for use, the paint shall be stirred thoroughly in
its container. When applying also, the paint shall be continuously stirred in the smaller
container, so that its consistency is kept uniform.
The paint shall be laid on evenly and smoothly by meant of crossing and laying off
the crossing and laying off consist of coveringthe area over with paint, brushing the surface
hard for the first time over and then brushing alternately in opposite direction two or three
times and then finally brushing lightly in a directionatrightanglestothesame.
Inthisprocess,nobrushmarksshallbeleft after the laying off is finished. No hair marks from the
brush or clogging ofpaint puddles in the corners of panels, angles of mouldings, etc. shall be
left on the work. The full process of crossing and laying off will constitute one coat.
The paint shall be applied with brush or rollers. For undecorated surfaces, the
surface shall be treated with minimum two coats of cement water
proofingpaint.Thesecondorsubsequentcoatshallnotbestarteduntiltheprecedingcoat has become
sufficiently hard to resist marking by brush being used.
The surface on finishing shall present a flat velvety smooth finish. It shall be even
and uniform in shade without patches, brush marks, paint drops etc.
(a) Old brushes if they are to be used with emulsion paints, shall be completely dried
of turpentine oil paint by washing in warm soap water.
Brushes shall be quickly washed in water immediately after use and kept immersed in water during break periods to
prevent the paint from hardening on the brush.
(b) In the preparation of wall for plastic emulsion painting, no oil base putties shall be
used in filling cracks, holes etc.
(c) Splashesonfloorsetc.shallbecleanedoutwithoutdelayastheywillbedifficult to remove
after hardening.
(d) Washing of surfaces treated with emulsion paint shall not be done within 3 to
weeks of application.
Protectivemeasures:
Therelevantspecifications ofitemNo. 18.17para2.3 shallbefollowed.
Modeofmeasurements&payment:
TherelevantspecificationsofitemNo.18.11shallbefollo
wed. The rate shall be for a unit of one sq. metre
Note:- I HAVE ALSO GONE THROUGH TECHNICAL SPECIFICATIONS FOR THE ITEMS (AS PER STANDARD
P.W.D. TECHNICAL SPECIFICATION FOR THE ITEMS AND ALSO I HAVE THE BOOK OF THE SAME) AND AGREE
TO ABIDE BY THEM. IN CASE OF WHERE THERE IS NO TECNICAL SPECIFICATION FOR THE ANY ITEMS
AVAILABLE, SPECIFICATION GIVEN BY THE ENGINEER-IN –CHARGE / MANUFACTURER STANDARD
SPECIFICATION SHALL BE FOLLOWED AND FOR THE SAME I AGREE TO ABIDE BY THEM
ContractorSign:
GENERAL INSTRUCTIONS FOR ELECTRICAL WORKS
The scope of this section is to describe materials and systems for electrical installation works which form together with the
project documents, a complete volume of work and quality description.
All electrical installations shall be of high quality, safe, complete and fully operational including all necessary items and
accessories whether or not specified in details. All electrical works shall be completed in accordance with the regulations and
standards as perthestatutoryrequirementtothesatisfactionoftheEmployer.Thegeneralprovisions, specialprovisions and
generalrequirements apply to allitems of thisspecification.
Theworkshallbecarriedoutsimultaneouslywithbuildingwork,civilwork,etc.andshallbe
continuedtillitiscompletedsatisfactorilyalongwiththecompletionofessentialportionsof the building works.
Duringtheprogressofwork,completedportionofthebuildingmaybeoccupiedandbeput
tousebyEmployerbutthecontractorwillremainfullyresponsibleforthemaintenanceof
electricalinstallationstilltheentireworkcoveredbythiscontractissatisfactorilycompleted by him and handed over to Employer.
Itistheintentionofthespecificationanddrawingstocallforfinishedwork,testedandready
foroperation.Wheneverthewords“Supply”or“Provide”areused,itshallmeandeliveryof material as specified in an assembled
manner, ready for installation. Any apparatus, materialorworknotshownondrawingsbutmentionedinthespecificationorviceversa,or
anyincidentalaccessoriesnecessarytomaketheworkcompleteandperfectinallrespects
andreadyforoperation,evenifnotparticularlyspecified,shallbefurnished,deliveredand installed by the contractor without
additional expenses to Employer. Minor details not
usuallyshownorspecified,butnecessaryfortheproperinstallationandoperation,shallbe included in the work and in the contract.
ElectricalcontractorshallbeClassAlicensedContractorregisteredwithR&BDepartment of Gujarat and shall have completion
certificate of three similar project Electrical jobs completed of same cost in last 3 years.
Civil Contractor shall provide the MOU signed with Electrical contractor (Class A) with Technical bid during bidding process.
2) INTERPRETATIONOFPROJECTDOCUMENTS:
The Specification, Drawings and Bill of quantity shall be interpreted in accordance with good installation practice defined in
the appropriate regulations and standards whether
specificallyreferredtoornot.Ifthereareanydiscrepanciesorshortfallintheapplicationof the regulationstoany aspectofthis
contractorthecontractor
Considersthereisanythingdetrimentaltothestandardsorinconsistentwithhisobligations and guarantees, Employer shall be informed
prior to signing the contract and thereafter inform the contractor in writing the course to be followed. Where the drawings
are to a smallscaleorareexpressedinsymbolictermsorareintheformofadiagram,thenexact
locationofitemsshallnotbeinferredandinallcases,theworkshallbefullyintegratedwith
theworkofothertradersandwiththefabricofthebuilding.Thecontractorshallappraise the duties of all plants and equipments taking
account of any additions or variations and shall inform the Employer of any matters which may affect the design. In all cases
the equipmentinstalledshallbeofappropriateratingforthedutyitperforms.
TheSpecificationsandbillofquantityshallbeconsideredaspartofthiscontractandany work ormaterial shown on BOQ andnotcalled
forin the specification orvice versa,shall be executed as if specifically called for in both. The drawings indicate the extent and
generalarrangementoftheTransformer,L.T.panel,H.T.&L.T.cableroutelayoutetc.and are essentially diagrammatic.
