P/L New Systematic Drainage Line and Const. Machinhole, Chamber at Dudheshwar, Mahendikua and old Shahpur area diff. Society, Chali and pole under M.P., M.L.A., Muni. Counsilor, 70-20-10 and other budget in Shahpur ward.

Name of work :- bægÍtul Ntnvwh Jtuzobtk ytJuj œq^uµh, bnukœefwJt ylu swlt Ntnvwh rJM<thtubtk btl.

mkmœmÇg©e, Bttl. ^thtmÇg©e, btl. auhbul©eytu btl. ftWLmejh©eytu îtht Vt¤Juj csux <&t

MJrKob sgkr< bwÏgbkºte Nnuhe rJftm gtuslt (70.20.10) csux vife swœe swœe mtumtgxeytu <ubs

atjeytu ylu vtu¤btk lJe meMxubuxef z[ulus jtRl ltkFJtltk <&t bNelntuj lJt cltJJt / hevuh fhJt ylu

auBch cltJJtltk ftb ctc<. (yu.yth.me. xuLzh)

Tender Invited on Behalf of AMC, Central Zone.

Assistant Manager, Central Zone,

Central Zone Zonal Office”, B – Wing,

Third Floor,Sardar Patel Bhavan,

Danapith, Ahmedabad-380001.

AHMEDABAD MUNICIPAL CORPORATION

Notice inviting Tender

Competent authority on behalf of Municipal Commissioner of A.M.C. invites percentage rate sealed tenders

from interested contractors for the following work at different locations within the limit of A.M.C.

1 Name of work bægÍtul Ntnvwh Jtuzobtk ytJuj œq^uµh, bnukœefwJt ylu swlt Ntnvwh

rJM<thtubtk btl. mkmœmÇg©e, Bttl. ^thtmÇg©e, btl. auhbul©eytu

btl. ftWLmejh©eytu îtht Vt¤Juj csux <&t MJrKob sgkr< bwÏgbkºte

Nnuhe rJftm gtuslt (70.20.10) csux vife swœe swœe mtumtgxeytu

<ubs atjeytu ylu vtu¤btk lJe meMxubuxef z[ulus jtRl ltkFJtltk <&t

bNelntuj lJt cltJJt / hevuh fhJt ylu auBch cltJJtltk ftb ctc<.

(yu.yth.me. xuLzh)

2 Estimated Tender Amount Rs.1,49,06,765.97 (excluding of GST). GST will be paid extra by

AMC/Authority at prevailing rate to the contractor.

3 Tender fee Rs. 3600/- (Demand Draft in favour of Municipal

(Non refundable) Commissioner, Ahmedabad)

Tender Fee shall be submitted physically along with the

Physical Submission.

4 Time Limit 18 Months (Excluding Moonsoon)

5 Download of Tender Tenders from the website www.nprocure.com or shall be

Documents downloaded mentioned AS PER TENDER NOTICE INVITED .

6 Required registration Register “C” class having in Road Works in PWD in Govt. R&B /

CPWD / AMC or equivalent register with any other state Govt.

or institutions.

7 Earnest Money Deposit Rs.1,49,070.00 (Demand Draft / pay order / Bank Guarantee in

(Bid security) favour of Municipal Commissioner, Ahmedabad is to be

(1 % of Estimate put to submitted as prescribed in 10.0 below. Demand Draft/Bank

tender) Guarantee shall be from approved list of AMC of banks and the

issuing branch of bank guarantee shall be of Ahmedabad city

only and it should be valid for 120 days. E.M.D. shall be

submitted physically along with the Physical Submission.

8 Submission of EMD and Tender Fee & EMD should Submitted physically along with

Tender Fees tender documents as described in the invitation of tender

should be submitted to Assistant Manager- Central Zone, 3rd

Floor, B – Wing, Sardar Patel Bhavan, Danapith, Ahmedabad-

Bid submitted without bid security & tender fee shall be

treated as non responsive and shall be summarily rejected.

9 Mode of sending the The whole tender shall be submitted by single mode.

Tender Documents • Whole tender shall be submitted only on

www.teder.nprocure.com website as per Schedule mentioned in

Notice inviting Tender.

• Tender Fee, EMD, technical bid and other relevant PQ

Documents as per check list given in tender shall be submitted

physically in two copies (Original & duplicate) in sealed envelope as

per Schedule mentioned in Notice inviting Tender.

10 Last date of receiving As per Notice inviting Tender / Addendum / Corrigendum. The

Tenders. tenders received after latest schedule date and time will not be

entertained under any circumstances.

11 Submission of Price Bid The Price bid shall be submitted online only. The bidder shall

fill percentage rate on amount of BOQ online only until

Price Bid shall be submitted physically duly signed & seal

without mentioning quoted rated, else it shall be considered as

12 Opening of Technical bid As per Notice inviting Tender / Addendum / Corrigendum.

13 Tender validity period 120 days from the last date of submission of Tender.

14 Security Deposit 5 % of Contract Value to be submitted in the form of (Demand Draft

/ pay order / Bank Guarantee in favour of Municipal Commissioner,

Ahmedabad. Bank Guarantee shall be from approved list of AMC of

banks as per attched ANNEXURE - 1 finance dept. latest circular. and

the issuing branch of bank guarantee shall be of Ahmedabad City

only. The validity of the Security Deposit shall be up to valid till

days beyond Date of completion of work.

The Security Deposit shall be payable in 10 days (for tenders upto

Rs.10.0 Lacs) or 15 days (for tenders of Rs.10.0 Lacs and above) from

date of receipt of LOI failing which interest @ 4% per annum will be

charged by AMC.

15 Deductions from Running

a. Retention Money 2 % amount of each Running Bill shall be deducted as a Retention

Money. Such retention money shall be released in the final bill of the

b. Labour welfare cess Labour welfare cess as per the Act, 1996 (non refundable) shall be

deducted from each running bill.

16 Defect & Liability Period Not applicable in this case. If applicable than refer condition of

contract attached over rule as per form B-1 published by

17 Compansation for Delay 10 % of the actual balance work after Time limit expired.

• All the circulars which were published by Authorities of AMC time by time will be applicable on said

Tender and bound to bidder with out any condition.

• Conditional tenders will not be accepted in any case. Municipal Commissioner reserves the rights to

reject any or all the tenders without assigning any reasons thereof.

• The authorized signatory holding Power of Attorney shall only be the Digital Signatory. In case

authorized signatory holding Power of Attorney and Digital Signatory are not the same, the bid

shall be considered non-responsive.

Seal and Signature of the Bidder Additional City Engineer

Date: Ahmedabad Municipal Corporation

(On contractor’s Letter Head / certified with Stamp and Sign with Contact Detail)

TENDER DECLARATION FORM

Additional City Engineer

Ahmedabad Municipal Corporation,

Name of Work :- bægÍtul Ntnvwh Jtuzobtk ytJuj œq^uµh, bnukœefwJt ylu swlt Ntnvwh rJM<thtubtk btl.

mkmœmÇg©e, Bttl. ^thtmÇg©e, btl. auhbul©eytu btl. ftWLmejh©eytu îtht Vt¤Juj

csux <&t MJrKob sgkr< bwÏgbkºte Nnuhe rJftm gtuslt (70.20.10) csux vife swœe swœe

mtumtgxeytu <ubs atjeytu ylu vtu¤btk lJe meMxubuxef z[ulus jtRl ltkFJtltk <&t

bNelntuj lJt cltJJt / hevuh fhJt ylu auBch cltJJtltk ftb ctc<. (yu.yth.me.

I/We the undersigned have carefully gone through and clearly understood the Tender documents of

above mentioned project comprising of Notice Inviting tenders, Articles of Agreement, Scope of work,

Definition of terms, notes Instructions/Information to Bidder, Condition of Contract, special condition of

contract, Appendices, Specifications, Bill of Quantities, furnished by AHMEDABAD MUNICIPAL

I/We do hereby offer to execute and complete the whole of the work within the time specified all in

accordance with the specification, designs, drawing and instruction in writing referred to in the said

document and with such materials as mentioned for, at the respective rates which I/we have quoted in the

Price Bid or at such other rates as may be fixed under the provisions of these conditions.

In the event of this tender being accepted I/We agree to enter into an agreement and when

required, execute the contract, according to your form 1 of agreement as or in default where of I/we bound

myself/ourselves to forfeit the "Earnest Money Deposit."

I/We understand that if I/We shall not enter in agreement within fifteen days or as decided by AMC

from the date of receipt of letter of acceptance, you will forfeit the earnest money paid by me/us and take

necessary action as deemed fit.

I/We have enclosed a Demand Draft / Bank Guarantee as an “Earnest Money Deposit", for the sum

as mentioned in NIT, the full value of which is to be absolutely forfeited to the Employer If I/We fail to

commence the work specified. Otherwise the Employer shall retain the said sum, as on account of such

Security Deposit as provided for in the aforesaid documents.

I/We agree not to employ sub-contractors other than those that may be approved in accordance

with conditions in the aforesaid documents.

I/We understand that Municipal Commissioner is not bound to accept the lowest or any tender,

which are received. I / We also understand & agree that Municipal Commissioner Reserves the right to allot

number of tenders to successful bidders at his sole discretion in case if I / We am/are lowest in more than

I/We am/are bound to execute the job if the work order is issued within 120 days from the date of

opening of the tender.

I am bound to execute the work by maintaining all Quality aspects/parameters mentioned in the

tender terms and conditions. I am also bound to submit all supporting Genuine Original documents as and

when asked and if any discrepancy found in such documents as well as in the executed Work with respect to

Quality/Quantity at any stage of work or even after completion of work, it will be solely my Responsibility. I

am bound to prove originality of all documents submitted by me and if any Documents found false/fake

then Municipal Commissioner/AMC has right to take any action/penalty/punishment against me.

I am also bound that if I/we, indulged into any malpractice and/or used any inferior quality and/or

the construction of road is found to be of an inferior quality under this contract than in such case Municipal

Commissioner/AMC has right to debar/ blacklist permanently.

I/We agree to pay the Government income-Tax, GST/Sales-Tax (Central and State), Octroi duties,

Royalty on material (i.e. Aggregate, Sand etc.) And any other taxes prevailing and from time to time on such

items on which the same are leviable and the rates quoted by me/us are inclusive of the same.

Yours faithfully

Seal and Sign of Contractor

INSTRUCTIONS TO BIDDERS

1. Scope of Bid

1.1 Competent authority on behalf of The Municipal Commissioner, Ahmedabad Municipal Corporation

(referred to as Employer in these documents) invites sealed bids for the construction of works (as

defined in these documents and referred to as “the work”) detailed in the table given in the

Invitation for Bid (hereinafter called as IFB.) from competent bidder. The bidders may submit bids for

the works detailed in the table given in IFB.

2.0 Source of Funds

Ahmedabad Municipal Corporation has arranged the fund for this project.

3.0 Eligible Bidders

3.1 The Invitation for Bids is open to all eligible bidders meeting the eligibility criteria as defined in this

3.2 All bidders shall provide Qualification Information and Forms of Bid mentioned in the Clause-14. An

agency that has been engaged by the Employer to provide consulting services for the preparation or

supervision of the works, and any of its affiliates, shall not be eligible to bid.

3.3 Any entity which has been declared as non-performing by NHAI / GoG / AMC or the firms those are

blacklisted/ debarred for specified period by AMC, Governement of Gujarat, Government of India or

any other entity controlled by it, would not be eligible to submit the Bid.

4.0 Qualification of the Bidder

4.1 Requires registration :- Register “E-1” class having in Road Works in PWD in Govt. R&B / CPWD /

AMC or equivalent register with any other state Govt. or institutions.

5.0 DISQUALIFICATION

Even though the bidders meet the above mentioned qualifying criteria, they are subject to be

disqualified if they have,

• Made misleading or false representations in the forms, statements, affidavits and attachments

submitted in proof of the qualification requirements; and/or

• Record of poor performance such as abandoning the works, not properly completing the contract,

inordinate delays in completion, litigation history, or financial failures etc. or debarring from AMC

• Tampered the bid document in any manner.

• Colluded with other prospective bidders for this work to arrive at quoted prices for the purpose of

restricting competition.

• Indulged in inducement of any official of AMC and/or their consulting engineer and other advisors in

any manner whatsoever.

• Proposal not submitted in accordance with this tender.

• During validity of the proposal, or its extended period, if any, the bidder changes his commercial

• The bidder qualifies the proposal with his own conditions.

• Proposal is received after due date and time.

• Commercial proposal is enclosed with the same envelope as technical proposal

• The envelope does not show on the outside the reference of bid and thus gets opened before the

due date of opening.

• The E.M.D. is not deposited in full and in the manner as specified in the clause of Earnest Money

• The tender is in a language other than English or dose not contains its English Translation in case of

other language adopted for tender preparation.

• The tender documents received are not duly signed by authorized person.

• The validity of tender is less than what is stated in the tender.

• Any of the page or pages of tender is/are removed or replaced.

• Any condition which affect the cost.

• If it is joint venture.

5.1 Debarment / Black listing

Notwithstanding the above, the Employer may debar or blacklist any of the bidder(s) for their

misleading or false representations in the forms statements etc. for the period to be decided by the

6.0 Cost of Bidding

The bidder shall bear all costs associated with the preparation and submission of his Bid. Employer

will in no case be responsible and liable for those costs.

The Bidder, at his own cost, responsibility and risk, is encouraged to visit, examine and familiarize

himself with the site of Works and its surroundings including source of earth, water, road aggregates

etc. and obtain all information that may be necessary for preparing the Bid and entering into a

contract for construction of the Works. The costs of visiting the Site shall be at the Bidder's own

8.0 Bidders shall not have any dispute or claim for any kind of compensation in case of,

• If the quantity stipulated in the tender items varies or the scope of work changes and thereby total

amount of work increases / decreases up to any extent.

• If the works gets delayed / postponed for some administrative / technical decision whatsoever.

• If the items stipulated in the tender shall not be executed as per site condition/ requirements. No

claim shall be entertained for the same.

• No idle charges shall be paid to contractor for machinery and man power if remain idle and no claim

shall be entertained for the same.

B. BIDDING DOCUMENTS

9.0 Content of Bidding Documents

9.1 The set of bidding documents comprises the documents listed below and addendum (if any) issued.

1. Notice inviting e-Tender

2. Special conditions of Contract

3. Instructions to Bidders

4. Qualification Information

5. Conditions of Contract

6. Technical Specifications

7. Forms of Bid

8. Bill of Quantities

• The bidder is expected to examine carefully all instructions, conditions of contract, contract data,

forms, terms, technical specifications, forms, Annexes in the bid document. Failure to comply with

the requirements of bid documents shall be at the bidder’s own risk. Bids which are not substantially

responsive to the requirements of the bid documents shall be rejected.

10.0 Amendment of Bidding Documents

10.1 Before the deadline for submission of bids, the Employer may modify the bidding documents by

issuing addendum.

10.2 Any addendum thus issued shall be part of the bidding documents and shall be placed on website

www.nprocure.com The prospective bidder shall refer to website to check any addendum before

hours of opening of bids. AMC will not give any advertisement for the same.

10.3 To give prospective bidders reasonable time in which to take an addendum into account in preparing

their bids, the Employer may, at his desecration, extend as necessary the deadline for submission of

10.4 Prospective bidders should attach the addendum made for the work & if fails to do so than also the

changes made through such addendum shall be applicable & bound to the bidder.

C PREPARATION OF BIDS

11.0 Language of the Bid

All documents relating to the bid shall be in the English language only.

12.0 Documents comprising bid

The e bid submitted by the bidder shall be in two separate parts.

• Technical Bid

• Financial Bid

To qualify for award of the contract, each bidder must submit the following documents along with

• Required Registration Certificate

• Other requested documents

• Any other material / information required to be submitted in accordance with these Instructions to

Failure to submit these certificates/documents shall make the bid non-responsive.