The work shall be installed as indicated on the drawings, however, any minor changes found essential to co-ordinate the
installations of this work with other services shall be
madewithoutanyadditionalcosttotheEmployer.Thedrawingsarefortheguidanceofthe contractor, exact locations, distances and
levels will be governed by the building. The
contractorshallexamineallstructuralandelectricaldrawingsbeforestartingthework,and
reporttoEmployeroritsrepresentative,anydiscrepancies,whichinhisopinionappearon them, and get them clarified.
IfanydiscrepancyisnoticedbetweenGeneralConditionsofContract,specification,Billof quantity and Drawings, the most stringent
of the above shall apply. Bill of quantities, for
electricalitems,shallbereadinconjunctionwithrespectivespecification.However,incase
ofconflictbetweenbillofquantitiesandthespecification,formershallgovern.
3) SYSTEMPARTICULARS:
LV : 433V,3Phase,4wire,50Hz.
Neutralearthing : Solid
4) ABBREVIATIONS:
Thefollowingabbreviationshavebeenusedintheaccompanyingspecifications,drawings and bill of quantity.
IS : IndianStandard
BS : BritishStandard
HRC : HighRupturingCapacity GI :
Galvanised Iron
MV : MediumVoltage
LV : LowVoltage
PVC : PolyvinylChloride AMP
HV : HighVoltage
KVA : KiloVoltAmpere
PF : PowerFactor
Hz : Frequency KWH :
XLPE : CrossLinkedPolyethylene ACB
: Air Circuit Breaker
LED : LightEmittingDiode
PLC : ProgrammableLogicController UPS :
Uninterrupted Power Supply DP :
IEE : InstituteofElectricalEngineers,London MCB :
Miniature Circuit Breaker
TPN : TriplePoleandNeutral SP :
MCCB : MouldedCaseCircuitBreaker VCB :
Vacuum Circuit Breaker
CT : CurrentTransformer
DB : DistributionBoard
DG : Diesel Generator
BOQ : Billofquantity
SITC : Supply,Installation,TestingandCommissioning
L.O.I. : LetterofIntent/Acceptanceletter ELV :
Extra Low Voltage System
MP : MegaPixels
CCTV : CloseCircuitTelevision
PA : PublicAddressSystem
FACP : FireAlarmControlPanel NVR:
NetworkVideoRecorder
NVMS : NetworkVideoMonitoringSoftware
5) REGULATIONSANDSTANDARDS:
The installation shall conform in all respects to Indian Standard Code of Practice for Electrical Wiring Installation IS: 732-1983
and IS: 2214 – 1983 (Silver Nitrate Pure and
analyticalreagent).ItshallalsobeinconformitywiththecurrentIndianElectricity,Rules, Indian Electricity Act, National Electrical
Code and Regulations of the Local Electrical Supply Authority in so far as these become applicable to the installation.
Wherever this specificationcallsforahigherstandardofmaterialand/orworkmanshipthanthoserequired
byanyoftheaboveregulationsthenthisspecificationshalltakeprecedenceoverthesaid regulations and standard. In general, the
materials equipment and workmanship not coveredby the above shall conform to the relevantIndian Standards.
TheelectricalinstallationworkshallfollowCodes,IndianStandardspecificationsandrules (Within the bestmeaning of the
same)under this contract.
The following list is given for general guidance only in addition to list given in each
individualsection,howeverallotherlatesteditionsofCodes,IndianStandardspecifications and Rules shall also be followed when it is
IS:8623 Lowvoltageswitchgear&controlgearassemblies
CodeofPracticeforselection,installationandmainte
nance of switchgear and control gear
IS: 4237 Generalrequirementforswitchgearandcontrolgearfor
voltage not exceeding 1000 Volt A.C. or 1200 Volt
Lowvoltageswitchgearandcontrolgea
r IS : 9224 Low voltage fuses
Circuitbreakersforoutprotectionforhouseh
oldand similar installations
IS:12640 Earthleakagecircuitbreaker
Directactingindicatinganalogelectricalme
asuring instruments
IS:2705 Currenttransformers
IS:4201 Applicationguideforvoltagetransformers
IS:6875 Controlswitchesforvoltageuptoandindicating1000V
A.C.and1200VD.C.
IS:5578 Guideformarkingofinsulatedconductors
Guideforuniformsystemofmarkingandidentifica
tionof conductors and apparatus transmission
Terminalmarkingsforelectricalmeasuringinstr
uments and their accessories
IS : 694 SpecificationsforPVCinsulatedcablesforworking
voltage upto and including 1100 volts
IS:2551 Dangernoticeplates
IS:3043 Codeofpracticeforearthing
IS:5216 Guideforsafetyproceduresandpracticesinelectrical work
IS : 1646 Codeofpracticeforfiresafetyofbuilding:Electrical
IS:1239 Codeof pinplugsand sockets.
IS : 732 Codeofpracticeforelectricalwiringinstallation(systemvoltagenot Exceeding 650 V)
IS:1653 Rigidsteelconduitsforelectricalwiring.
IS:2667 Fittingsforrigidsteelconduitsforelectricalwiring.
IS : 3837 Accessoriesforrigidsteelconduitforelectricalwiring.
IS : 2509 Rigid non-metallic conduits for Electrical Wiring.
IS : 6946 Flexible(Pliable)non-
metallicconduitsforelectricalinstallation. IS : 1293 3 pin plugs
Specificationsofconduitsforelectricalinstallatio
n IS : 3854 Switches for domestic purpose.
IS:3415 Fittingsforrigidnon-metallicconduits.
IS : 4648 GuideforelectricallayoutinresidentialbuildingIndianelectricityact
Indian Electricity Act as amended up to date
IndianElectricityRulesasamendeduptodate
RulesandRegulationsofBombayRegionalCouncilofFireInsurance& Association of India for Electrical wiring.
6) FEES,PERMITSAND TESTS:
The Contractors shall pay for any and all fees and obtain permits required for the
installationwork.Oncompletionofthework,thecontractorshallobtainanddelivertothe
Employer,certificatesoffinalinspectionandapprovalbythelocalelectricsupplyauthority and the Electrical Inspector.