Above original documents in physical form in two copies, one marked as “original” and other

marked as “Duplicate”, shall be submitted in a sealed envelope by 18:00 Hrs on the date of physical

submission of bid and addressed to the addressee given in the NIT duly super scribed “Name of

Work, Bid due date and time, Name and address of the bidder”

13.0 Bid Prices

• The contract shall be for the whole works as described in Bill of Quantity based on the percentage

rate in the Bill of Quantities submitted by the bidder..

• All duties, taxes, and other levies payable by the contractor under the contract, or for any other

cause shall be included in the rates, prices and total Bid Price submitted by the Bidder, except

otherwise stated in the Bid document. Employer will not compensate the bidder (contractor) for

any change in duties, taxes and other levies payable by the contractor under the contract and any

• The percentage rate and bid price quoted by the bidder shall be fixed up to the completion of Work

and shall not be subject to adjustment on any account, except where expressly specified, otherwise,

in the contract.

14.0 Currencies of Bid and Payment

The currency of bid and payment shall be in Indian Rupees. All payments shall be made in Indian

15.0 Bid Validity

15.1 Bids shall remain valid for 120 days from last date of submission of tender. A bid valid for a shorter

period shall be rejected by the Employer as non-responsive.

15.2 In exceptional circumstances, prior to expiry of the bid validity (120 days), the Employer may request

that the bidders may extend the period of validity for a specified additional period. The request and

the bidders' responses shall be made in writing or by cable. A bidder may refuse the request without

forfeiting his bid security. A bidder agreeing to the request will not be required or permitted to

modify his bid, but will be required to extend the validity of his bid security for a period of the

16.0 Earnest Money / Bid Security

16.1 The Bidder shall furnish, a Bid Security of the amount as shown in the Table of IFB as part of his bid,

in the form of Demand Draft / pay order / Bank Guarantee in favour of Municipal Commissioner,

Ahmedabad valid for 120 days.

16.2 The issuing branch of the bank guarantee shall be of Ahmedabad / Gandhinagar City only.

A. As per Government of Gujarat G.R. No. - FD/MSM/e-file /4 /2023/ 4020/D.M.O. Date: 11/03/2024 &

Circular of Finance Department, AMC no. 10 Date: 05-08-2024, approved Banks are Guarantees

issued by following banks will be accepted as SD/EMD on permanent basis.

 All nationalized Banks

B. Guarantees issued by following banks will be accepted as SD/EMD for the period up to March-

2025. The validity cut-off date in the GR is with respect to the date of issue of Bank Guarantee

irrespective of the date of termination of Bank Guarantee.

1. Commercial Banks :-

1. A U Small Finance Bank

3. Bandhan Bank

4. City Union Bank

6. DBS Bank India Limited

8. Equitas Small Finance Bank

9. Federal Bank

14. IDFC First Bank

15. IndusInd Bank

16. Jana Small Finance Bank

17. Karnataka Bank

18. Karur Vysya Bank

19. Kotak Mahindra Bank

20. South Indian Bank

21. Tamilnadu Mercantile Bank

22. Utkarsh Small Finance Bank

2. Co-operative and Rural Banks Of Gujarat :-

1. The Ahmedabad Mercantile Co-operative Bank Limited

2. Kalupur Commerical Co-operative Bank Limited

3. Nutan nagrik Sahakari Bank Limited

4. Rajkot Nagarik Sahakari Bank Limited

5. Saraswat Co-operative Bank

6. SVC Co-operative Bank

7. The Cosmos co-opretive Bank

8. Baroda Gujarat Gramin Bank

9. Saurashtra Gramin Bank

10. The Gujarat State Co-Operative Bank

11. The Mehsana Urban Co-operative Bank Limited

12. The Surat District Co-operative Bank

13. The Surat Peoples Co-operative Bank

16.3 Any bid not accompanied by an acceptable Bid Security shall be rejected by the Employer as non-

16.4 Any bid having bid security for lesser value and shorter validity period shall be treated as non-

16.5 (a) The bid security of the unsuccessful bidders, except for L1, L2 and L3 bidders will be returned as

promptly as possible.

(b) The bid security of the successful bidder, along with second and third lowest tenders, will be

returned when the successful bidder has furnished the required security deposit and signed the

16.6 The Bid Security of the Successful Bidder will be discharged when the bidder has signed the

Agreement and furnished the required security deposit.

16.7 The Bid Security shall be forfeited,

a) if the Bidder withdraws the Bid after Bid opening during the period of Bid validity;

b) in the case of a successful Bidder, if the Bidder fails within the specified time limit to

(i) sign the Agreement; or

(ii) Furnish the required security deposit.

(iii) commence the work after signing the agreement within 15 days

16.8 No interest shall be paid by the owner on any tender guarantee. The issuing branch of the bank

guarantee shall be of Ahmedabad City only.

16.9 Bank Guarantee for Earnest Money Deposit should be executed on non-judicial Stamp papers of

requisite value in accordance with the stamp Act applicable to that particular state of Indian Union,

where executed.

16.10 The executing officers of the bank Guarantee for Earnest Money Bid Security shall clearly indicate in

(block letters) his name, designation, Power of Attorney No. / Signing Power No. etc.

16.11 Each page of the bank guarantee for Earnest Money Deposit shall be duly signed/initialed by the

executing officers and the last page shall be signed in full, indicating the particulars as aforesaid

under the seal of the Bank.

D. SUBMISSION OF BIDS

17.0 Sealing and Marking of Bids

17.1 The bidder shall submit the Technical Bid only. The Bid shall be sealed in separate envelopes and the

three sealed envelopes shall be sealed in an outer envelope. The Bid envelopes shall be marked as

• Complete Tender Document with stamp all necessary qualification related documents (in two copy)

Above two envelopes shall be kept in one envelope and it should be marked as “Technical Bid” and

sealed. This Outer envelope should mention the name of firm of bidder, his address, contact details

& name of the work.

17.2 The inner and outer envelopes

a) Shall be addressed to the Employer at the following address:

Assistant Manager- Central Zone,

3rd Floor, B – Wing, Sardar Patel Bhavan,

Danapith, Ahmedabad-380001.

c) Bear the following identification:

Indicate the name and address of the bidder.

• If the outer envelope is not sealed and marked as above, the Employer will assume no responsibility

for the misplacement or premature opening of the bid.

18.0 DEADLINE FOR SUBMISSION OF THE BID

18.1 Complete Bids (including Technical bid and necessary documents) must be received by the Employer

at the address specified in bid information not later than the date indicated on the face sheet of the

document. In the event of the specified date for the submission of bids declared a holiday for the

Employer, the Bids will be received up to the appointed time on the next working day. The Bidder is

further required to submit Documents in Physical Form on or before the Bid Due Date and before

the time of submission as specified in NIT, at the following address:

Assistant Manager- Central Zone,

3rd Floor, B – Wing, Sardar Patel Bhavan,

Danapith, Ahmedabad-380001.

18.2 AMC assumes no responsibility for inability of a bidder to submit bids through (n) procure e-

tendering portal on account of delay in submission at bidder's end. Bidder shall ensure that they

submit the bid well before the "Due Date & Time of Bid- Submission". AMC shall not be responsible

if bidder is not able to submit the bid on account of failure in network/internet connection or any

other technical reason.

18.3 The Employer may extend the deadline for submission of bids by issuing an amendment in

accordance with respective Clause, in which case all rights and obligations of the Employer and the

bidders previously subject to the original deadline will then be subject to the new deadline.

18.4 All bidders are requested to see the website of (n) procure for amendment / corrigendum if any.

18.5 Any Bid received by the Employer after the deadline prescribed in NIT will be rejected and returned

unopened to the bidder.

Any Bid received by the Employer after the deadline prescribed in NIT will be returned unopened to

20.0 NOTIFICATION OF AWARD & SIGNING OF AGREEMENT

The Bidder whose Bid has been accepted will be notified of the award by the Employer prior to

expiration of the Bid validity period by writing, facsimile or e-mail confirmed by registered letter.

This letter (hereinafter and in the Conditions of Contract called the “Letter of Acceptance” will state

the sum that the Employer will pay the Contractor in consideration of the execution, completion,

and maintenance of the Works by the Contractor as prescribed by the Contract (hereinafter and in

the Contract called the “Contract Price”).

The notification of award will constitute the formation of the Contract, subject only to the furnishing

of a Security Deposit in accordance with the provisions of Clause.

The agreement will incorporate all correspondences between the Employer and the Successful

Bidder. It will be signed by the Employer and the Successful Bidder.

21.0 SIGNING OF CONTRACT AGREEMENT

21.1 The Employer and the successful bidder shall enter into a Contract Agreement within 28 days after

the successful bidder (hereinafter called the Contractor) receives the Letter of Acceptance, unless

they agree otherwise, subject to furnishing the security deposit before signing the Agreement with

21.2 Upon issue of ‘Letter of Acceptance’ to the successful Bidder, the Employer will promptly notify the

other Bidders that their Bids have been unsuccessful and release their Earnest Money Deposit / Bid

22.0 SECURITY DEPOSIT

22.1 Within 15 days of receipt of the Letter of Acceptance, the Successful Bidder shall deliver to the

Employer a security deposit in the form of Bank Guarantee for an amount equivalent to 5% of the

Contract Price valid for the period of valid till 90 days beyond Date of completion of work. The

Security Deposit shall be payable in 10 days (for tenders upto Rs.10.0 Lacs) or 15 days (for tenders of

Rs.10.0 Lacs and above)from date of receipt of LOA failing which interest @ 4% per annum will be

charged by AMC.

22.2 The security deposit shall be in the form of a Bank Guarantee in the name of the Employer, from

Ahmedabad branch of any Banks mentioned in the clause no. 16.2 of these tender documents.

22.3 This security deposit shall be released only after the clearance of final bill including pre & post Audit.

22.3 Interest @ 4 % per annum shall be deducted from contractor in case of late submission of security

deposit or late renewal of bank guarantee for the number of days delayed for submission or

discontinuity of the bank guarantee.

22.4 Bank Guarantee to be submitted in the prescribed format enclosed and shall be same verbatim as

per the format. Bank Guarantee shall be submitted on right value of stamp paper and for correct

value of contract.

22.5 Failure of the Successful Bidder to comply with the requirements of Sub-Clause 22.1 shall constitute

sufficient grounds for cancellation of the award and forfeiture of the Bid Security.

22.6 In case of any contract amendment during execution of the contract enhancing value of the contract

the BG value shall be enhanced accordingly. Validity of BG shall be commercial terms and conditions

22.7 All compensation or other sums of money payable by the Contractor to the Employer under the

terms of this Contract or any other contract or on any other account whatsoever may be deducted

from Security Deposit. Also in the event of the Contractor's Security Deposit being reduced by

reasons of such deductions, as aforesaid, the Contractor shall, within 14 days of receipt of notice of

demand from the Engineer-in-Charge, make good the deficit in Security Deposit.

22.8 Should there arise any occasion under the Contract due to which the periods of validities of Bank

Guarantees as may have been furnished by the Contractor from time to time, are required to be

extended/renewed, the Contractor shall get the validity periods of such guarantees

extended/renewed, and furnish these to the Engineer-in- Charge one month before the expiry date

of the aforesaid Guarantees originally furnished failing which the existing Bank Guarantees shall be

invoked by the Engineer – in – charge. Also in case of any deficit in securities on any account as

might occur or is noticed, the Contractor shall forthwith recoup/replace the same with acceptable

Security Deposit.

22.9 The Bank Guarantee shall be extended within the expiry dates wherever activities as per contract are

not completed in all respects.

22.10 The Security Deposit less any amount due shall, on demand, be returned to the contractor after

days of completion date / Final Bill paid date which ever is later. No interest on the amount of

Security Deposit shall be paid to the Contractor at the time of release of Security Deposit as stated

22.11 The successful bidder to whom ‘LOA’ has been issued shall enter into an agreement at Employer’s

office within 15 days of LOA.

23.0 Advance Payment and Security

The Employer will not provide any advance payment.

24.0 Dispute Review Expert

In case of all the disputes, decision of the Municipal Commissioner, Ahmedabad shall be final and

binding to the bidder.

25.0 LITIGATION HISTORY

The applicant should provide accurate information on litigation and/or arbitration resulting from

Contractors completed or under execution by him over last five years. If the details of Litigation

History are hidden by the Bidder and later on it comes to the knowledge of the Employer, the Bidder

shall be disqualified for the proposed work and other appropriate actions shall be taken against the

DETAILS OF COMPLETED / ONGOING LITIGATION / ARBITRATION

Value of showing

Name of Reasons/Details for

Year Employer the Project

Project litigation/arbitration Present Status

 The bidder shall furnish separate table for individual project.

 The above information shall be supported with necessary documents otherwise the same shall be

treat as null and void.

 A consistent history of arbitration awards? Judgments against the applicants or any partner of a joint

venture may result in disqualification for proposed work.

 If the details of litigation History is hidden by the applicant and later on it comes to knowledge of the

employer the bidder shall be disqualified for the proposed work and other appropriate actions shall

be taken against the bidder.

Seal and Signature of the Bidder Additional City Engineer

Date: Ahmedabad Municipal Corporation

GENERAL CONDITIONS OF CONTRACT

1.0 Liquidated Damages

1.1 If the Contractor fails to complete the works within the original or extended time limit, the

Contractor shall pay penalty of 10% of amount of actual remaining work. The amount of work for

which the scope of contractor is reduced shall not be considered for the calculation of Liquidated

1.2 Conditions mentioned in the AMC Finance Department Circular AMC no. 18 Date: 23/05/2017

and all latest Circulars shall be applicable.

2.0 Retention Money

2 % amount of each Running Bill shall be deducted as a Retention Money. Such retention money

shall be released in the final bill of the said work. AMC reserves right to deduct any amount to

compensate the poor performance of the contractor i.e. poor quality or abandoned / incomplete

3.0 Subcontracting

3.1 Except where expressly specified in the Contract, the Contractor shall not subcontract any

portion of Work without the approval of the Employer’s Representative. Any subcontracting shall

not relieve the Contractor from any contractual obligations or responsibility under the Contract.

3.2 The Contractor shall not be required to obtain consent for a subcontract for which the name of

the subcontractor and scope of works activities to be performed by him is already stated in the

contract or supply of material or engagement of labour.

4.1 The Contractor shall employ the key personnel named in the Schedule of Key Personnel as

referred to in the Bid document to carry out the functions stated in the Schedule or other

personnel approved by the Engineer. The Engineer will approve any proposed replacement of key

personnel only if their qualifications, abilities, and relevant experience are substantially equal to

or better than those of the personnel listed in the Schedule.

4.2 If the Engineer asks the Contractor to remove a person, without assigning reasons thereof, for his

misconduct or inadequacy of technical skills and experience, who is a member of the Contractor’s

staff or his work force, the Contractor shall ensure that the person leaves the Site within seven

days and has no further connection with the work in the Contract.

4.3 No residential accommodation is allowed at the site of work. The labour huts shall not be erected

on the site of work and contractor shall make his own arrangements to provide such

accommodations as per the rules of the local bodies. He shall make his own arrangements for

housing, stores, field office etc. He shall submit a site layout plan indicating the location of

various site facilities to be created by him at his cost for the execution of work. The Owner shall

in no way be responsible for any delay on this account and no claim on this account whatsoever

shall be entertained. All Basic amenities shall be provided by the Contractor to Labours as per the

prevailing labour Laws.

5.1 The Contractor shall have full regard throughout execution, completion and defects liability

period to following safety aspects and shall take all necessary steps to ensure that danger to

safety is avoided all the time in respect of,

Safety of the works

• Safety of the Contractor’s employees and all the persons directly or indirectly engaged by him for

• Safety of all the employees including persons working on other contracts of Employer at the

same site of the Employer and Engineers employees engaged at work site.