7) ACTUALROUTEOFCABLE:
Thelocationofthecables,panelboardsetc.isonlyindicative,therefore,theactualrouteof
cablesandthelocationofpanelboardsmaydifferfromtheplansaccordingtothedetailsof
thebuildingconstructionandtheconditionsofexecutionsoftheinstallations.
The contractor shall supply and install at his expense all secondary materials and special fittings found necessary to
overcome the interference and to supplythe modifications on
therouteofcablesandconduitsthatarefoundnecessaryduringthework,tothecomplete satisfaction of the Employer’s
representative.
8) MATERIAL ANDEQUIPMENT:
Allmaterialandequipmentshallconformtotherelevantstandardsandshallbenew,good quality, of the approved make and design.
The materials and equipment shall confirm to relevant Indian Standards. The Contractor shall be responsible for
the safe custody of all materials and shall insure them against theft, damage by fire, earthquake etc. A listof items of
materials and equipment,together with sample of each shallbesubmittedtotheEmployerwithin10days oftheawardof
thecontract.Anyitem which is proposed as a substitute, shall be accompanied by all technical details giving sizes, particular of
materials and the manufacturer’s name and shall be submitted along with the tender or bid offer. At the time of the
submission of proposed substitute the Contractorshallstatethecredit,ifanyduetotheEmployer.Intheeventthesubstitutionis
approved, all changes and substitutions shall be requested in writing and approvals
obtainedinwritingfromEmployer.Employer’sdecisioninthemattershallbefinal.
All materials of the same kind of service shall be identical and made by the same
manufacturers.AnydeviationtothisruleshallbeapprovedbytheConsultant.Toppriority shall be given to the products that have a
permanent agent providing spare parts and maintenancefacilitiesinthesame citywhere theprojectissituated.
Themakes of electrical equipment’s, components, accessoriesetc.have been mentioned in Tender document. However, Client
/ Electrical Consultant reserves the right to select from the specified make. Contractor shall clearly indicate in the bid
document, the make theyhaveconsidered.Noextraclaimshallbeapplicableifclient/consultantsuggestsfrom the alternative make
specified in the tender document.
9) MANUFACTURERS :
Wheremanufacturershavefurnishedspecificinstructionsrelatingtothematerialsusedin
thisjob,coveringpointsnotspecificallymentionedinthesedocuments,theseinstructions shall be followed in all cases.
Wheremanufacturer’snamesand/orcataloguenumbersaregiven,thisisanindicationof the quality, standards and performance
Wheninterfacingoccurs,equipmentshallbemutuallycompatibleinallrespects.
Ratingofallitemsshallbeappropriatefortheconditionsontheparticularsiteonwhichthe items will be used. All the equipment shall
be fit for continuous work under the worst conditionsofsiteandshallberatedforthefollowingambientcondition.
Outdoortemperature50deg.c.
Temperatureundershed45deg.c.
Salty,dustyandhumid
11) INSPECTIONANDTESTING:
Employer’s representative reserves the right to request inspection and testing at manufacturer’s worksatallreasonable
timesforthis contract.Testsonsiteofcompleted works shall demonstrate, among other things:
1. Thatthe equipmentinstalledcomplies withspecificationinallparticulars andisofthe
correct rating for the duty and site conditions.
2. Thatallitemsoperateefficientlyandquietlytomeetthespecifiedrequirements.
3. That all circuits are correctly fused and protected and that protective devices are
properly co-ordinated.
4. That all non current carrying metal work is properly and safely grounded in
accordance with the specifications.
5. The contractor shall provide all necessary instruments and labour for testing, shall
make adequate records of test procedures and readings, shall repeat any tests
requested by the Employer and shall provide test certificates signed by a properly
authorised person. Such test certificates shall cover all works.
6. Iftestsfailtodemonstratethesatisfactorynatureoftheinstallationoranypartthereof then no
claims for the extra cost of modifications, replacements or re-testing will be
considered. Employer’s decision as to what constitutes a satisfactory test shall be
7. The above general requirements as to testing shall be read in conjunction with any
particular requirements specified elsewhere.
12) TESTCERTIFICATES:
Thecontractorshallsubmittestcertificatesforalltheelectricalmaterial/systeminstalled. These shall be issued by a government
recognized inspection office certifying that all
equipment,materials,constructionandfunctionsareinagreementwiththerequirementsof
thesespecifications,ISIandwhenISIisnotapplicableotherapprovedcertifyingagencies.
13) INSTRUCTIONMANUAL:
Thecontractorshallprepareandproduceinstruction,operationandmaintenancemanuals in English for the use, operation and
maintenance of the supplied equipment and installations,and submit3setstoEmployer,atthetimeofhandingover.
14) SAMPLESANDCATALOGUES:
Beforeorderingthematerialnecessaryfortheseinstallations,thecontractorshallsubmitto Employer for approval, a sample of every
kind of material such as cables,
conductors,conduits,switches,socketoutlets,circuitbreakers,lightingfixtures,boxesetc. along with the catalogues.
Forbigitemssuchasswitchboards,thesubmissionofcataloguesshallbeenough.Priorto ordering any electrical equipment / material
/ system, the contractor shall submit to Employer, the catalogues, along with the samples, at least from three different
manufacturers. After the selection of manufacturer by Employer, the contractor shall arrange inspection and testing at the
manufacturer’s factory or assembly shop for final
approval.NomaterialshallbeprocuredpriortotheapprovaloftheElectricalconsultant& Data sheets shall be signed and stamped by
consultant and one copy to be submitted to Client.
15) VENDOR ANDSHOPDRAWINGS:
ThecontractorshallprepareandsubmittoEmployer,forhisapproval,twosetsofvendor
detaileddrawingsofalldistributionboards,switchboards,outletboxes,specialpullboxes
andotherlikewisematerial,equipmenttobefabricatedbythecontractor,orothervendor within 15 days of signing of the contract.