• Any authorized third party persons on the site.

• Contractor’s plant and equipment

5.2 The Contractor shall provide and maintain at his costs all lights, guards, fencing, warning signs,

barricading, and cones; when and where necessary, or required by Engineer in Charge or by any

duly constituted authority for the protection of the works or for the safety and convenience of

the public or other.

5.3 The Contractor shall take all reasonable steps to protect the environment on and off the site and

avoid damage or nuisance to persons or property of the public and others arising as a

consequence of his method of operation.

5.4 The Contractor shall maintain in good condition all work throughout execution, completion, and

defects liability period. The contractor shall be responsible for and to make good all injuries,

damages and repairs, rendered necessary by fire, rain, traffic, floods or other causes.

5.5 All the scaffolding work, wherever required for the execution of work, shall be provided by the

contractor. Nothing extra shall be payable on this account. It shall be provided strictly with

double scaffolding system with all the accessories etc. with adjustable suitable working platforms

to access the areas, with ease for working and inspection. It shall be designed to take all

incidental loads. It should cater to the safety features for workmen. It shall be ensured that no

damage is caused to any structure due to scaffolding.

5.6 All temporary warning/ caution boards display shall be provided and displayed during day as well

as night time by the contractor, wherever required and as directed by the Engineer.

5.7 Arrangement of temporary water and electricity and telephone connection required, by him,

shall be made by the Contractor at his own cost and also necessary permissions directly from

relevant Owners shall be obtained by him under intimation to the Owner. Also all initial and

running charges and security deposit, if any in this regard shall be borne by him. The Contractor

shall abide by all the rules/ bye laws applicable in this regard and he shall be solely responsible

for any penalty on account of violation of any of the rules and byelaws in this regard.

5.8 In any case if any fatal accident (major or minor) occurs due to poor safety precautions, the same

shall be completely contractor’s responsibility. All the losses due to such accidents and expenses

of legal matters shall be borne by contractor.

5.9 The Contractor shall be responsible for maintenance and watch and ward of the complete

installation and shall also be responsible for any pilferage, theft, damage, penalty etc. in this

regard. The Contractor shall indemnify the Owner against any claim arising out of pilferage /

theft, damage, penalty etc. whatsoever on this account.

5.10 The Contractor shall depute Site Engineer & skilled workers as required for the work. Necessary

protective and safety equipments shall be provided to them by the Contractor at his own cost

and used at site.

6.0 Contractor to keep site clean:

During the execution of the work, the Contractor shall keep the site clean. All wreckage rubbish,

excess materials, temporary works no longer required will be removed from site immediately.

7.0 Clearance of site on completion:

The Contractor shall clear away and remove all Contractors equipment, surplus materials,

rubbish, temporary works of every kind.

A. COST CONTROL

8.0 Bill of Quantities

a. The schedule-B shall contain Memorandum showing items for the construction, installation,

testing, and commissioning work to be done by the Contractor.

b. The quantities stated in the schedule B are estimated quantities. The Contractor shall be paid

only quantities calculated after taking measurements of executed work. The rate stated in the

schedule B for each item of work shall apply. The works shall be measured by the Contractor

jointly with the authorized representative of the Engineer and all particulars required by the

representative of the Engineer shall be supplied by the contractor.

c. The work shall be measured net. No allowance for general or local custom, working space etc. is

9.1 The Engineer in Charge shall have power to make any variation of form, quality or quantity of the

works or any part thereof that may, in his opinion, be necessary and for that purpose, or if for

any other reason it shall, in his opinion, be appropriate, he shall have the authority to instruct the

Contractor to do and the Contractor shall do any of the following:

 Increase or decrease the quantity of any work up to any extent included in the contract,

 Omit any such work,

 Change the character or quality or kind of any such work,

 Execute additional work of any kind necessary for the completion of the Works or

 Change any specified sequence or timing of construction of any part of work.

9.2 No such variation shall in any way vitiate or invalidate the contract, but the effects, if any, of all

such variations shall be valued in accordance with the following sub clauses. Provided that where

the issue of an instruction to vary the Works is necessitated by some default or breach of

contract by contractor or for which he is responsible, any additional cost attributable to such

default shall be borne by the Contractor.

9.3 The Contractor shall not make any such variation without an instruction of the Engineer. No

instruction is required for quantities varying from those provided for the items in the contract

10.1 The basis for the valuation of variations for addition to the Contract Price shall be as follows in

the same order of priority.

a) Variations in the quantities of work in schedule of quantities shall not vitiate the contract.

b) The contractor shall be bound to execute extra items of work as directed by the Engineer-in-

c) Contract unit rates for individual items shall apply to varied quantities where there is a quantity

d) The price variations on extra item will not be given.

e) In case of other non tender items following procedure shall apply.

10.2 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 Employer which shall be fixed as lowest of the

rates derived by rate analysis based on the following three methods. , the priority of the

documents forming the Contract shall be as follows:

(i) If the extra item is included in the S.O.R. of Road & Building Department, Year 2021-22, the rate

of extra item shall be that rate and premium (above or below) quoted by contractor.

(ii) Rate analysis based on prevailing Govt. of Gujarat’s SOR rates.

(iii) Rate analysis based on current market rates. This shall be based on

 The material costs, the labour costs, the cost of use of all plant, machinery and equipment, the

cost of all temporary and incidental works, the overheads and the Contractors profit.

 The overheads shall be taken at 5 % of the sum of material costs, the labour costs, the cost of use

of all plant, machinery, and equipment, the cost of all temporary and incidental works.

10.3 In case of the rate is to be derived from prevailing market rate, the Contractors profit shall be

taken at 10 % of the final rate derived.

10.4 In the event of disagreement, the Engineer in Charge shall fix such rates and prices as are, in his

opinion appropriate and shall notify the Contractor accordingly with a copy to the Employer.

10.5 The Engineer shall determine provisional rates and prices to enable on account payments to be

included in the Interim Payment Certificates, until rates and prices are agreed as final by the

Employer, the Contractor, and the Engineer.

10.6 The Contractor shall not be entitled to additional payment for costs, which could have been

avoided by giving early warning.

11.1 Payments shall be adjusted for deductions for advance payments, retention, other recoveries in

terms of the contract and taxes at source, as applicable under the law. The Employer shall pay

the Contractor the amounts certified by the Engineer.

11.2 If an amount certified is increased in a later date certificate due to corrections in previous

certificates or as a result of an award from disputes review experts, Contractor shall be paid such

amount only. The Contractor shall not be paid any interest upon such delayed payment.

11.3 Items of the work for which no rate or price has been entered in will not be paid for by the

Employer and shall be deemed covered by other rates and prices in the Contract.

11.4 All payments shall be made in Ahmedabad.

12 Taxes and duties

12.1 The rates are inclusive of all the prevailing taxes and duties of the Central, State and Local

Governing bodies prevailing on the date of award of the contract. The Contractor will have to pay

all such taxes and duties for the performance of this Contract. The Employer will deduct from the

Contractor’s monthly and other payments all taxes and duties, which he is bound to recover in

accordance with the applicable law.

12.2 The Contractor shall keep himself fully informed of all acts and laws of the Central & State and

local Governing bodies, all orders, decrees of bodies, tribunals having any jurisdiction or authority

which in any manner affect those engaged or employed, and anything related to carrying out the

work. All the bye-laws lay down by AMC/AUDA and any other local bodies while executing the

work shall be adhered to. All taxes of local bodies shall be borne by the contractor. The

Contractor shall arrange to give all notices required by any authority and to pay to such authority

all the fees that may have to be paid for the material, plants, equipments etc. The Contractor

shall also adhere to all traffic restrictions notified by the local authorities. He shall protect and

indemnify the Owner and its officials & employees against any claim or liability arising out of

violations of any such laws, ordinances, orders, decree, whether by himself or by his employees

or his authorized representatives. Nothing extra shall be payable on these accounts.

13.0 Labour Welfare Cess

As per circular No. GHR/2005/04/CWA/2004/841/M-3 dt. 3/1/05 and G.R. No. CWA/2004-1831-

M(3) dt. 9/12/05 issued by G.O.G. (non-refundable) shall be deducted from every bills which shall

be deposited to Govt. Labour Department for Labour welfare fund.

14.0 Currencies

All payments shall be made in Indian Rupees.

15.0 Advance Payment

No Advance Payment shall be made.

16.0 Cost of Repairs

Loss or damage to the Works or Materials to be incorporated in the Works between the Start

Date and the end of the Defects Correction periods shall be remedied by the Contractor at the

Contractor's cost if the loss or damage arises from the Contractor's acts or omissions.

B. FINISHING THE CONTRACT

17.0 Completion

The Contractor shall request the Engineer to issue a Certificate of Completion of the Works and

the Engineer will do so upon deciding that the Work is completed.

18.0 Termination

18.1 The Employer shall be entitled to terminate the contract if the contractor:

(a) Fails to carry out any obligation under the contract.

(b) Without reasonable excuse fails –

1. To commence the works on site within the period stated in the Appendix to Bid after receipt by

him of a Notice to this effect from the Engineer/Employer after signing the agreement or

2. To proceed with the works, or any section thereof, within 28 days after received notice

3. Has failed to comply with a notice issued or an instruction issued within 28 days after having

4. Abandons the works or otherwise plainly demonstrates the intention not to continue

performance of his obligation under the contract.

5. Sub-contracts the works or assigns the contract without the specific prior written permission of

6. Has failed to furnish the required securities or extension thereof in terms of the contract.

7. Becomes bankrupt or insolvent, goes into liquidation, has a receiving or administration order

made against him, compounds with his creditors, or carries on business under receive, trustee or

manager for the benefit of his creditors, or if any act is done or event occurs which (under

applicable Laws) has a similar effect to any of these acts of event.

18.2 In any of these events or circumstances, the Employer may, upon giving 14 days notice to the

contractor, terminate the contract and expel the contractor from the site. However, in the case

of sub-paragraphs (h), the Employer may be notice terminate the contract immediately.

18.3 The Employer’s decision to terminate the contract shall not prejudice any other rights of the

Employer, under the contract or otherwise.

18.4 After termination, the Employer may complete the works and/or arrange for any other entities to

do so. The Employer and these entities may then use any goods, contractor’s documents and

other design documents made by or on behalf of the contractor.

18.5 The Employer or the Contractor may terminate the Contract if the other party causes a

fundamental breach of the Contract.

18.6 Fundamental breaches of Contract include, but shall not be limited to the following:

(a) the Contractor stops work for 14 days when no stoppage of work is shown on the current

Program and the stoppage has not been authorized by the Engineer;

(b) the Employer or the Contractor is made bankrupt or goes into liquidation other than for a

reconstruction or amalgamation;

(c) The contractor fails to fulfill requirements;

(d) the Engineer gives Notice that failure to correct a particular Defect is a fundamental breach of

Contract and the Contractor fails to correct it within a reasonable period of time determined by

(e) the Contractor does not maintain a security which is required;

(f) the Contractor has delayed the completion of works by the number of days for which the

maximum amount of liquidated damages becomes payable as defined in the Contract data;

(g) if the Contractor, in the judgment of the Employer has engaged in corrupt or fraudulent practices

in competing for or in the executing the Contract.

(h) For the purpose of this paragraph: “corrupt practice” means the offering, giving, receiving or

soliciting of anything of value to influence the action of a public official in the procurement

process or in contract execution. “Fraudulent practice” means a misrepresentation of facts in

order to influence a procurement process or the execution of a contract to the detriment of the

Borrower, and includes collusive practice among Bidders (prior to or after bid submission)

designed to establish bid prices at artificial non-competitive levels and to deprive the Borrower of

the benefits of free and open competition.”

18.7 When either party to the Contract gives notice of a breach of contract to the Engineer for a cause

other than those listed above, the Engineer shall decide whether the breach is fundamental or

18.8 Notwithstanding the above, the Employer may terminate the Contract for convenience.

18.9 If the Contract is terminated the Contractor shall stop work immediately, make the Site safe and

secure and leave the Site as soon as reasonably possible and handover the site to the Employer

including all materials and plant and equipment existing there upon.

19.0 Contractor's own responsibility

The contractor is to set out and level the works and will be responsible for the accuracy of the

same. He shall also be responsible for the correctness of the positions, levels, dimensions, and

alignment of all parts of the structures as per instructions given to him. If at any time any error

shall appear during the progress of any part of the work, the contractor shall at his own expense

rectify such error if called upon to the satisfaction of the Engineer in charge.

20.0 Overpayment & Underpayment

20.1 Whenever any claim Fifths payment of a sum to the Municipal Corporation arises out of or

under this Contract against the contractor the same may be deducted by the Municipal

Corporation from any sum then due or which at any time thereafter may become due to the

contractor under this contract and failing that under any other contract with the Municipal

Corporation or from any sum due to the contractor with the Municipal Corporation (which may

be available with Municipal Corporation), or from his retention money, or he shall pay the claim

on demand. The Municipal Corporation reserves the right to carry out post payment audit and

technical examination of the final bill including all supporting vouchers, abstracts, etc.

20.2 The Municipal Corporation further reserves the right to enforce recovery of any over payment

when detected notwithstanding the fact that the amount of the final bill may be included by the

20.3 If as a result of such audit and technical examination any over payment is discovered in respect

of any work done by the Contractor or alleged to have been done by him under the contract, it

shall be recovered by the Municipal Corporation from the contractor by way of all the means

prescribed above or if any under payment is discovered by the Municipal Corporation, any

amount due to the contractor under this contract or under payment may be adjusted against any

amount then due or which may at any time thereafter become due before payment is made to

the contractor from him to the Municipal Corporation on any other contract account whatsoever.

21.0 Materials obtain from dismantling

If the contractor, in the course of execution of work is called upon to dismantle any part for

reasons other than on account of bad or imperfect work, the materials obtained from dismantling

will be the property of the A.M.C. and will be disposed of as per instruction of Engineer-in-charge

in the best interest of the A.M.C.

22.0 Dispute to be referred to Arbitrator

The disputes relating to this contract, so far as they relate to any of the following matters,

whether such disputes arise during the progress of the work or after the completion or

abandonment thereof, shall be referred an independent Arbitrator appointed by AMC as far

possible in consultation with the agency if it is necessary and such disputes shall be settled in

accordance with the arbitration and conciliation Act.

(i) The rates of payment under clause 5 for any tools, materials and stores, in or upon the works of

the site thereof or belonging to the contractor or procured by him and intended to be used for

execution of the work or any part thereof possession of which may have been taken by the

Engineer-in-charge under the said clause –5.

(ii) The reduction in rates made by the Engineer-in-charge under clause 9 from the items of works

not accepted as completed fully in accordance with the sanctioned specifications.

(iii) The rate of part of payment for any class of work which is included in the additional or altered

work carried out by the contractor in accordance with the instructions of the Engineer-in-charge

under clause 14 and the rates for which is to be determined under the said clause

(iv) The rates of payment for materials already purchased or agreed to be purchased by the

contractor before receipt of notice given by the Engineer-in-charge under clause 15 and/or

amount of compensation payable to the contractor under the said clause for loss in respect of

such materials.

(v) The amount of compensation which the contractor shall be liable to pay under clause 17 in the

event of this failure to rectify, remove or reconstruct the work within the period specified in the

written intimation or the amount of expenses incurred by the Engineer-in-charge under the said

clause17 in rectifying, removing or re-executing the work or in removing and replacing the

materials or articles complained of.

(vi) The reduction of rates as may be fixed by the Engineer-in-charge under clause 17 for the inferior

work or materials as accepted or made use of.

(vii) The amount of compensation payable by the contractor for damages as estimates and assessed

(viii) The amount payable to the contractor for the work carried out under clause 33 in accordance

with the instructions and the requirement of the Engineer-in-charge in case where there are no

specifications.

(ix) The awards declared by the arbitrator shall be speaking award giving reasons and calculations to

every item of claims. The decision will have to be implemented by all the concerned.

(x) In case of dispute leading to the contractor or Ahmedabad Municipal Corporation approaching on

Court of Law. It shall be within the jurisdiction where the site of work is situated.

The reference to arbitration proceeding under this clause shall not:

i) Entitle the contractor to stop the Affect the right of the Engineer-in-charge under clause 5 to take

possession of all or any tools, plants, materials and stores in or upon the works of site thereof

belonging to the contractor or procured by him and intended to be used for the execution of the

work or any part thereof.

ii) Preclude the Engineer-in-charge from utilizing the materials purchased by the contractor in any

work or from removing such materials to other places, during the period the work is stopped or

suspended in pursuance, of notice given to the contractor under clause

iii) Progress of the work or the carrying out the additional or altered work in accordance with the

provisions of clause 14 or as the case may be, of clause

23.0 Drawings and Photographs of the Works

23.1 The contractor shall do photography/ videography of the site as and when asked by AMC. No

separate payment will be made to the contractor for this. . The contractor shall have to submit

the same in hard copy as well as soft copy as and when demanded by the AMC.

23.2 No photograph of the works or any part thereof or plant employed thereon, except those

permitted under clause 59.1, shall be taken, or permitted to be taken by the Contractor or by any

of his employees or any employees of his sub-Contractors without the prior approval of the

Engineer in writing. No photographs/ videography shall be published or otherwise circulated

without the approval of the Engineer in writing.

Seal and Signature of the Bidder Additional City Engineer

Date: Ahmedabad Municipal Corporation

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btdoœNol btxu mtbtLg rlgbtu ylu mwaltytu vK ft¤SvwJof JtkaJt rJlk<e Au.

(1) ftuEvK fthK œNtoÔgt rmJtg ftuEvK fu c^t xuLzhtu yMJefthJtltu n¬ yctr^< hnu Au.

(h) xuLzhhu ctujvtuELx vullt c>ju NtneJt¤e vul&e Chujt xuLzhtu ðþkh< s ybtLg dKJtbtk ytJNu.

c:- Wvhle ctc<tu Wvhtk< xuLzh leault mkstudtubtk <h< ybtLg XhJtlu vtºt &Nu.

(1) xuLzh Chlth, rlg< ftb y&Jt ftb btxu bkswh fhuj y&Jt CtJ vºtflt ftuR ftuz y&Jt vîr<

y&Jt rJd<tubtk bwfuj Nh< y&Jt mw^thtbtk ftuR VuhVth mwaJ<t ntug.

(h) xuLzhlwk ftuR vtlwk fu vtlt ftZe ltkÏgwk/ltkÏgt ntug fu cœÕGþ / cœÕgt ntug.

(3) c^t mw^tht J^tht y&Jt atukxtzuje ftvjeytu Wvh xuLzh Chlthu xwkfe mne l fhe ntug.

(4) xuLzhbtk <ubKu ftuR AufAtf fhe ntug, ylu

(5) xuLzh Chlth y&Jt vuZele ctc<btk œhuf Ctdeœth y&Jt <u ykdulwk bwFðgthltbwk ^htJlth Ôgrf<

mne l fhu y&Jt xuLzhbt <u btxu htFJtbtk ytJuje søgtbtk mne/mneytu Wvh ftuR mtûteyu mtF fhe

f:- Nh<e xuLzh MJefthJtbtk ytJNu lne.

z:- xuLzh MJefthJw, hœ fhJw, ftulu ytvJw ylu fgt CtJ&e ytvJw <u ykdu Bgwrl. frb§h©eltu rlKog

ytFhe hnuNu. ftuR fthKmh stu ftuLx[tfxhlu ftb l ytve Nftg <tu <u ykdu ftuLx[tfxh ftuRvK «fthltu

lwfNtle fu J¤<hltu nff œtJtuu fhe NfNu lrn fu ftgœtfeg ftgoJtne yt ykdu &R NfNu lrn. xuLzh

bkswh &gtltu y&o ftb ytve œuJtLþk Au <uJtu &R NfNu lrn.Nh<e xuLzh MJefthJtbtk ytJNu lne.

(9) rJmkdr< ylu rnmtc stud:

nt& ^hJtlt ftbtule ctc< œNtoJ<t CtJ vºtfbtklt sÚ&t ylu hfble ftuRvK Cwjawf

leault rlgbtu ylwmth mhCh fhJtbtk ytJNu.

(1) xuLzh Chlthu œhuf Ftltbtk sKtJuj Nçœtu ylu ytkfzt Jåau ftuR ymkdr<lt fumbtk Nçœtuubtk sKtJuj

hfb btLg htFJtbtk ytJNu.

(2) yufb œh ylu sÚ&tlt Ftuxt dwKtfthlt fthKu ftble ctc<tu œNtoJ<e CtJ vºtflt Ftltbtk&e

hfbbtk Cwj sKtg <tu yufb œh btLg htFJtbkt ytJNu ylu œhlt yt^thu dwKtfth mw^thJtbkt

(3) yufblt Ftltbtk&e <ubs ytd¤ Fuka<t mhJt¤tle <btb Cwjtu mw^thJtbkt ytJNu.

(4) ctc<tu y&Jt mhJt¤t mtbu vwhu ytkfzu fhuj ftuR vK ctc< ægtlbtk juJtbtk ytJNu lrn.

(10) y:- ftbltu «tud{um mbgbgtoœt bwsc fhJtltu hnuNu. yt mbgbgotœt 10 jtF mw^elt ftb btxu

yuj.ytu.ytR. ytÃgt <theF&e 10 rœJm <&t 10 jtF &e Wvhltk ftb btxu yuj.ytu.ytR. ytÃg

<theF&e 15 rœJm&e NY &guj dKJtbt ytJNu. <&t <u œhBgtl ftble 5% juFu zevtuÍex Che fhthvºt

xuLzhbtk ftuLx[t¾xh îtht Chujt CtJ <btb «fthlt su <u «J<o<t mhfthe xuût mrn<lt CtJ

dKJtbtk ytJNu. ylu <ubtk atjw ftb œhBgtl su ftuR VuhVth &Nu <ultu J^thtu awfJJtbtk ytJNu lrnk.

c:- mûtb m•tt îtht Yt.1,00,00,000.00 mw^elt xuLzhle bkswheltu XhtJ vtzgt ctœ (LOI)

ytvJtbtk ytJNu ðgth ctœ rœl - 15 btk rm¾gtuhexe zevtuÍex sbt fhtJJtle hnuNu. rm¾gtuhexe

zevtuÍex btuze ChJtlt rfMmtbtk Bgwrl.ftuvtuohuNlbtk «Joðbtl rlgb ylwmth ftgoJtne fhJtbtk

f:- bkswh &guj xuLzhle mbgbgtoœtbtk ftbdehe vqKo l &tg <tu bubtuhuLzb (ltuxem RLJtRxuz xuLzh) btk

sKtJuj «btKu bkswh &guj mbgbgtoœt ctœlt FhuFh ctfe ftble hfblt bn•tb 10% juFu

(jefJezexe zubuSm) vulÕxe Jmwj fhJtbtk ytJNu.

(11) y:- awfJKe:-

xuLzh Chlthu yu Jt< mbS juJtle hnuNu fu <uKu xtkfujt œh vwhtk &gujt ftb btxult Au ylu <ubtk bswhe,

vtjF, ÃjtLx, œuFhuF, mhJem-ftbdehe, Jes¤e, htugÕxe ylu ytufx[tug Jduhu ykNu <btb Faoltu

<&t sYh sKtg <tu ylu ðgthu ht<vt¤elt ftblu juJt c^t J^thtlt Faoltu mbtJuN &Nu ylu xtkfujt

CtJ fu œh fh<t J^thtle ftuR awfJKe ykdult <ublt ftuR œtJt ægtlbtk juJtNu lnek ylu xuLzh

Chlth Ftuxe hswyt<lu fthKu y&Jt ftuR Ôgrf<yu (vAe<u ctk^ftb rJCtdltu fboathe ntug fu l

ntug) <ublu ytvuje btne<elu yt^thu vtA¤&e ftuR œtJt hsw fhJt nfœth hnuNu lnek. <ublw xuLzh

ChJt <&t <ubtk swœt swœt CtJ ylu œh ChJt btxu sYhe yuJe <btb btne<e vtu<tlt vûtu l bu¤Je

NfJtlu fthKu vtu<u xuLzh hsw fhJtlu je^u y&Jt <ubtk&e WCt &<t ftuR stuFb fu sJtcœthebtk&e

Axfe NfNu lnek. mœh ftbbtk ftuR vK ò<lt ctk^ftblt bxehegj Wvh CtJ J^thtu ytvJtbtk

c:- ftuLx[tfxhtulu vubuLx / hlekd cej Bgwrl. frb§h©elt su <u «J<obtl rlgb bwsc fhJtbt ytJNu.

<&t Bgwrl. frb§h©e/mexe Rsluh©e lt su <u JF<ltk mh¾gwjh «btKu ftbdehe/ybj fhJt rcl

Nh<e ckDlf<ot hnuNu.

f:- ftuLx[t¾xhlt œhuf hlekd cejbtk&e ftuLx[t¾xhlu awfJJtle &<e fwj hfb Wvh (xuLzh bwsclwk vubuLx +

yu¾x[t ytRxb) 2 % juFu hexulNl ble ftvJtbtk ytJNu su VtRlj cejbtk vh< ytvJtbtk ytJNu.

z:- htsg / fuL÷ mhfth©elt JF<tuJF<lt ftgœt bwsc su ftuR hfble fvt< fhJtle &Nu <u bwsc

ftuLx[tfxhlt cejbtk&e fvt< fhJtbt ytJNu.

(12) yu:- fhth mkc^e œM<tJustu fhthlt ydðglt Ctd dKtNu ylu <u mD¤t mne<lt fhth mbd{ ftblu jtdw

ce:- xuLzhbtk œNtoJuj ftb mkck^e œM<tJusbtk œNtoJuj rJd<btk rJmkd<<tlt rfMmtbtk leau œNotJuj

¢btlwmth œM<tJusbtk œNtoJuj rJd< d{tng htFJtbkt ytJNu.fhth mkc^e œM<tJustu fhthlt ydðglt

Ctd dKtNu ylu <u mD¤t mne<lt fhth mbd{ ftblu jtdw vzNu.

(yu) yufb ylu fœ:-

(2) xuLzh VtuboLþk CtJvºtf

(3) MvuNeVefuNl

z[tu#dbtk fœ, ytfth, ytkfzt fœta Ftuxt ntug <tu btvujt fœ, ytfthlu yLþmhÔþk

(2) xuLzh Vtubole yLþMþra-ce

(3) MvuNeVefuNl

Cwj Chujt fu Ftuxt JKollt rfMmtbtk yt mkck^e Wvhefûttyu rJmkd<<t ykdule ltuk^ bwfe

yuze.mexe yuLSlegh / zu.BGþrl.frbNlh©ele bkswhe bu¤JJtbtk ytJNu ylu <u bwsc fhJtbkt

ytJuj rlKog ykr<b dKJtbkt ytJNu.

(13) xuLzhhu z[tuRkd fu MvuNeVefuNlbtk hnuje ftuR ûtr< fu Ftbeltu duhjtC juJtle fturNN l fhJe ylu

Rsluh Rlatsuo Ãjtl <&t MvuNeVefuNlle ûtr<ytu mw^thJe <&t <ulwk mtawk y&oDxl fhtJJwk.

(14) yt Wvhtk< y.Bgw. ftuvtuo. lt slhj ftuLx[tfx fLzeNl vK btLg htFJle hnuNu.

(15) yufe JF<u yuf fh<t J^w søgtytuyu ftb NY fhJtltu Jfo ytuzoh b¤u <tu ftb yuf mt&u s c^u NY

(16) atjw ftbu mrJom jtRllu lwfNtl l &tg <u he<u ftb fhJtlw hnuNu. stu ftuR mrJom jtRllu lwfNtl

&Nu <tu <ule mkvwKo sJtcœthe (òlbtj) ftuLx[tfxhle vtu<tle hnuNu. mtRx Wvh ftb œhBgtl bswhtu

fu sl<tlt ftuR btKmlt òlbtj lu lwfNtl &tg <ule sJtcœthe ftuLx[tfxhle hnuNu. vtujem Vrhgtœ

&tg <tu <ule sJtc>the vK ftuLxtfxhle hnuNu. CuFz Dme l vzu <ule sJtc>the vK vtujem

Vrhgtœbt ftuLx[tfxhle hnuNu. CuFz Dme l vzu <u btxu mjtb<elt vdjt (suJt fu œtuhzwk ctk^e bswh

Ftztbtk W<thJt, mtuhekd ylu Mx[xekd fhJt rJduhu) je^t Jdh bsqhlu Ftztbtk W<thNu <tu ftuLx[tfxh s

vtujem Vrhgtœbt sJtcœth hnuNu ylu Bgwrl.ftuvtuohuNlltu ftuRvK MxtV ytlt btxu sJtcœth hnuNu

lrn. ytxjwk mbSlu s xuLzh ChJwk. œhuf ftb fh<t bswhtultu rJbtu vK W<thujtu ntuJtu stuRyu.

(17) bxehegÕm fu ceò xuMxed hevtuxo ftuLx[tfxhu vtu<tlt Fauo ftuvtuohuNl sKtJu <u søgtyu fhtJJtlt hnuNu.

bxehegÕm jtJJt fu jR sJtltu mkvwKo Fao ftuLx[tfxhu CtudJJtltu hnuNu.<&t atjw ftb œhBgtl

yuLSlegh Rlatso îtht ybœtJtœ Bgwrlmevj ftuvtuohuNlle buxjzuvtu jucbtk xuMxekd fhtJJt

sKtJJtbtk ytJu <tu ftuLx[t¾xh îtht <ulw vtjl fhJtlw hnuNu.

(18) M&¤ vrhrM&r< / sYhegt< bwsc ftb fhtJ<t xuLzhlt ytRxblt sÚ&tbtk J^ ^x &tg <tu rlgb

ylwmth <u ykdu ftb fhJt ftuLx[tfxh ck^tgujt Au.

(19) mtRx vh jtJJtbtk ytJuj btj mtbtl hesufx fhJtbt ytJu <tu <whk< rœl 1btk vh< jR sJtltu

hnuNu. yLg&t <ule lwfNtlle sJtc>the ftuLx[tfxhle hnuNu.

(20) ftuLx[tfxhlu su ftuLx[tfx ytvJtbtk ytJu Au. <ubt mhfth©elt «Joðbtl rlgb bwsc ve.yuV/juch

yufx <&t bswhtu <&t MxtVle Jebt vtujeme jElu <ult ftgœtlw vtjl fhJtlwk hnuNu <&t yt ykdu

Bgwrl.ftuvtuohuNl îtht su btne<e btkdJtbtk ytJu <u ytvJtle hnuNu. bu.BGþrl.frbNlh©elt mh¾âwjh

Bþsc sYhe ctknu^he vºtf ytvJtLþk hnuNu.

(21) ftuRvK ftgœtfeg jexeduNl ybœJtœ Nnuhle ftuxobt hnuNu.

(22) btj su <u Mxtumo Wvh y&Jt mtRx Wvh jtuftulu lz<h l &tg <u he<u mwalt bwsc W<thJtltu <ubs

dtuXJJtltu hnuNu.

(23) ftuR vK mhfthe fhJuht ChJtle <btb sJtcœthe ftuLx[tfxhle hnuNu.