Before starting the work, the contractor shall submit to Employer for his approval in the
prescribedmanner,theshop/executiondrawingsfortheentireinstallation,speciallythe main connections and junctions, the route
of conduits and cables, no. and size of wires drawn through the conduits, location of all the outlet points, and switch boards
and distributionboardsandanyotherinformationrequiredbyEmployer.Employerreservesthe
righttoalterormodifythesedrawingsiftheyarefoundtobeinsufficientornotcomplying with the established technical standards or if
they do not offer the most satisfactory performance or accessibility for maintenance.
16) ASBUILTDRAWINGS:
At the completion of work and before issuance of certificate of virtual completion the
contractorshallsubmittoEmployer,threesetsoflayoutdrawingdrawnatappropriatescale
indicatingthecompletewiringsystem“asinstalled”.Thesedrawingsmustprovide(inplan, folded elevation and section)
a. Locationanddetailsofdistributionboards,mainswitches,switchgearand other
b. Locationofallearthingstations,routeandsizeofallearthingconductors, manholes
c. Routeandparticularsofallcables.
d. Lightinglayout plans with conduit routinglayout/cable tray forallthe floors
along with circuit distribution details.
e. ExternalAreaLightingPlan f.
At the close of the work and before issuance of final certificate of virtual completion by Employer, the contractor shall furnish
written guarantee indemnifying Employer against defective materials and workmanship for a period of one year after
completion. The contractorshallholdhimselffullyresponsibleforreinstallationorreplacement,freeofcost to Employer, the
a. Anydefectiveworkormaterialsuppliedbythecontractor.
b. AnymaterialorequipmentsuppliedbyEmployer,whichisdamagedordestroyedas a result
of defective workmanship by the contractor.
c. Any material or equipment damaged or destroyed as a result of defective
workmanship by the contractor.
18) SPECIALNOTESFORBIDDER:
a. All the major electrical components like Transformers, DGs, HT MV LT switchgears,
DBs, UPS, etc including the external & internal electrical distribution system, earthing
systems & various equipments (which is supplied &/or installed by the contractor)
shall be maintain for 2 years from the date of virtual completion of work at free of
b. The contractor should co-operate & coordinate for LT connections to LT panel board
of various blocks, so that day to day work should not suffer.
c. It is in the scope of Contractor to preparing necessary drawing submitting to
authorities (i.e. Local supply co., pollution control board, Electrical Inspector, etc),
getting their approval / sanction and final certificate to energize the sub-station
equipment’s. Filling the necessary application to supply co. following up and getting
the supply filling the necessary test report to the supply co. inclusive. All official / statutory fees shall be paid by clients &
all other required expenses shall be on the contractors account; no extra payment shall be paid to contractor for said
d. LTPanelsshall beapprovedonsite byEngineerinCharge&ElectricalConsultant.
e. Contractor shall submit Shop drawings for approval to Electrical consultant based on
tender drawings before execution which shall not be on chargeable basis.
f. TheMCBandMCBDBsmustbeofsamemake.
g. Makeof components requiredto beusedbycontractor to complete the installation, if
not mentioned anywhere, shall be required to GOT IT
h. APPROVEDbyClient/Architect/Consultantbeforeinstallationinwritingmanner.
i. Within a week of work order, the contractor shall submit the sample of each item /
component of above mentioned approved make for the approval of the
Client/Architect/Consultant.
5TECHNICALSPECIFICATIONFORPCC,MCC, LT PANELS
1) SCOPEOF WORK
1. Main Distribution Panels, Sub-Distribution Panels and Final Distribution shall be covered
under this section. Panels/Boardsshall be suitable for operationon3 Phase/single
phase,415/240 volts,50 cycles,4 wire system with neutral grounded at transformer.All
Distribution panels shall be CPRI tested design and manufactured by an approved
manufacturer. CPRI certificate shall be made available.
2. Distribution panels shall comply with the latest Relevant Indian Standards and Electricity
Rules and Regulations and shall be as per IS-13947-1991.
2) CONSTRUCTIONFEATURES:
1. Distributionpanelsshallbe2mmthicksheetsteelcabinetforindoorinstallation,deadfront,
floormounting/wallmountingtypeandshallbeformaspersiteconstructionrequirements.
2. The Distribution panels shall be totally enclosed, completely dust and vermin proof and
shall be with hinged doors and folded covers, Neoprene gasket, padlocking arrangement
and bolted back.
3. Allremovable/hingeddoorsandcoversshallbegroundedbyflexiblestandardconnectors.
4. Distribution panel shall be suitable for the climatic conditions as specified in Special
Conditions.SteelsheetsusedintheconstructionofDistributionpanelsshallbe2mmthick
andshallbefoldedandbracedasnecessarytoprovidearigidsupportforallcomponents.
5. Jointsofanykindinsheetmetalshallbeseamwelded,allwelding,slagshallberounded off and
weldingpits wiped smooth with plumber metal.
6. ThegeneralconstructionshallconfirmtoIS-8623-1977(Part-1)forfactorybuiltassembled
switchgear & control gear for voltage up to and including 1100 V AC.
7. Allpanelsandcoversshall beproperlyfitted andsquare withthe frame,andholesin the panel
correctly positioned.
8. Fixingscrewsshallenterintoholestappedintoanadequatethicknessofmetalorprovided with
9. SelfthreadingscrewsshallnotbeusedintheconstructionofDistributionpanels.
10. Abasechannelof75mmx40mmx5mmthickshallbeprovidedatthebottomforfloor mounted
11. Minimumoperatingclearanceof300mmshallbeprovidedbetweenthefloorofDistribution panels
and the lowest feeder compartment.
12. Distribution panels shall be of adequate size with a provision of spare switchgear as
indicated on the Single Line Diagram. Feeders shall be arranged in multi-tier.
13. KnockoutholesofappropriatesizeandnumbershallbeprovidedintheDistributionpanels in
conformity withthe locationof cable/conduitconnections.
14. Removable sheet steel plates shall be provided at the top to make holes for additional
cable entry at site if required.