(24) ftuLx[tfxh îtht xuLzhbt œNtoJuj MveNeVefuNl bwsc MxtLzzo bxehegÕm MvuNeVefuNl bwsc jtJJtlt

hnuNu.<&t xuMxekd fhtJJtlwk hnuNu.<&t y ykdu «Joðbtl Bgwrl.ftuvtuohuNlt rlgbtulw vtjl fhJtlw

(25) yt xuLzhbtk stu ftuR ytRxb hne dR ntug <tu <u y&Jt M&¤ M&e<e bwsc xuLzhbtk mbtJuN l ntug

<uJe J^thtle ftbdehe fhJtle &tg <uJt rfMmbtk Bgwrl.ftuvtuohuNlt «Joðbtl rlgb ylwmth J^thtle

ytRxblt CtJ lffe fhJtbtk ytJNu ylu <u bwsc awkfJKe fhJtbtk ytJNu.

(26) atjw ftb œhBgtl «tuxufNlle mkvwKo sJtcœthe ftuLx[tfxhle hnuNu. subtk vevzt, œtuhzt Cgmwaf

ctuzo, ÃjtMxef vèe, rJ. ftuLx[tfxhu jtJJtlwk ylu mtaJJtlwk hnuNu. ylu ftuRvK yfMbt< &Nu <tu <ule

mkvwKo sJtc>the ftuLx[tfxhle hnuNu.

(27) M&¤ Wvh atjw ftbdehe œhBgtl ftb fhlth ftuLx[tfxhlt bswh / fboathe y&Jt yLg Ôgrf<lt

yfMbt<lt rfMmbtk juch yufx bwsc fhJtle &<e ftgoJtne <&t vtujem ftgoJtnele sJtc>the

ftuLx[tfxhle hnuNu.

(28) stu MxtV mqalt ytvu <u bwsc mwalt vtu&e ftuLx[tfxhu htFJtle hnuNu. <ubtk œhhtus fhuj ftbdehe <&t

yr^ftheytuyu ftb mw^thJt fu «tud{um J^thJtlt ltuk^ fhuj ntug <tu <ulwk ftuBÃjtgLm ytvJtlwk hnuNu

ytJe ltu^lt sJtc l &gu fu <u «btKu M&¤ Wvh ybj l &gu ftuLx[tfxhlu vulÕxe fhJtle m•tt

yuze.mexe yuLSlehgh©elu hnuNu.

(29) œhuf ytRxblt MvuNeVefuNl ybœtJtœ Bgwrlrmvj ftuvtuohuNlltk bkswh &guj <&t btLg htFuj

MvuNeVefuNl Nh<tu bwsc hnuNu su ytRxbbtk MvuNeVefuNl l ntug <uJt mkstudtubtk

yuze.mexe.yuLSlegh©eltu rlKog ytFhe hnuNu.Jtuxhekd fhJtbtk lrn ytJu fu œhhtus J^thtltu

zucheÍ WvtzJtbtk lrn ytJu <tu ftuLx[tfxhlt Fauo ylu sutFbu Jdh ltuxemu Jtuxhekd fhtJJtbtk <&t

zucheÍ WvtzJtbtk ytJNu ylu cejbtk&e hfb ftve juJtbtk ytJNu.

(30) juch JuÕVuh Vkz btxu ntjbtk htsg mhfth©eyu fhuj nwfb bwscle hfb cejbtk&e ftve juJtbtk

(31) atubtmtltu vehegz <t.15 swl &e 14 ytufxtuch Mþ^eltu dKJtbtk ytJNu. yt mbg œhBgtl

ftuLx[tfxh îtht ftbdehe fhe Nftg <ub l ntug <tu <u Bþscle xtEb jebex J^the ytvJtbtk ytJNu.

(32) muÕm xuût / Jux lkch / ve.yuV. ftuz lkch / vtl lkch / S.yum.xe. lkch rJduhu ftuLx[t¾xhu VhSgt<

(33) ltbœth ftuxo îtht fhuj nwfb <ubs rlœuo»ttulwk awM<vKu vtjl fhJtlwk hnuNu. subtk z[ulus lu jd<tk ftb

btk ftuRvK mkkstudtubtk bNel ntuj / dxh btk btKmlu W<thJtu lnek <ubs buLgwyj M¾{uJSkd ykdule

btdoœrNoft lwk vtjl fhJwk.

(34) mœh xuLzhle ytRxbtult CtJtu ltKt Ft<t lt mhfgwjh lk.38, <t.21/11/22 <&t mûtb m•ttle

b¤uj bkswhe bwsc GST rmJtg dKºtebtk juJtbt ytJuj <&t «Jo<btl rlgb bwsc GST awfJJt

vtºt &Nu su ægtlu jR <btb cezomu xuLzhtu ChJtlt hnuNu.

(35) mœh xuLzh yk<od<lt ftb mkjøl y.Bgw.ftu.btk vJo<btl <btb rlgbtu/mhfgwjhtu jtdw vzNu <ubs

JF<tu JF< &lth mw^thtytu vK jtdw vzNu. sule ltuk^ jR xuLzhtu ChJtlt hnuNu.

yufhthlwk Vtubo

(1) nwk/ybu yt&e yufhth fhwk Awk/fheyu Aeyu fu yt xuLzh hsw fh<tk vnujtk buk/ybu M&¤le bwjtft<

je^e Au ylu ftblu jd<t btjmtbtl, bswhe ylu ceS ctc<tulu jd<e M&trlf

vrhrM&r<le ò<-btne<e bu¤Je Au.

(2) nwk/ybu yt&e yufhth fhwk Awk/fheyu Aeyu fu yt ftuLx[tfxhtule Nh<tu rJd<tu ylu xuLzhlu jd<t

>M<tJustu ft¤SvwJof yÇgtm fgtuo Au ylu <u bwsc <ultu ybj fhJt mkb< Awk/Aeyu.

ftuLx[tfxhle mne ylu rmfft

GENERAL DETAILS SPECIFICATION OF MATERIAL

1.1 Water shall not be salty or brackish and shall be clean reasonably clear and free from

objectionable quantities of silt and tract of oil and injurious alkalis, salts, organic mater and

other deleterious materials which will either weaken the mortar or concrete or cause

efflorescence of attach 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.

1.2 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 of 30 minutes either more or decrease of more than 10 percent 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.

1.3 Water for curing mortar, concrete or masonry should not be too acidic and also not too

alkaline. It shall be free of elements which significantly affect the hydration reaction or

otherwise interfere with the hardening of mortar or concrete during curing or those which

produce objectionable stains or other unsightly deposits on concrete or mortar surfaces.

1.4 Hard and bitter water shall not be used for curing.

1.5 Potable water will be generally found suitable for curing mortar for preparing or concrete.

2.1 Cement shall be Ordinary Portland, Ordinary Portland cement as per I.S. 269-1976 or

Portland slag cement as per I.S.455-1976.or Sulphate Resistant Cement as per IS-12330 latest

2.2 Testing of Cement : It should be specifically noted that the cement brought by the

contractor at site of work shall be used after the same is tested at the approved laboratory

as per the direction of the Engineer-in-charge. Such approved laboratory may be located at

Ahmedabad. All the charges for transport and testing of the samples shall have to be borne by

the contractor. The frequency of testing of such materials shall be in accordance to the

relevant Indian standard as directed by the Engineer-in-charge.

Sand shall be natural sand, clean, well graded, hard strong, durable and gritty particles free from

injurious of dust, clay, kankar nodules, soft or flaky particles shale, alkali salts, organic matter,

loam, mica or other deleterious substances and shall be got 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 it clean.

3.2 COARSE SAND :

The fineness modulus of coarse sand shall not be less than 2.5 and shall not exceed 3.0. The sieve

analysis of coarse shall be as under:

I. S. Sieve Percentage by weight I. S. Sieve Designation Percentage by weight

Designation sieve passing passing through sieve.

3.3 FINE SAND :

The fineness modulus shall not exceed 1.0. The sieve analysis of fine sand shall be as under :

I. S. Sieve Percentage by weight I. S. Sieve Designation Percentage by weight

Designation sieve passing passing through sieve.

2.36 mm 100 300 Micron 5 -

M-4 STONE GRIT :

4.1 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 proper adhesion of mortar.

Grit shall for 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

quarried is mentioned. Grit 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.

4.2 The grit shall conform to the following gradation as per sieve analysis :

I. S. Sieve Percentage passing I. S. Sieve Designation Percentage by weight

Designation sieve through sieve passing through sieve.

4.3 The crushing strength of grit will be such as to allow the concrete in which it is used to build

up the specified strength of concrete.

4.4 The necessary tests for grit shall be carried out as per the requirements of I. S. 2386 (Parts I

to VIII) 1963, as per instruction of the Engineer-in-charge. The necessity of test will be decided

by the Engineer-in-charge.

M-5A STONE COARSE AGGREGATE FOR NOMINAL MIX CONCRETE :

5A.1 Coarse aggregate shall be of machine crushed stone of black trap or equivalent and be

hard, strong, dense, durable, clean and free from skin and coating likely to prevent proper

adhesion of mortar.

5A.2 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 reinforcement

cement concrete the maximum limit may be restricted to 6 mm less than the minimum

lateral clear distance between bars of 6 mm. less than the cover whichever is smaller.

I. S. Sieve I. S. Sieve Designation of I. S. Sieve Percentage

Designation of nominal size Designation passing for single

nominal size of nominal sized aggregates

NOTE :- The percentage may be varied by the Engineer-in-charge when considered necessary for

obtaining better density and strength of concrete

5A.3 The grading test shall be taken in the beginning and at the charge of source of materials.

The necessary tests indicated in I.S. 383-1970 I. S. 456-1978 shall have to be carried out to

ensure the acceptability. The aggregates shall be stored separately and handled in such a

manner as to prevent the inter mixed on different aggregates. If the aggregates are covered

with dust, they shall be washed with water to make them clean.

M-5B BLACK TRAP OR EQUIVALENT HARD STONE COARSE :

5B.1 Aggregate for Design Mix concrete : Coarse aggregate shall be of machine crushed stone of

black trap or equivalent hard stone and be hard, strong, dense, durable clean and free from

skin and coating likely to prevent proper adhesion of mortar.

5B.2 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 trap or

equivalent hard stones as approved. Aggregate shall have no deleterious reaction with

5B.3 The necessary tests indicated in I. S. 383-1970 and I.S.456-1978 shall have to be carried out

to ensure the acceptability of the material.

5B.4 If aggregate is covered with dust it shall be washed with water to make it clean.

6.1 The bricks shall be hard or machine moulded and made from suitable soils and kiln burnt.

They shall be free from cracks and flaws and nodules of free lime. The shall have smooth

rectangular faces with sharp corners and shall be of uniform colour.

The bricks shall be moulded 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 ground from a height of 600 mm.

6.2 The size of modular bricks shall be 190 mm x 90 mm.

6.3 The size of the conventional bricks shall be as under :

6.4 Only bricks of one standard size shall be used on one work.The following tolerance shall be

permitted in the conventional size adopted in a particular work.

Length : = 1/8" (3.0 mm) Width : = 1/16" (1.50 mm)

Height : = 1/16" (1.50 mm)

6.5 The crushing strength of the bricks shall not be less than 35 Kg/Sq.cm. The average water

absorption shall not be more than 20 percent by weight. Necessary tests for crushing strength

and water absorption etc. shall be carried out as per I.S. 3495 (Part-I to IV) -

M-6A FLY-ASH LIME BRICKS :

The fly ash lime bricks shall conform to Grade-1 or Grade-2 of IS-3812-1981. The frog of the 80 to

100 mm x 40 mm x 10 to 20 mm size.

The size of modular bricks shall be 190 mm x 90 mm x 90 mm.

The size of conventional brick shall be 225 mm x 110 mm x 75 mm.

Only bricks of one standard size shall used on one work. The following tolerances shall permitted

in the conventional size adopted in a particular work:

Length : + 3 mm

Height : + 2 mm

The physical characteristic of bricks shall be as follows.

The minimum compressive strength of fly ash lime bricks shall not be less than 75 Kg/Sq.Cm. and

the test shall be conform to IS-3495 (Part-I):1992.

The average drying shrinkage of the brick when tested by the method described in IS 4139-1989

being shall not exceed 0.15 percent.

The averages water absorption not more than 20 percentage by mass and the test shall conform

to IS-3495 (Part-3):1992.

M-7 MILD STEEL BARS :

7.1 Mild steel bars reinforcement for R.C.C. work shall conform to I.S. 432 ( Part-II ) 1966 and

shall be tested quality. It shall comply with relevant part of I.S.456-1978.

7.2 All the reinforcement shall be clean and free from dirt, paint, grease, mill scale or loose of

thick rust at the time of placing.

7.3 For the purpose of payment the bar shall be measured correct upto 10 mm length and

weight payable worked out the rate specified below :

1. 6 mm 0.22 Kg./Rmt. 8. 20 mm 2.47 Kg./Rmt.

2. 8 mm 0.39 Kg./Rmt. 9. 22 mm 2.98 Kg./Rmt.

3. 10 mm 0.62 Kg./Rmt. 10. 25 mm 3.35 Kg./Rmt.

4. 12 mm 0.89 Kg./Rmt. 11. 28 mm 4.83 Kg./Rmt.

5. 14 mm 1.21 Kg./Rmt. 12. 32 mm 6.31 Kg./Rmt.

6. 16 mm 1.58 Kg./Rmt. 13. 36 mm 7.31 Kg./Rmt.

7. 18 mm 2.00 Kg./Rmt. 14. 40 mm 9.86 Kg./Rmt.

M-8 TMT FE-500 STEEL BARS FOR REINFORCEMENT :

8.1 Reinforcement bars shall conform to IS-432, IS-226 or IS-1786 with its latest amendment

and welded wire fabrics to IS : 1566. Only TMT bars for reinforcement in RCC duct shall be

used which shall be clean, free from pitting, oil, grease, paint, loose mill scale, rust, dirty dust

or any other such substance that will destroy or reduce bond.

It permitted by the Engineer-in-charge reinforcement shall be done in accordance with IS-2751

or IS-9147 as applicable.

8.2 Other provision and requirements shall conform to specification No. M-7 for mild steel

M-9 MILD STEEL BINDING WIRE :

9.1 The mild steel wire shall be of 1.63 mm or 1.22 mm (16 or 18 gauge) diameter and shall

conform to I.S. 280-1972.

9.2 The use of black wire will be permitted for binding reinforcement bars. It shall be free from

rust, oil paint grease, loose mill scale or any other undesirable coating which may prevent

adhesion of cement mortar.

M-10 STRUCTURE STEEL :

10.1 All structural steel 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 be free from

loose mill scale, rust pits or other defects affecting the strength and durability. Rivet bars shall

conform to I.S. 1148-1973.

10.2 When the steel is supplied by the contractor test certificate of the manufacturers shall be

obtained according to I.S. 226-1975 and other relevant Indian Standards.

M-11 SHUTTERING :

11.1 The shuttering shall be either of wooden planking of 30 mm. minimum thickness with or

without steel lining or of steel plates stiffened by steel angles. The shuttering 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 bullie props, brick pillar of adequate section

built in mud mortar may be used.

11.2 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 caused by vibration of

live load of men working over it and other incidental loads associated with it. The shuttering

shall have smooth and even surface and its joints shall not permit leakage of cement grout.

11.3 If at any stage of work during or after placing concrete in the structure, the form sags or

bulges out beyond the required shape of the structure, the concrete shall be removed and

work redone with fresh concrete and adequately rigid form work. The complete form work

shall be got inspected by and got approved from the Engineer-in-charge, before the

reinforcement bars are placed in position.

11.4 The props shall consist of bullies having 100 mm minimum diameter measured at mid

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 of 0.10 Sq.m. laid on

sufficiently hard base.

11.5 Double wedges shall further be provided between the sole plate and the wooden props so

as to facilitate tightening and easing of shuttering without jerking the concrete.

11.6 The timber used in shuttering shall not be so dry as to absorb water from concrete and

swell or bulge nor so wet to shrink after erection. The timber shall be properly sawn and

planned on the sides and the surface coming in contract with concrete. Wooden form work

with metal sheet lining or steel plates stiffened by steel angles shall be permitted.

11.7 As far as practicable, clamps shall be used to hold the forms together and use of nails and

spikes avoided.

11.8 The surface of timber shuttering that would come in contact with concrete shall be well

wetted and coated with soap solution before the concreting is done. Alternatively coat of raw

linseed oil or oil of approved manufacture 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 burnt oil shall be permitted.

11.9 The shuttering for beams and slabs shall have camber of 4 mm per meter (1 in 250) or as

directed by the Engineer-in-charge so as to offset of subsequent deflection for cantilevers the

camber at free end shall be 1/50 of the projected length or as directed by the Engineer-in-

M-12 HARD DRAWN WIRE :

The Hard drawn steel wire should confirming to IS-432 (Part 2), Hard drawn steel wire shall be

manufacture and its chemical composition should be as per para 3.0. The finished wire should

be free from defects and finished in a workman like manner. Nominal sizes, Tolerances,

Physical requirements are as per IS : 432 (Part-II) latest edition. Hard drawn steel wire should

be tested as specified in IS : 432 (Part-II) latest edition.

Note : All the B.I.S. mentioned above shall be with its latest addition as well as amendment.

ITEM TECHNICAL SPECIFICATIONS:

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gtuslt (70.20.10) csux vife swœe swœe mtumtgxeytu <ubs atjeytu ylu vtu¤btk lJe meMxubuxef z[ulus jtRl

ltkFJtltk <&t bNelntuj lJt cltJJt / hevuh fhJt ylu auBch cltJJtltk ftb ctc<. (yu.yth.me. xuLzh)

Item No : 01 Excavation for pipe line trenches for water supply, sewerage line, manhole etc. all with

shoring and struting if required as per required gradient and line including safety

provisions using site rails and stacking excavated stuff including up to all required lead

cleaning the site etc. complete for all lifts and strata as specified. In all sorts of soil and

0 to 1.5 meter depth.

1.5 to 3 meter depth.

3 to 4.50 meter depth.

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.

Clearing the site :

The site on which the structure is to be built shall be cleared and all obstructions, loose

stone, materials and rubbish of all kind, bush, wood and trees shall be removed as directed. The

materials so obtained shall be property of 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.

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 work. Contractor shall supply laborers, materials, etc. required for setting out the

reference marks and bench marks and shall maintain them as long as required and directed.

The excavation in foundation shall be carried out in true line and level and shall have the

width and depth as shown in the drawings or as directed. The contractor shall do the necessary

shoring and shutting or providing 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.

Disposal of the excavated stud :

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 all lift.

Mode of measurement and payment :

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 for surplus excavation made in excess of above requirements

or due to slopping and sloping back as found necessary on account of conditions of soil , and

requirements of safety.

The rate shall be for a unit of one cubic meter.

Item No. 02 : Extra rate over item of excavation of earth if excavation is to be done in wet condition

without resorting to pumping but incl. of bailing out of water.

Extra rate over item of excavation of earth if excavation is to be done in wet condition without

resorting to pumping but incl. of bailing out of water.

Measurement shall be on per Cmt.

Item No : 03 Extra rate over item of excavation of earth for excavation of asphalt pavement / RCC of

thickness up to 0.20 meter including demolishing the asphalt carpet, metal, soiling/cutting

Reinforcement etc.comp. with stacking the material as directed.

up to 0.20 meter thickness (By Manual)

Up to 0.30 meter (By any type of Breaker Machine or R.C.C.Cutter machine including cost of

operator, fuel, & transportation etc complete.

0.30 meter & above (By any type of Breaker Machine or R.C.C.Cutter machine including cost of

operator, fuel, & transportation etc complete.

Under this item contractor shall demolish existing asphalt or WBM pavement met with

during laying of RCC pipe.

Only area of pavement intercepted in pipe laying shall be demolished. If excess area is

demolished same shall be reinstated by the contractor.

Demolished material like asphalt pavement lump and metal shall be stacked separately

as directed by the Engineer, so that it can be reused in doing the pavement on

completion of laying the pipe.

Work done to the extent of requirement for laying of pipeline and as per specifications

shall be measured in sq.m. and paid at the tender rate.

Item No : 04 Refilling in pipe line trenches ramming and watering, Consolidating, disposal of surplus

stuff as directed within 3 KM Area

As per GWSSB SOR 2022-23; Item No.14.1.

All fill material will be subject to Engineer’s approval. If any material is rejected by Engineer,

contractor shall remove the same forthwith from the site at no extra cost to the owner. Surplus

fill material shall be deposited / disposed off as directed by Engineer after the fill work is

completed upto a distance of 5 Km for which separate payment will be paid under the

corresponding item.

No earth fill shall commence until surface water discharges and streams have been properly

intercepted or otherwise dealt with as directed by Engineer.

To the extent available, selected surplus soils from excavated materials shall be used as backfill.

Fill material shall be free from clods, salts, sulphates, organic or other foreign material. All clods

of earth shall be broken or removed. Where excavated material is mostly rock, the bounders

shall be broken into pieces not larger than 150 mm size, mixed with properly graded fine material

consisting of murrum or earth fill up the voids and the mixture used for filling.

If any selected fill material is required to be borrowed, Contractor shall make arrangements for

bringing such material from outside borrow pits. The material and source shall be subject to

prior approval of Engineer. The approved borrow pit area shall be cleared of all bushed, roots of

trees, plants, rubbish etc, top soil containing salts / sulphate and other foreign material shall be

removed. The materials so removed shall be burnt or disposed off as directed by Engineer.

Contractor shall make necessary access to borrow areas and maintain the same, if such access

road does not exist, at his cost.

FILLING IN PITS AND TRENCHES AROUND FOUNDATIONS OF STRUCTURES, WALLS ETC.

As soon as the work in foundations has been accepted and measured, the spaces around the

foundations, structures, pits, trenches etc. shall be cleaned of all debris, and filled with earth in

layers not exceeding 20 cm, each layer being watered, rammed and properly consolidated,

before the succeeding one is laid. Each layer shall be consolidated to the satisfaction of Engineer.

Earth shall be rammed with approved mechanical compaction machines if instructed. Usually no

manual compaction shall be allowed unless Engineer is satisfied that in some cases manual

compaction by tampers cannot be avoided. The final backfill surface shall be trimmed and

leveled to proper profile as directed by Engineer or indicated on the drawing.

FILLING IN TRENCHES

Filling in trenches for pipes and drains shall be commenced as soon as the joints of pipes and

drains have been tested and passed. The backfilling material shall be properly consolidated by

watering and ramming, taking due care that no damage is caused to the pipes.

Where the trenches are excavated in soil, the filling from the bottom of the trench to the level of

the centreline of the pipe shall be done by hand compaction with selected approved earth in

layers not exceeding 8 cm; backfilling above the level of the centreline of the pipe shall also be

done with selected earth by hand compaction or other approved means in layers not exceeding

In case of excavation of trenches in rock, the filling upto a level 30 cm above the top of the pipe

shall be done with fine materials, such as earth, moorum etc. The filling up of the level of the

centreline of the pipe shall be done by hand compaction in layers not exceeding 20 cm. Also the

filling above the centreline of the pipe shall be done by hand compaction or approved means in

layers not exceeding 20 cm. The filling from a level 30 cm. Above the top of the trench shall be

done by hand or other approved mechanical methods with broken rock filling of size not

exceeding 20 cm mixed with fine material as available to fill up the voids.

Filling of the trenches shall be carried simultaneously on both sides of the pipe to avoid unequal

pressure on the pipe.

GENERAL SITE GRADING

Site grading shall be carried out as indicated in the drawings and as directed by Engineer.

Excavation shall be carried out as specified in the specification. Filling and compaction shall be

carried out as specified elsewhere unless otherwise indicated below.

If no compaction is called for, the fill may be deposited to the full height in one operation and

levelled. If the fill has to be compacted, it shall be placed in layers not exceeding 200 mm and

leveled uniformly and compacted as indicated in before the next layer is deposited.

To ensure that the fill has been compacted as specified, field and laboratory tests shall be carried

out by Contractor at his cost.

Field compaction test shall be carried out at different stages of filling and also after the entire

height has been completed. This shall hold good for embankments as well.

Contractor shall protect the earth fill from being washed away by rain or damaged in any other

way. Should any slip occur, Contractor shall remove the affected material and make good the slip

The fill shall be carried out to such dimensions and levels as indicated on the drawings after the

stipulated compaction. The fill will be considered as incomplete if the desired compaction has not

If specifically permitted by Engineer, compaction can be obtained by allowing loaded trucks

conveying fill or other material to ply over the fill area. Even if such a method is permitted, it will

be for contractor of demonstrate that the desired / specified compaction has been obtained. In

order that the fill may be reasonably uniform throughout, the material should be dumped in

place in approximately uniform layers. Traffic over the fill shall then be so routed to compact the

area uniformly throughout.

If so specified, the rock as obtained from excavation may be used for filling and leveling to

indicate grades without further breaking. In such an event, filling layers not exceeding 50 cms

approximately. After rock filling the void in the rocks shall be filled with finer materials such as

earth, broken stone etc. and the area flooded so that the finer materials fill up the voids. Care

shall be taken to ensure that the finer fill material does not get washed out. Over the layer so

filled, a 100 mm thick mixed layer of broken materials and earth shall be laid and consolidation

carried out by a 12 tonne roller. No less than twelve passes of the roller shall be accepted before

subsequent similar operations are taken up.

The compaction, only where so called for, in the schedule of quantities / items shall comply with

the specified (Standard Proctor / modified Proctor) density at moisture content differing not

more than 4 percent from the optimum moisture content. Contractor shall demonstrate

adequately at his cost, by field and laboratory tests that the specified density has been obtained.

Lead for deposition / disposal of excavated material, shall be as specified in the respective item

of work. For the purpose of measurement of lead, the area to be excavated or filled or area on

which excavated material is to be deposited / disposed off shall be divided into suitable blocks

and for each of the blocks, the distance between centerlines shall be taken as the lead which shall

be measured by the shortest straight line route taken by Contractor. No extra compensation is

admissible on the grounds that the lead including that for borrowed material had to be

transported over marshy or ‘katcha’ land / route.

Measurement and Payment

Backfilling as per specifications on the sides of foundations of columns, footings, structures, walls,

tanks, rafts, trenches etc. with excavated material shall be done. As a rule, material to be

backfilled shall stacked temporarily within the basic lead of 90 meters unless otherwise directed

by the Engineer. If Engineer directs / permits a lead of over 90 meters for such material, the

conveyance of the material for the extra distance over the basic lead of 90 meters for backfilling

will be paid for.

Actual quantities of consolidated back filing shall be measured and paid in cubic meters.

Penalty for improper watering and compaction will be Rs. 350/Tanker required and rent for roller

@ Rs. 20 per sq.m.

In case the watering and compaction of the backfilled material is not as per the specifications,

AMC will carry out the same through own resources. A rate of Rs. 350 per water tanker and Rs.

20 per sq.m. for rolling and compacting will be recovered from the contractor.

The M/s shall be on CMT basis.

Item No : 05 Conveyance of lime murrum building rubbish earth manure or sludge & execavated

rockand rubbish [Lime murrum building rubbish]. Up to 5.0 Km. lead (Building SOR 2023-

24 Statement No.5 Item No. 030201A1 ; Page no.6)

Disposal of earth, lime, murrum, building rubbish, manure, garbage, sludge, excavated rock, fly

ash, aggregates of any kind is subject to the following :

Unsuitable materials obtained from clearing site and excavation shall be disposed off within a

lead of 50 meters as directed. useful materials obtained from clearing site and excavation shall be

stacked within a lead of 50 mt. beyond the work area as directed. Materials suitable for back

filling shall be stacked at convenient places within a lead of 50 mt. from the structure for reuse.

Useful stones from rock excavation shall be stacked neatly within a lead of 50 M. and will be

allowed to be used by the contractor on payment at rates laid down in the contract or if not so

aid down, at schedule of rates of the Division or at a mutually agreed rates if there are no such

rates in the Schedule of rates.

If surplus materials are required to be conveyed beyond 50 M. conveyance will be paid for under

a separate item.

The M/s shall be on CMT basis.

Item No : 06 & 07 Providing and supplying ISI marked only Standard length Stoneware pipes in

standard lengths of following class and diameter including all taxes, insurance, transportation,

freight charges, octroi, inspection charges, loading, unloading, conveyance to departmental

stores, stacking etc. (IS - 651 / 1989) (Based on GWSSB SOR 2022-23, Item No. 11.0 P-17)

100mm, 150mm,230mm AA Class

The pipes shall be of best quality stone ware pipes. The pipes shall be of approved quality and

make and shall be brought on site after approval. (The pipes shall be laid in grade as per

instruction) contractor shall have introduce bills for standard pipes.The joints shall be done in

cement prop. (1 : 1) (1 part cement : 1 part sand) using spun yarn dispend in hot asphalt and

caulking tools. The hydraulic pressured test shall be given be the contractor for testing pipes and

jointing. No. trenches shall be filed without the approval of the Engineer in charge. The rate of

the pipes work are inclusive of excavation and refilling. The excavation etc. shall be done as

The sewet trench shall be excavated to the alignment and gradient shown on the plan and

section. In all storts soil including oil masonary asphalt roads and wet. excavation . The sewer

excavation shall be commenced at the down stream end of the sewer and be continued upto

thegradient as directed. The trench shall not open more than 60 meters in advace of the

completed sewer only when directed by the Engineer in charge looking to the progress of the

work in obtaining the formation of the bottom of the trenches the usual methods of suing sight

rails and bonning roads shall be adopted during the whole of the process. The center line of

uniform height shall be carried clearly on each rail. The depth of the excavation and invert of the

sewer shall be checked by means of bonning road of appropriate length and also straight edge.

The bed of the trench be shall well remmed before starting laying of sewer lines and cement

concrete and masonary work. Where trenches are deep in bad grounds the sides shall be

supported by suitable timbering of shorting work looking to the nature of soil near big or

important structures, the sides of the trenches shall be closely and securely timbered. If any

settlement of the building is anticipated the timbering shall be left in the ground. The various

materials excavated shall be separately stacked so that in refilling the may be relaid on the same

order as before and least possible damage shall be done carpet on the public roads and private

properties. Surface covering consisting of asphalt carpet shall be kept on one side and preserved

for reinstatement. The excavated earth shall not heaped near the renchers so as to caused

unnecessary obstruction along the pulling inspection, trenches etc. shall be tunneled under only

as necessary. The side of the trenches shall be nearly vertical and plumb & red light shall be

placed at each end at intervals as instructed and further protested by rope fence. Necessary

caution boards shall also be erected and diaced as directed by the Engineer in charge. Wherever

possible material excavated from the trenches of whatever kind shall not placed nearer than

meters from the outer edge of the excavated trench. The utmost shall have to be taken in refilling

the trenches so that no damage may be done no sewer no lump shall be allowed to be put

around the sewer. The remming of the filling shall be done and well watered. The surplus earth

shall be removed directed within 30 meters lead. The measurement of the work shall be exact

length and width of the trench as specified or as per City Engineer instruction and depth shall be

measured vertical as per section upto invert or the pipe lind The City Engineer reserves the right

of extra excavation on either side if considers necessary for the safely of the work. The bottom

and sides of the trench shall be dressed in level and plumb in all directions before any concrete in

India. In case the excavation is done deeper than required no filling shall be allowed to bring the

formation to proper level but contractor shall have to lay cement or lime be concrete of filling or

other acceptable materials as directed by C.E. at contractor won cost so as to come to proper

information, in case bas formation are met with the work shall have be done as per instruction of

C.E. necessary arrangements for watering trenches must be provided be contractor and without

proper watering trenches will not be allowed to be tilled to further. Contractor shall have to

make arrangement for acees to invert of the sewer and for inspection of the ware as ordered by

the Engineer. If is required to shired or after the alignment section of diameter of the pip the

contractor shall carry or altered the alignment section or diameter of the pipe the contractor

shall carry out the altered work at the rates quoted by him for the original work for items and

contractor shall not claim any expenses due to the changes made. In case no work shall be done

at night or on Sundays & other holidays and during the recess time except in and other holiday

the case of bad grounds such as running sand where the work must be executed various day

night without intruption when so ordered by the Engineer. All existing water pipe storm drains

sewer line railway tract, electric cables etc. which do not in the opinion of Engineer required to

be charged in location shall be supported and protected from injury by the contractor. The

contractor shall be liable to pay all damages to water pipe, drains electric and telephone cables

and to private property during the execution of this contract and the same will be recovered from

the running bills or the deposit of work whenever it becomes necessary in the opinion of the

Engineer in charge location of any existing sewers drains etc. not otherwise from in these

specification the contractor shall do the work of making such change and the work shall be paid

for as extra work. All places of public utility etc. shall be kept accessible for use. No extra

payment shall be made for land sides and side slopes done without prior approval of the Engineer

in charge. Wherever natural soil commends winder excavation the mentioned above the same

shall be given after approved C.E. The rate for excavation for easy jointing and caulking nothing

extra shall be paid for this.