15. EverycabinetshallbeprovidedwithTrifoliateorengravedmetalnameplates.
16. AllpanelsshallbeprovidedwithcircuitdiagramengravedonPVCsheet.
17. All live accessible connections shall be shrouded and shall be finger touch proof and
minimumclearancebetweenphaseandearthshallbe20mmandphasetophaseshallbe 25 mm.
3) BUSBARCONNECTIONS:
1. Busbarandinterconnectionsshall be of highconductivityelectrolyticgradealuminium/
copperasindicatedinthebillofquantitiescomplyingwithrequirementofIS:5082–1981
andofrectangularcrosssectionsuitableforcarryingtheratedfullloadcurrentandshort circuit
current and shallbeextendableoneither side.
2. Bus bars and interconnections shall be insulated with heat shrinkable sleeve of 1.1 KV
grade and shall be colour coded.
3. Bus bars shall be supported on glass fiber reinforced thermosetting plastic insulated
supportsatregularintervalstowithstandtheforcearisingfromincaseofshortcircuitinthe system.
4. Allbusbarsshallbeprovidedinaseparatechamberandallconnectionsshallbedoneby bolting.
5. Additionalcrosssectionalareatobeaddedtothebusbartocompensatefortheholes.
6. Allconnectionsbetweenbusbarsandbreakersshallbethroughsolidcopper/aluminium
stripsofpropersizetocarryfullratedcurrentandinsulatedwithinsulatingsleeves.
7. Maximum current density for the bus bars shall be 0.8-1A/sq.mm for aluminium and
A/sq.mm for copper bus bars.
8. Thebusbarshallbehousedinaseparatecompartment.Thebusbarshallbeisolatedwith
3mm.thickBakelitesheetto avoid any accidentalcontact.Thebusbarshall bearranged such
thatminimum clearance between the busbar are maintained as below:
Between phases : 25mm.minimum
Between phases and neutral : 25 mm.
Betweenphasesandearth : 25mm.
Betweenneutralandearth : 20mm.minimum
MaximumallowabletemperaturefortheBusbartoberestrictedto85degC
4) TEMPERATURE–RISE LIMIT
1. Unless otherwise specified, in the case of external surface of enclosures of bus bar
compartment which shall be accessible but do not need to be touched during normal
operation,anincreaseinthetemperatureriselimitsof25°Caboveambienttemperature shall be
permissible for metal surface and of 15° C above ambient temperature for insulating
surfaces as per IS 8623(Part-2)
2. All main distribution panels and sub distribution panels shall be provided with MCCB of
appropriate capacity as per Single Line Diagram.
3. AllfinalDistributionboardsshallbeprovidedwithMiniatureCircuitBreakers.
4. FinalSingle PhaseDistribution boardsshall beconnectedto the incomingsupply through
double pole MCB units & earth leakage circuit breakers.
5. Allwiringforfinaldistributionboardsshallbeconcealedbehind5mmthickBakelitesheet or M S
6. AllDistributionboardsshallbecompletelyfactorywired,readyforconnection.
7. All the terminals shall be of proper current rating and sized to suit individual feeder
8. Eachcircuitshallbeclearlynumberedfromlefttorighttocorrespondwithwiringdiagram.
9. Alltheswitchesandcircuitsshallbedistinctlymarkedwithasmalldescriptionoftheservice
10. Continuousearthbussizedforprospectivefaultcurrentshallbeprovidedwitharrangement
forconnectingtostationearthattwopoints. Hingeddoors/framesshallbeconnectedto earth
through adequately sized flexible braids.
5) CABLECOMPARTMENTS
1. Cablecompartmentofadequatesizeshall beprovided in the Distributionpanelsforeasy clamping of all incoming and outgoing cables
entering from the top/bottom. Adequate supports shall be provided in cable compartment to support cables.
MOULDEDCASECIRCUITBREAKER (MCCB)
1. TheMCCBshouldbecurrentlimitingtypewithtriptimeof lessthan10msecundershort circuit
conditions. The MCCB should be either 3 or 4 poles as specified in BOQ. MCCB
shallcomplywiththerequirementsoftherelevantstandardsIS13947–Part2/IEC60947-2
andshouldhavetestcertificatesforBreakingcapacitiesfromindependenttestauthorities CPRI /
ERDA or any accredited international lab.
2. MCCBshallcompriseofQuickMake-breakswitchingmechanism,arcextinguishingdevice
andthetrippingunitshallbecontainedinacompact,highstrength,heatresistant,flame
retardant, insulating moulded case with high withstand capability against thermal and
mechanical stresses
3. ThebreakingcapacityofMCCBshallbeasspecifiedinthescheduleofquantities.
4. The rated service breaking capacity (Ics) should be equal to rated ultimate breaking
capacities (Icu).
5. MCCBs for motor application should be selected in line with Type-2 Co-ordination as per
6. ThebreakerassuppliedwithROMshouldmeetIP54degreeofprotection.
CURRENTLIMITING &COORDINATION
1. The MCCB shall employ maintenance free minimum let-through energies and capable of
achievingdiscriminationuptothefullshortcircuitcapacityofthedownstreamMCCB.The
manufacturershallprovideboththediscriminationtablesandlet-throughenergycurvesfor all.
Protection Functions
1. MCCBs withratings upto200 Ashall be equippedwith Thermal-magnetic(thermal for
overloadandmagneticforshort-circuitprotection)tripunits(asperSinglelinediagram).
2. Microprocessor MCCBs with ratings 250A and above shall be equipped with
microprocessor based trip units (as per Single line diagram).
3. Microprocessorandthermal-magnetictripunitsshallbeadjustableanditshallbepossible tofit
lead seals to prevent unauthorised access to the settings
4. MicroprocessortripunitsshallcomplywithappendixFofIEC60947-2standard
(measurementofrms currentvalues,electromagnetic compatibility,etc.)
5. Protectionsettingsshall applytoallpolesofcircuitbreaker.
6. AllMicroprocessor components shallwithstandtemperaturesup to 125°C.
7. RotaryhandlestobeprovidedforoperationwhereeverrequiredasindicatedinSingleline
1. OriginaltestcertificateoftheMCCBasperIEC60947-1&2orIS13947shallbefurnished.
2. Pre-commissioningtestsontheswitchboardpanelincorporatingtheMCCBshallbedone as per
standard specifications.
1. Moulded,casecircuitbreakersshallbeprovidedwiththefollowinginterlockingdevicesfor
interlocking the door of a switch board.
o Handleinterlocktopreventunnecessarymanipulationsofthe breaker.
o DoorinterlocktopreventthedoorbeingopenedwhenthebreakerisinON
o Defeat-interlockingdevicetoopenthedoorevenifthebreakerisinONposition.
o PLCcontrollertooperatetheMotorisedBreakersinsequenceasindicatedlogic
diagram in SLD.
1. The MCCB shall be current limiting type and comprise of quick make – Break switching
mechanism. MCCBs shall be capable of defined variable overload adjustment. AllMCCBs
rated200Ampsandabove shallhave adjustable overload&short circuitpick-upbothin
Thermal magnetic and Microprocessor Trip Units.
2. All MCCB with microprocessor based release unit, the protection shall be adjustable
Overload,Shortcircuitandearthfaultprotection withtimedelay.
3. Thetripcommandshalloverrideallothercommands.
MINIATURECIRCUITBREAKER(MCB)
1. Miniature Circuit Breaker shall comply with IS-8828-1996/IEC898-1995. Miniature circuit
breakers shall be quick make and break type for 240/415 VAC 50 Hz application with
magneticthermalreleaseforovercurrentandshortcircuitprotection.
2. The breaking capacity shall not be less than 10 KA at 415 VAC. MCBs shall be DIN
mounted. The MCB shall be Current Limiting type (Class-3). MCBs shall be classified (B,
C, D ref IS standard) as per their Tripping Characteristic curves defined by the
3. The MCB shall have the minimum power loss (Watts) per pole defined as per the IS/IEC
and the manufacturer shall publish the values.MCB shall ensure complete electrical
isolation & downstream circuit or equipment when the MCB is switched OFF.
4. Thehousingshallbeheatresistantandhavinghighimpactstrength.Theterminalsshallbe
protectedagainstfingercontacttoIP20 Degreeofprotection.AllDP,TP,TPNand4Pole
miniature circuit breakers shall have a common trip bar independent to the external
operating handle.
RESIDUALCURRENTCIRCUITBREAKERCURRENTOPERATEDTYPE (RCCB)
SystemofOperation
1. Residual Current Circuit Breaker shall confirm to IEC 61008.RCCB shall work on the
principle of core balance transformer.
2. Theincomingshallpassthroughthetorroidalcoretransformer.Aslongasthecurrentsin the
phase andneutralshall be thesame,no electromotiveforce shallbegenerated in
thesecondary windingof the transformer.
3. In the event of a leakage to earth, an unbalance shall be created which shall cause a
current to be generated in the secondary winding, this current shall be fed to a highly
sensitiveminiature relay,whichshalltripthecircuitiftheearthleakagecurrentexceeds a
predetermined critical value. RCCB shall be current operated independent of the line
voltage,currentsensitivityshallbeof30mAat240/415voltsACandshallhaveaminimum of
20,000 electrical operations.
MechanicalOperation
1. Themovingcontactsofthephasesshallbemountedonacommonbridge,actuatedbya
ruggedtogglemechanism.Hence,theclosing/openingofallthethreephasesshalloccur
simultaneously. This also shall ensure simultaneousopening of all the contacts under
tripping conditions.
NeutralAdvanceFeature
1. Theneutralmovingcontactshallbesomountedonthecommonbridgethat,atthetimeof closing,
the neutral shallmake contactFirst before the phases; and at the time of opening, the
neutral shall breaks last after allowing the phases to open first. This is an important
safetyfeature which is also requiredby regulations.
Testing Provision
1. A test device shall be incorporated to check the integrity of theearth leakage detection
system andthetrippingmechanism.Whentheunitisconnectedtoservice,pressingthe test
knob shall trip the ELCB / RCCB and the operatinghandle shall move to the
7) ELECTRICALPOWERANDCONTROLWIRINGCONNECTION:
1. Terminal for both incoming and outgoing cable connections shall be suitable for 1100 V
grade, aluminium / copper conductor PVC insulated and sheathed, armoured cable and
shallbesuitableforconnectionsofsolderlesssocketsforthecablesizeasindicatedonthe
appended drawings for the Panels.
2. Power connections for incoming feeders of the main Panels shall be suitable for 11000 V
grade aluminium conductor (XLPE) cables.
3. Both control and power wiring shall be brought out in cable alley for ease of external
connections, operation and maintenance.
4. Bothcontrolandpowerterminalsshallbeproperlyshrouded.
5. 10%spareterminalsshallbeprovidedoneachterminalblock.Sufficientterminalsshallbe
providedoneachterminalblock,sothatnotmorethanoneoutgoingwireisconnectedto per
6. Terminal strips for power and control shall preferably be separated from each other by
suitable barriers of enclosures.
7. Wiringinsidethemodulesforpower,control,protectionandinstrumentsetc.shallbedone
withuseof660/1100Vgrade,PVCinsulatedcopperconductorcablesconformingtoIS: 694 and
IS : 8130. Power wiring inside the starter module shall be rated for full current
raringofrespectivecontactor,butnotlessthan4.0sq.mm.cross-sectionarea.Forcurrent
transformercircuits,2.5sq.mm.copperconductorwireshallbeused.Othercontrolwiring
shallbedone with1.5sq.mm.copperconductorwires.Wiresforconnectionstothedoor
shallbeflexible.Allconductorsshallbecrimpedwithsolderlesssocketsattheendsbefore
connections are made to the terminals. All wires shall be FRLS grade.
8. Control power for the Motor starter module shall be taken from the respective module
switchgear outgoing. Control power wiring shall have control fuses, (HRC fuse type) for
circuit protection. All indicating lamps shall be protected by HRC fuses.