Refilling of trenches shall be done only after the grade of line and hydraulic test practicable of the

lines are checked and approved of and order given by the Engineer in charge. The refilling shall be

accompanied by through watering the layers of 0.50 metrs. Further refilling shall be done there

after and process should be repeated till trenches are completely refilled. Temping and ramming

with rammers shall have to be done at all place of important work where ordered by Engineer in

After the trench is give the trenches shall have to be refilled within 4 days with complete

watering. If the contractor fails to do watering satisfactory corporation shall get it done at the risk

and cost of the contractor with or without giving any notice and the expenses incurred in doing

so recovered from the contactor either in cost or from his payment through bills.

The rate shall be for a unit of one Rmt basis.

Item No : 08 R. C. C. PIPE (Horizontal Cast) Providing and supplying ISI Standard R.C.C. pipes(of

Sulphate Resisting Cement) in standard lengths of following class and diameter suitable for

either collar joints or rubber ring joints instuction given as per Engineer incharge including all

taxes, insurance, transportation, freight charges, octroi, inspection charges, loading, unloading,

conveyance to departmental stores, stacking etc Note : One collar should be supplied with each

full length plain ended RCC pipe, cost included in rates below. One rubber ring should be

supplied with each full length socketed pipe, cost included in rates below.(Class NP3 Test

Pressure 0.7 Kg/sq.cm). Rate also Include RCC Collars for RCC pipes including all taxes, carting,

loading,unloading, etc complete. (GWSSB SOR 2022-23 Item No. 10, Page No. 13) R. C. C. PIPE

(Horizontal Cast) Providing and supplying ISI Standard R.C.C. pipes(of Sulphate Resisting

Cement) in standard lengths of following class and diameter suitable for either collar joints or

rubber ring joints instuction given as per Engineer incharge including all taxes, insurance,

transportation, freight charges, octroi, inspection charges, loading, unloading, conveyance to

departmental stores, stacking etc Note : One collar should be supplied with each full length

plain ended RCC pipe, cost included in rates below. One rubber ring should be supplied with

each full length socketed pipe, cost included in rates below.(Class NP3 Test Pressure

Kg/sq.cm). Rate also Include RCC Collars for RCC pipes including all taxes, carting,

loading,unloading, etc complete.

(GWSSB SOR 2022-23 Item No. 10, Page No. 13)

Class NP3 Test Pressure 0.7 Kg/sq.cm

300 mm internal diameter (GWSSB SOR 2022-23 Item No. 10.1.D, Page No. 15)

450 mm internal diameter (GWSSB SOR 2022-23 Item No. 10.1.D, Page No. 15)

750 mm internal diameter (GWSSB SOR 2022-23 Item No. 10.1.D, Page No. 15)

Class NP4 Test Pressure 0.7 Kg/Sq.Cm.

600 mm internal diameter (GWSSB SOR 2022-23 Item No. 10.1.E, Page No. 15)

900 mm internal diameter (GWSSB SOR 2022-23 Item No. 10.1.E, Page No. 15)

1200 mm internal diameter (GWSSB SOR 2022-23 Item No. 10.1.E, Page No. 15)

This specification covers requirements for manufacturing, testing, supplying, jointing and

testing at work sites of Reinforced Cement Concrete (RCC) pipes, of both pressure and not

pressure varieties used for pumping mains and sewers. Laying of pipes and fittings/specials is

covered in Part: 2. The two parts are complementary and are to be read together for a correct

interpretation of the provisions of this specification.

APPLICABLE CODES

The manufacturing, testing, supplying. Jointing and testing at work sites of RCC pipes shall comply

with all currently applicable statutes, regulations, standards and codes. In particular, the

following standards, unless otherwise specified herein, shall be referred. In all cases, the latest

revision of the codes shall be referred to. If the requirements of this specification conflict with

the requirements of the codes and standards, this specification shall govern.

a.) IS : 458 - Specification for pre-cast concrete pipes (with and without reinforcement) b.) IS :

3597 - Method of tests for concrete pipes.

b.) IS : 5382 - Specification for rubber sealing rings for gas mains, water mains and sewers.

CODE OF PRACTICE

a.) IS : 456 - Code of practice for plain and reinforced concrete. b.) IS : 783 - Code of practice for

laying of concrete pipes.

Design of RCC pipes shall be in accordance with the relevant clauses of IS :

The details of reinforcement shall be as per IS :

D7.5.3 The ends of pipes shall be in accordance with relevant clauses of IS :

The method of manufacture shall be such that the form and the dimensions of the finished pipes

are accurate within the limits specified in relevant clause of IS: 458.The surfaces and edges of the

pipes shall be well defined and true, and their ends shall be square with the longitudinal axis.

The ends of the pipes shall be further reinforced by an extra ring of reinforcement to avoid

breakage duringtransportation.

The R.C.C. pipes and collars/ rubber rings shall be systematically checked for any manufacturing

defects by experienced supervisors so as to maintain a high standard of quality.

Owner/Engineer/its representative or consultants also shall at all reasonable times have free

access to the place where the pipes and collars/ rubber rings are manufactured for the purpose

of examining and testing the pipes and collars/ rubber rings and of witnessing the test and

All tests specified either in this specification or in the relevant Indian Standards shall be

performed by the supplier/contractor at his own cost and in presence of Owner /Engineer if

desired. For this, sufficient notice before testing of the pipes and fittings shall be given to

Owner/Engineer in writing.

1.5.1.5 If test is found unsatisfactory, Owner/Engineer may reject any or all pipes of that lot. The

decision ofOwner/Engineer in this matter shall be final and binding on Contractor and not

subjected toany arbitration or appeal.

Cement used for the manufacture of RCC pipes and collars shall conform to relevant IS codes.

The Pipes shall be manufactured from Ordinary Portland Cement.

Aggregates used for the manufacture of RCC pipes and collars shall confirm to IS :

The maximum size of aggregate should not exceed one-third the thickness of the pipe or 20 mm,

whichever is smaller.

MIXING AND CURING WATER

Water shall be clean, colorless and free form objectionable quantities of organic matter, alkali,

acid, salts or other impurities that might reduce the strength, durability or other desirable

qualities of concrete and mortar.

Reinforcement used for the manufacture of the RCC pipes and collars shall be mild steel Grade I

or medium tensile steel bars conforming to IS : 432 (Part-1) or hard-drawn steel wire

conforming to IS : 432 (Part-2). Reinforcement cages for pipes and collars shall be as per

relevant requirements of IS :458.

Concrete used for the manufacture of RCC pipes and collars shall conform to IS : 456. The

minimum cement content and minimum compressive strength of concrete shall be as per

relevant requirements of IS: 458. Compressive strength tests shall be conducted on 15 cm

cubes or standard size cylinders in accordance with the relevant requirements of IS: 456 and

Pipes manufactured in compliance with IS : 458 shall be either water cured or steam cured

in accordance with the relevant requirements of IS :

The internal diameter, wall thickness and length of barrel and collar of pipes, reinforcement

(longitudinal and spiral), type of ends and minimum clear cover to reinforcement and

strength test requirements shall be as per the relevant clauses/ tables of IS: 458for different

classes of pipes.

The tolerances regarding overall length, internal diameter of pipes or sockets and barrel

wall thickness shall be as per relevant clause of IS:

WORKMANSHIP AND FINISH

Pipes shall be straight and free from cracks except that craze cracks may be permitted. The

ends of the pipes shall be square with their longitudinal axis so that when placed in a straight

line in the trench no opening between ends in contact shall exceed 3mm in pipes up to

mm diameter (inclusive), and 6 mm in pipes larger than 600 mm diameter. D.7.6.8.2 The

outside and inside surfaces of the pipes shall be smooth, dense and hard and shall not be

coated with cement wash or other preparation unless otherwise agreed to between Owner/

Engineer and themanufacturer or supplier.

D.7.6.8..3 The pipes shall be free from defects resulting from imperfect grading of the

aggregate, mixing or moulding.

D.7.6.8..4 The pipes shall be free from local dents or bulges greater than 3 mm in depth and

extending over a length in any direction greater than twice the thickness of barrel.

D.7.6.8.5 The deviation from straight in any pipe throughout its effective length, tested by

means of a rigid straight edge parallel to the longitudinal axis of the pipe shall not exceed, for

all diameters 3mm for every meter run.

All Pipes for testing purposes shall be selected at random from the offered stock of the

manufacturer and shall be such as would not otherwise be rejected under the criteria of

tolerances asmentioned in IS:458.

During manufacture, tests on concrete shall be carried out as per IS: 456. The manufacturer

shall supply, when required to do so by Owner/Engineer the results of compressive test of

concrete cylinders or cubes made from the concrete used for the pipes. Every pressure pipe

shall be tested bythe manufacturer for the hydrostatic test pressure.

Ahmedabad Municipal Corporation

D.7.7.3 The specimen of Pipes for the following tests shall be selected in accordance with

Clause 9.1 of IS: 458 and tests in accordance with the methods described in IS :

i.) Hydrostatic test

ii.) Three edge bearing test( Including ultimate strength test )

iii.) Absorption test

Note : Three edge bearing load to produce 0.25 mm crack on bottom of pipes shall be as

specified in IS:

SAMPLING AND INSPECTION

In any consignment, all the pipes of same class and size and manufactured under similar

conditions of production shall be grouped together to constitute a lot .The conformity of a lot

to the requirements of this specification shall be ascertained on the basis of tests on pipes

selected from it.

The number of pipes to be selected from the lot for testing shall be in accordance with Table

Pipes shall be selected at random from lot size. In order to ensure randomness, all the pipes

in the lot may be arranged in a serial order and starting from any pipe.

All pipes selected as per clause 9.2 shall be inspected for dimensional requirements, finish

and deviation from straight.

The number of pipes to be tested for tests under clause 9.2 shall be in accordance with

column 4 of Table 15 of IS: 458. These pipes shall be selected from pipes that have satisfied

the requirements mentioned in Clause 9.1.1.of IS:458.

A lot shall be considered as conforming to the requirements of IS: 458 if the following

conditions are satisfied.

(a) The number of defective pipes (those not satisfying one or more of the requirements for

dimensions. finish and deviation from straight) shall not be more than the permissible

number given in column 3 of Table 15 of IS:

(b) All the pipes tested for various tests as per Clause 7,8 & 9.1.1 shall satisfy corresponding

requirements of the tests.

(c) In case the number of pipes not satisfying requirements of any one or more tests, two

further samples of same size shall be selected and tested for the test or tests in which failure

has occurred, all these pipes shall satisfy the corresponding requirements of the test.

The following information shall be clearly marked on each pipe :

(a) Internal diameter of pipe

(b) Class of pipe

(c) Date of manufacturer

(d) Pipe numbers and

(e) Name of manufacturer or his registered trade-mark or both.

(f) Any other information suggested by Engineer-in-charge.

Jointing of RCC pipes shall be done as per the requirements of following specifications and as

per the relevant IS. The type of joints shall be collar joint. After jointing, extraneous material,

if any, shall be removed from the inside of the pipe and the newly made joints shall be

thoroughly cured.

D.7.10.1.2 COLLAR JOINT (RIGID)

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Ahmedabad Municipal Corporation

After laying the RCC pipes at proper alignment and gradient their abutting faces shall be

coated with hot bitumen in liquid condition by means of a brush. The wedge-shaped groove

in the end of the pipe shall then be filled with a tarred gasket in one length for each joint.

The collar shall then be slipped over the end of the pipe and the next piped butted well

against the tarred gasket by suitable appliances approved by Owner/Engineer so as to

thoroughly compress the tarred gasket into the grooves, care being taken that the

concentricity of the pipes and level are not disturbed during this operation. The collar shall

then be placed symmetrically over the end of the two pipes and the space between the

inside of the collar and the outside of the pipe filled with a mixture of cement and sand in

proportion 1:1, tempered with just sufficient water to have a consistency of the semi-dry

conditions, well packed and thoroughly rammed with caulking tools. The joints shall be

finished off with a fillet sloping at 45o to the side of the pipe. The finished joints shall be

protected and cured thoroughly as directed by owner/engineer. Any plastic solution or

cement mortar that may have been squeezed into the inside of the pipe shall be removed so

as to leave the inside of the pipe perfectly clean.

The pipes having diameter 900mm and above shall be provided internal joint also with CM

1:1 for this purpose directly the edges of the pipes shall be chipped off and then CM shall

have to provided. The surface shall be finished smoothly to allow smooth flow.

CLEANING OF PIPES

As soon as a stretch of RCC pipes has been laid complete from manhole, for a stretch as

directed by owner/Engineer contractor shall run through the pipes both backwards and

forwards a double disc or solid or closed cylinder 75mm less in diameter than the internal

diameter of pipes. The open end of an incomplete stretch of pipeline shall be securely closed

as may be directed by owner/Engineer toprevent entry of mud or silt etc.

If as a result of the removal of any obstructions Owner/Engineer considers that damages may

have been caused to the pipelines, he shall be entitled to order the stretch to be tested

immediately. Should such test prove unsatisfactory, contractor shall amend the work and

carry out such further tests as are required by owner/Engineer.

It shall also be ascertained by contractor that each stretch from manhole to manhole or the

stretch as directed by Engineer is absolutely clear and without any obstruction by means of

visual examination of the interior of the pipe line suitable enlightened by projected sunlight

All RCC pipes shall be measured according to the work actually done and no allowance will

be made for any waste in cutting to the exact length required. The measurement for pipes

shall be in running meters nearest to a cm. of length along the centre line of pipe as actually

laid at work sites.

The rate for providing, laying and jointing of RCC pipes shall be deemed to include the cost

of collars/rubber rings, jointing material, testing and extra excavation required for ordinary

bedding of pipes and also for collars and pipe sockets, if any.

If any damage is caused to the pipeline during the execution of work or while cleaning the

pipeline as specified, Contractor shall be held responsible for the same and shall replace the

damaged pipelineand the same at his own cost to the full satisfaction of Engineer.