9. Particular care shall be taken to ensure that the layout of wiring is neat and orderly.
Identificationferrulesshallbefilledtoallthewireterminationforeaseofidentificationandto facilitate
checking and testing.
10. “CUPAL”washersshallbeusedforallcopperandaluminiumconnections.
11. FinalwiringdiagramofthePanelspowerandcontrolcircuitwithferrulesnumbersshallbe
submitted alongwiththePanelsas oneof the documentsagainstthe contracts.
1.Theoutgoingterminalsandneutrallinkshallbebroughtouttoacablealleysuitablylocated and accessible from the panel front. The
current transformers for instruments metering shall be mounted on the disconnecting type terminal blocks. No direct
connection of incomingoroutgoingcablestointernalcomponentsofthedistributionboardispermitted, only one conductor may be
connected in one terminal.
1. A horizontal PVC wire way with screwed covers shall be provided at the top to take interconnecting control wiringbetween
different vertical sections.
1. Engraved PVC labels shall be provided on all incoming and outgoing feeders. Single line circuit diagram showing the
arrangements of circuit inside the distribution board shall be
pastedoninsideofthepaneldoorandcoveredwithtransparentlaminatedplasticsheet.
1. AnameplatewiththePanelsdesignationinboldlettersshallbefixedattopofthecentral panel. A
separate name plate giving feeder details shall be provided for each feeder module door.
2. Inside the feeder compartments, the electrical components,equipments,accessories like
switchgear,controlgear,lamps,relaysetc.shallsuitablybeidentifiedbyprovidingstickers.
3. Engraved name plates shall preferably be of 3 ply,(Red-White-Red or Black-White-Black)
lamicold sheet. However, black engraved perpex sheet name plates shall also be
acceptable. Engraving shall be done with square groove cutters.
4. Nameplateshallbefastenedbycountersundscrewsandnotbyadhesives.
12) DANGERNOTICEPLATES:
1. The danger notice plate shall be affixed in apermanent manner on operating side of the
2. Thedanger noticeplateshallindicate danger notice bothinHindi andEnglishand with a sign
of skull and bones.
3. Thedangernoticeplate,ingeneral,meettherequirementsoflocalinspectingauthorities.
4. Overalldimensionsofthedangernoticeplateshallbe200mm.widex150mm.high.
5. Thedangernoticeplate shallbemadefromminimum 1.6mm.thick mildsteelsheetand
afterduepre-treatmenttotheplate,thesameshallbepaintedwhitewithvitreousenamel paint
on both front and rearsurface of the plate.
6. Theletters,thefigures,theconventionalskullandbonesetc.shallbepositionedonplate as per
recommendation of IS : 2551-1982.
7. Thesaidletters,the figures andthesignofskull andbones shall bepaintedin signal red colour
as per IS : 5-1978.
8. Thedangerplateshallhaveroundedcorners.Locationoffixingholesfortheplateshallbe decided
to suit design of the Panels.
9. Thedangernoticeplate,ifpossible,beofISIcertificationmark.
1.EarthingshallbeprovidedasperIS:3043-1987.
7. Allsheetsteelworkshallundergoaprocessofdegreasing,picklinginacid,cold rinsing,
phosphating, passivaiting (seven tank processing) and then painted with electrostatic
paint (Powder coating).
8. The shade of colour of panel inside/outside shall be as per BOQ confirming to IS Code
1. EngravedPVClabelsshallbeprovidedonallincomingandoutgoingfeeder.
2. Circuitdiagramshowingthearrangementsofthecircuitinsidethedistributionpanelsshall
bepastedon insideofthepaneldoorandcoveredwithtransparentplasticsheet.
1. AllvoltmetersandindicatinglampsshallbethroughMCB’s.
2. Metersandindicatinginstrumentsshallbeflushtype.
3. AllCT’sconnectionformetersshallbethroughTestTerminalBlock(TTB).
4. CTratioandburdensshallbeasspecifiedontheSinglelinediagram/BOQ.
17) CURRENTTRANSFORMERS
1. CurrenttransformersshallbeprovidedforDistributionpanelscarryingcurrentinexcessof
2. Allphaseshallbeprovidedwith currenttransformers of suitableVAburden with5amps
secondaries for operation of associated metering.
3. The CTsshall confirm torelevantIndianStandards. The designand constructionshall be
drytype,epoxyresincastrobusttowithstandthermalanddynamicstressesduringshort circuits.
4. SecondaryterminalsofCTsshallbebroughtoutsuitabletoaterminalblockwhichshallbe easily
accessible for testing and terminal connections.
5. The protection CTs shall be of accuracy class 5P10 and measurement CTs shall be of
accuracy class I.
18) POTENTAILFREECONTACTS
1.PotentialfreecontactsshallbeprovidedforconnectiontoBuildingAutomationSystemin panels indicated in Schedule of Quantities
19) INDICATINGPANEL
1. All meters and indicating instruments shall be in accordance with relevant Indian Standards. Meters shall be flush mounted
type.Indicating lamps shall be of low burden, and shall be backed up with 2 amps MCB/MPCB as per relevant fault level and
1. Testingofpanelsshallbeasperfollowingcodes:
I. IS:8623(Part-I)1977forfactorybuiltassembliesofswitchgearforvoltages upto
and including 1000 VAC.
II. IS:13947:1993Degreeofprotection
III. IS:5578&11353:1985Arrangementofbusbars.
1.Inwiringadistributionpanelitshallbeinsuredthattotalloadofvariousdistributionpanel and/or consuming devices is divided evenly
between the phases and number of ways as per Consultants drawing.
22) INSTALLATION
1. InstallationofallLTpanelsshallincludebutnotlimitedtothefollowingtocompletethe
installation, testing and commissioning:
2. Transportingmaterialsfromstorestoexactlocationofinstallation.
3. SupplyandinstallationofrequiredbaseframemadeofMSangleorchannelsectionsand duly
painted with black paint.
4. Positioning,aligning,fixing,assembling,andinstallationofLTpanelissuedfreeofcostby Client
after carrying out proper cleaning and inspection.
5. Sitesupervision,testingforproperfunctioning/operation,andpre-commissioningtests.
23) COMMISIONING&ONSITE TESTING
1. Allswitchboardsshallbetestedfordielectrictestwith1000Vmegger.
2. Allearthconnectionsshallbecheckedforcontinuity.
3. Allbusbarconnectionsshallbecheckedandtightenedproperly.
4. Allcableterminationsandterminalshroudingshallbecheckediftheyareproperlydone.
5. Theoperationofprotectivedevicesshallbetestedbysecondaryinjectiontest.
6. Theoperationofcircuitbreakershallbetestedforallinterlocks.
7. FunctionaltestshallbedoneforallACBs,MCCBsandothercomponents.
8. Indicatinglampsandmetersshallbecheckedforproperworking.
24) WORKMANSHIP:
1. Thecontractorshallerectthepanelatsiteinco-ordinationwiththesupplierifrequired.
2. Heshouldcheck for looseendsonthepart ofthesupplier andshall informclientand consultant
3. Physicalandcontinuitytestsshallbecarriedoutbycontractor.
4. Alsothefieldtestscarriedoutbythesuppliershallberecordedbythecontractor.
25) MODE OF MEASUREMENT:
1.ContractorshallbepaidforonepanelerectionasperBOQQuantitiespart.
7TECHNICALSPECIFICATIONFORLDB&PDB
1) SCOPEOF WORK
1. DistributionBoards(DBs)shallbesuitableforoperationon3Phase/single phase, 415/240
volts, 50 cycles, neutral grounded at transformer. The DB shall be minimum di-electric
strength of 1.5 KV / Sec. All Distribution Boards shall manufactured by a manufacturer
listed in Appendix-I.
2. LDB’s shall comply with the latest Relevant Indian Standards and Electricity Rules and
Regulations and shall be as per IS-13947-1991.
2) CONSTRUCTIONFEATURES
1. DB’s shall be made out of 1.6 mm thick high quality CRCA sheet steel and shall be pre-
treated and powder coated sheet steel used in the construction of LDB shall be folded
and braced as necessary to provide a rigid support for all component.
2. DBshallbesuitableforindoor/outdoorinstallation,wallmountingfreestandingtype,in double
door construction.
3. The Final Distribution Boards shall be totally enclosed,completely dustand vermin proof
and shall be with hinged doors, Neoprene gasket, padlocking arrangement.
4. All removable/ hinged doors and covers shall be grounded by 1.0 sqm tinned stranded
copper connectors.
5. Final Distribution Boards shall be suitable for the climatic conditions.Joints of any kind in
sheet metal shall be seam welded, all welding, slag shall be rounded off and welding pits
wiped smooth with plumber metal.
6. The general construction shall confirm to IS-8623-1977 (Part-1) for factory built
assembled switchgear & control gear for voltage upto and including1100 V AC.
7. Allpanels andcoversshallbeproperlyfittedandsquare withtheframe,and holes inthe panel
correctly positioned. Fixing screws shall enter into holes tapped into an adequate
thickness ofmetalorprovidedwith wingnuts.Self threadingscrewsshall notbeusedin the
construction of LDBs.
8. Knockout holes of appropriate size and number shall be provided in the LDB’s in
conformity with the location of cable/conduit connections.Detachable sheet steel gland
plates shall be provided at the top / bottom to make holes for additional cable entry at
site if required.
3) DISTRIBUTIONBOARDS SHALLCOMPRISE OFTHEFOLLOWING:
A panel for mounting where appropriate incoming supply circuit breaker & other
auxiliaries for Control & distribution as required.
Installations accessories shall be part of the DB for fixing conductor and rails for
mounting MCB’s and RCCB’s etc. Neutral bus bars & earthing bus bars required
in the circuit. All busbars in the LDB shall be insulated type.
Servicecable/interconnectionshallbepartoftheDistributionBoards.
The board shall be installed at a height such that the operating is within reach of
the normal human height i.e. 1.2 to 1.8 meters from finish floor level.
Degree of protection shall be IP-52 for indoor application, IP-54 for kitchen &
laundry and IP-55 for outdoor application.
All three phase distribution boards shall have 4 rows and single phase distribution
boards shall have single rows for housing of MCB’s and RCCB’s unless noted
Phasesegregationtobemaintainedinallthreephasedistributionboards.
EarthingshallbeprovidedineachLDB’s.
MINIATURECIRCUITBREAKER(MCB)
MCB's shall have quick make and break no welding self-wiping silver
alloy contacts for 10 KA short circuit both on the manual and
automatic operation.
Each pole of the breaker shall be provided with inversetime thermal
over load and instantaneous over current tripping elements, with trip
free mechanism.
In case of multi-pole breakers, the tripping must be on all the poles
and operating handle shall be common. Breakers must confirm to BS
3871 with facility for locking in OFF position.
Pressure clampterminalsforstranded/solid conductor insertionare
acceptable up to 4 sq.mm. Aluminium or 1.5 sq.mm.
Copper and for higher ratings, the terminals shall be suitably
shrouded. Wherever MCB isolators are specified they are without the
tripping elements.
RESIDUAL CURRENT CIRCUIT BREAKER CURRENT OPERATED TYPE(RCCB)
TheRCCBshouldsufficesalltherequirementsofISas percodeIS-12640-1988.
TheRCAshouldbecurrentoperated andnotonlinevoltage.
The RCCBshould ensuremainly the following functions:
o Measurementofthefaultcurrentvalue.
o Comparisonofthefaultcurrentwithareferencevalue.
o TheRCCBshouldhaveatorroidaltransformerwhichhasthemainconductors of
primary (P - N) which check the sum of the current close to zero.
o Allmetalpartsshouldbeinherentlyresistanttocorrosionandtreatedtomake them
corrosion resistant.
o Itshould betrulycurrent operated.
o Itshouldoperateoncorebalancetorroidaltransformer.
o Itsaccuracyshouldbe±5%.
o Itshouldoperateevenincaseofneutralfailure.
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