Item No. : 08 Lowering, laying and jointing R. C. C. pipes in C. M. 1.1 1/2 of following diameters in

proper position, grade and alignment at all level as directed by Engineer-in-charge

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Ahmedabad Municipal Corporation

including conveyance from stores to site of work, labour, giving hydraulic testing as per ISI

code. (Based on GWSSB SOR 2022-23, Item No. 11; Page-39)

300 mm internal diameter (Based on GWSSB SOR 2022-23, Item No. 11.b.6 ; Page-39)

450 mm internal diameter (Based on GWSSB SOR 2022-23, Item No. 11.b.10; Page-39)

600 mm internal diameter (Based on GWSSB SOR 2022-23, Item No. 11.b.10; Page-39)

750 mm internal diameter (Based on GWSSB SOR 2022-23, Item No. 11.b.10; Page-39)

900 mm internal diameter (Based on GWSSB SOR 2022-23, Item No. 11.b.10; Page-39)

1200 mm internal diameter (Based on GWSSB SOR 2022-23, Item No. 11.b.10; Page-39)

LAYING OF PIPES AND FITTINGS/SPECIALS

This specification covers the requirements for laying of pipes and fittings/specials below

APPLICABLE CODES

The laying of pipes and fittings/ specials shall comply with all currently applicable statutes,

regulations, standards and codes. In particular, the following standards, unless otherwise

specified herein, shall be referred to. In all cases, the latest revision of the standards/

codes shall be referred to. If requirements of this specification conflict with the

requirements of the standards/codes, this specification shall govern.

CODES OF PRACTICE

(a) IS : 783 - Code of practice for laying of concrete pipes.

(b) IS : 3114 - Code of practice for laying of cast iron pipes.

(c) IS : 3764 - Safety codes for excavation work

(d) IS : 4127 - Code of practice for laying of glazed stoneware pipes

(e) IS : 5822 - Code of practice for laying of welded steel pipes for water supply

(f) IS : 6530 - Code of practice for laying of asbestos cement pressure pipes

CARTING & HANDLING

Pipes and fittings/ specials shall be transported from the factory to the work sites at places

along the alignment of pipeline as directed by Owner/ Engineer. Contractor shall be

responsible for the safety of pipes and fittings/ specials in transit, loading/ unloading. Every

care shall be exercised in handling pipes and fittings/ specials to avoid damage. While

unloading, the pipes and fittings/ specials shall notbe thrown down from the truck on to hard

surfaces. They should be unloaded on timber skids with steadying ropes or by any other

approved means. Padding shall be provided between coated pipes, fittings/ specials and

timber skids to avoid damage to the coating. Suitable gaps between pipes should be left

at intervals in order to permit access from one side to the other. In case of spigot socket

pipes, care should be taken regarding orientation of pipes while unloading. As far as possible

pipes shall be unloaded on one side of the trench only. The pipes shall be checked for any

visible damage (such as broken edges, cracking or spilling of pipe etc.) while unloading and

shall be sorted out for reclamation. Any pipe, which shows sufficient damage to prelude it

from being used, shall be discarded.

Dragging of pipes and fittings/ specials along concrete and similar pavement with hard

surfaces shall beprohibited.

Each stack of pipes shall contain only pipes of same class and size, with consignment or

batch number marked on it with particulars of suppliers/manufacturer wherever possible.

Storage shall be done on firm level and clean ground and wedges shall be provided at the

bottom layer to keep the stackstable.

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Ahmedabad Municipal Corporation

The stack shall be in pyramid shape or the pipes laid length wise and crosswise in alternate

The pyramid stack shall be made for smaller diameter pipes for conserving space in storing

them. Theheight of the stack shall not exceed 1.5 m.

Fittings/specials shall be stacked under cover and separated from pipes.

Rubber rings shall be stored in a clean, cool store away from windows, boiler, electrical

equipment and petrol, oils or other chemicals. Particularity in the field where the rubber

rings are being used it is desirable that they are not left out on the ground in the sun or

overnight under heavy frost or snow conditions.

BONING STAVES AND SIGHT RAILS

In laying the pipes and fittings/ specials the centre for each manhole/ chamber or pipeline

shall be marked by a peg. Contractor shall dig holes for and set up two post (about 100mm

x100mm x1900 mm) at each manhole/ chamber or junction of pipelines at nearly equal

distance from the peg and at sufficient distances therefrom to be well clear of all intended

excavation, so arranged that a sight rail when fixed at a certain level against the post shall

cross the centre line of the manhole/ chamber or pipes lines. The sight rail shall not in any case

be more than 30m apart, intermediate rails shall be putup if directed by Owner/Engineer.

Boning staves of 75mm x 50mm size shall be prepared by Contractor in various lengths, each

length being of a certain whole number of meters and a fixed tee-head and fixed

intermediate cross pieces, each about 300 mm long. The top-edge of the cross piece must be

fixed below the top-edge of this tee head at a distance equal to the outside diameter of the

pipe or the thickness of the concrete bed to be laid as the case may be. The top of cross pieces

shall indicate different levels such as excavation for pipe line, top of concrete bed, top of pipe

etc. as the case may be.

The sight rail of size 250 mm x 40 mm shall be screwed with the top edge resting against the

level marks. The center line of the pipe shall be marked on the rail and this mark shall denote

also the meeting point of the centre lines of any converging pipes. A line drawn from the top

edge of one rail to the top edge of the next rail shall be vertically parallel with the bed of the

pipe, and the depth of the bed of pipe at any intermediate point may be determined by letting

down the selected boning staff until the tee head comes on the line of sight from rail to rail.

The post and rails shall be perfectly square and planed smooth on all sides and edges. The

rails shall be painted white on both sides, and tee-heads and cross-piece of the boning

staves shallbe painted black. For the pipes converging to manhole/ chamber at various levels,

there shall be a rail fixed for every different level. When a rail comes within 0.60 M of the

surface of the ground, a higher sight- rail shall be fixed for use with the rail over the next

point. The posts and rails shall in no case be removed until the trench is excavated, the pipes

are laid and Owner/Engineer gives permission to proceed with the back filling.

The type of bedding for pipes shall be granular bedding as specified and directed by Engineer-

Laying of pipes and fittings/specials

All precautions shall be taken during excavation and laying operations to guard against

possible damage to any existing structure/ pipeline of water, gas, sewage etc. After excavation

of trenches, pipes shall not be lowered unless the dimensions of trenches and bedding

work for pipes at the bottom of the trenches are approved and measured by Owner/Engineer.

Pipes and fittings/specials shall be carefully lowered in the trenches. Special arrangements

such as cranes, tripods with chain pulley block for lowering the pipes and fittings/ specials

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Ahmedabad Municipal Corporation

shall be made by Contractor. In no case pipes and fittings/ specials shall be dropped. Slings of

canvas or equally non-abrasive material of suitable width or special attachment to fit the ends

of pipes and fittings/ specials shall be used to lift and lower the coated pipes and

fittings/specials. The pipes and fittings/specials shall be inspected for defects and be rung with

a light hammer preferably while suspended to detect cracks. If doubt persists, further

confirmation shall be done by pouring a little kerosene/dye on the inside of the pipe at the

suspected spot. No sign of kerosene/dye should appear on the outside surface. Pipes and

fittings/specials damaged during lowering or aligning shall be rejected by Owner/ Engineer.

All the pipes are to be laid perfectly true both in alignment and to gradient specified. In case

of spigot and socket pipe the socket end of the pipe shall face upstream, except when the

pipelines runs uphill in which case the socket ends should face the upgrade. The lying of

pipes shall always proceed upgrade of a slope. After placing a pipe in the trench, the spigot

end shall be entered in the socket and the pipe forced home and aligned to required gradients.

The pipes shall be secured in place with approved backfill material tamped under it except at

the socket. Pipes and fittings/ specials which do not allow a sufficient and uniform space for

joints shall be removed and replaced with pipes and fittings/ specials ofproper dimensions to

ensure such uniform space. Precautions shall be taken to prevent dirt from entering the

jointing space.

At times when pipe laying is not in progress, the open ends of pipe shall be closed by a

watertight plug or other means approved by Owner/ Engineer. During the period that the plug

is on, the Contractor shall take proper precautions against floating of the pipe owing to entry

of water into the trench. Wherever it is necessary to deflect pipe form a straight line, either in

the vertical of horizontal plane, to avoid obstruction or where long radius curve are

permitted the deflection allowed at joints shall not exceed 2 1/2o. In case of pipes, with joint

to be made with loose collars, the collars shall be slipped on before the next pipe is laid. The

pipes shall be laid such that the marking on pipesappears at the top of the pipes.

The cutting of pipe for inserting valves, fittings or specials shall be done in a neat and

workman like manner without damage to the pipe so as to leave a smooth end at right angles

to the axis of the pipe. For this purpose, pipe-cutting machine shall be used.

Thrust blocks shall be provided, to counteract hydraulic thrust, at places wherever directed by

owner/engineer and as per relevant drawing

Jointing for pipes and fittings/specials shall be done in accordance with the relevant

specificationsdepending upon the type of pipes being used.

TESTING AND COMMISSION

Testing and commissioning of pipes shall be done in accordance with the relevant

specifications.

Trenches shall be back filled with approved selected excavated material only after the

successful testing of the pipeline. The tamping around the pipe shall be done by hand or other

hand-operated mechanical means. The water content of the soil shall be as near the optimum

moisture content as possible. Filling of the trench shall be carried out simultaneously on both

sides of the pipe in such a manner that unequal pressure does not occur. Back filling shall be

done in layers not exceeding 45cm.

Each layer shall be consolidated by watering, ramming, care being taken to avoid damage to

the pipeline. In case of mild steel Pipes/specials, the spiders provided during assembly and

welding shall be retained until the trench is refilled and consolidated. Where timbers are

placed under the pipeline to aid alignment, these timbers shall be removed before back filling.

Signature of Bidder Page 6 of

Ahmedabad Municipal Corporation

REINSTATEMENT OF ROAD/FOOTPATH

Reinstatement of road/footpath shall be done as per the requirements of local authorities and

therelevant specification after completion of work.

CLEARING OF SITES

All surplus materials, and all tools and temporary structures shall be removed from the

site as directed by Owner/Engineer and the construction site left clean to the satisfaction of

Owner/Engineer.

 The measurement for excavation in trenches shall be done in following

manner and will be paid accordingly.

i. Length :As per the actual length of pipes and fittings/special laid at work site.

ii. Width & Cross sections : As per instructions of Engineer-in-charge.

iii. Depth : Average depth of trench from ground level to the bottom level of

D.8.6.6 Measurement for pipes and fittings/ specials shall be in accordance with the

relevantclause(s) of specification for particular type of pipes.

Fencing provided along the sides of trenches and pits shall not be paid for separately and

Contractor shall take into account the costs of such works and quote accordingly.

In case of the metal packing or dressed stones not being deposited as specified or being

mixed up with excavated materials and not available for the reinstatement of

road/pavement, the cost of the metal packing or dressed stones required shall be charged to

Contractor by Owner/Engineer.

Service lines if damaged during excavation shall be made good either by contractor or by

other agency as Owner/Engineer may decide and wholly in either case at the expense of

Contractor. For the service lines of water and drainage above 150mm dia., the cost of the

diversion, supporting etc. will be paid extra as per actual.

Contractor shall not be paid any additional compensation for excess excavation over what is

specified as well as for any remedial measures that are specified.

The excess excavated material shall be carried away from site of works as specified, failing

which in view of public safety and traffic conveniences Owner/Engineer may carry out the

work byany other agency at Contractor’s risk and cost.

Item No : 10 Constructing Chamber of following size including excavation, refilling, BBCC

(1:5:10) for foundation, C.C.Channel (1:2:4), finished 15 mm thick cement plaster

inside in CM 1:3, finishing with cement slurry, Brick masonary in CM 1:5 & excluding

the cost of chamber seat cover etc.completed.

0.60 X 0.45 mt. size Inside Clear, Depth from 0.0 to 0.90 meter

0.60 X 0.75 mt. size Inside Clear, Depth from 0.0 to 0.90 meter.

0.75 X 0.75 mt. size (Inside Clear) Depth from 0.0 to 1.20 meter.

The sewet trench shall be excavated to the alignment and gradient shown on the plan and

section. In all storts soil including oil masonary asphalt roads and wet. excavation . The

sewer excavation shall be commenced at the down stream end of the sewer and be

continued upto the gradient as directed. The trench shall not open more than 60 meters

in advace of the completed sewer only when directed by the Engineer in charge looking to

the progress of the work in obtaining the formation of the bottom of the trenches the

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Ahmedabad Municipal Corporation

usual methods of suing sight rails and bonning roads shall be adopted during the whole of

the process. The center line of uniform height shall be carried clearly on each rail. The

depth of the excavation and invert of the sewer shall be checked by means of bonning

road of appropriate length and also straight edge.

The bed of the trench be shall well remmed before starting laying of sewer ines and

cement concrete and masonary work.

Where trenches are deep in bad grounds the sides shall be supported by suitable imbering

of shorting work looking to the nature of soil near big or important structures, the sides

of the trenches shall be closely and securely timbered. If any settlement of the building is

anticipated the timbering shall be left in the ground. The various materials excavated shall

be separately stacked so that in refilling the may be relaid on the same order as before

and least possible damage shall be done carpet on the public roads and private

properties. Surface covering consisting of asphalt carpet shall be kept on one side and

preserved for reinstatement. The excavated earth shall not heaped near the trenchers so

as to caused unnecessary obstruction along the pulling inspection, trenches etc. shall be

tunneled under only as necessary. The side of the trenches shall be nearly vertical and

plumb & red light shall be placed at each end at intervals as instructed and further

protested by rope fence. Necessary caution boards shall also be erected and diaced as

directed by the Engineer in charge.

Wherever possible material excavated from the trenches of whatever kind shall not

placed nearer than 3 meters from the outer edge of the excavated trench. The utmost

shall have to be taken in refilling the trenches so that no damage may be done no sewer

no lump shall be allowed to be put around the sewer. The remming of the filling shall be

done and well watered. The surplus earth shall be removed directed within 30 meters

lead. The measurement of the work shall be exact length and width of the trench as

specified or as per City Engineer instruction and depth shall be measured vertical as per

section upto invert or the pipe lind The City Engineer reserves the right of extra

excavation on either side if considers necessary for the safely of the work.

The bottom and sides of the trench shall be dressed in level and plumb in all directions

before any concrete in India. In case the excavation is done deeper than required no filling

shall be allowed to bring the formation to proper level but contractor shall have to lay

cement or lime be concrete of filling or other acceptable materials as directed by C.E. at

contractor won cost so as to come to proper information, in case bas formation are met

with the work shall have be done as per instruction of C.E. necessary arrangements for

watering trenches must be provided be contractor and without proper watering trenches

will not be allowed to be tilled to further. Contractor shall have to make arrangement for

acees to invert of the sewer and for inspection of the ware as ordered by the Engineer. If

is required to shired or after the alignment section of diameter of the pip the contractor

shall carry or altered the alignment section or diameter of the pipe the contractor shall

carry out the altered work at the rates quoted by him for the original work for items and

contractor shall not claim any expenses due to the changes made.

In case no work shall be done at night or on Sundays & other holidays and during the

recess time except in and other holiday the case of bad grounds such as running sand

where the work must be executed various day night without intruption when so ordered

by the Engineer.

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Ahmedabad Municipal Corporation

All existing water pipe storm drains sewer line railway tract, electric cables etc. which do

not in the opinion of Engineer required to be charged in location shall be supported and

protected from injury by the contractor. The contractor shall be liable to pay all damages

to water pipe, drains electric and telephone cables and to private property during the

execution of this contract and the same will be recovered from the running bills or

thedeposit of work whenever it becomes necessary in the opinion of the Engineer in

charge location of any existing sewers drains etc. not otherwise from in these

specification the contractor shall do the work of making such change and the work shall

be paid for as extra work. All places of public utility etc. shall be kept accessible for use.

No extra payment shall be made for land sides and side slopes done without prior

approval of the Engineer in charge.

Wherever natural soil commends winder excavation the mentioned above the same shall

be given after approved C.E. The rate for excavation for easy jointing and caulking nothing

extra shall be paid for this.

Refilling of trenches shall be done only after the grade of line and hydraulic test

practicable of the lines are checked and approved of and order given by the Engineer in

charge. The refilling shall be accompanied by through watering the layers of 0.50 metrs.

Further refilling shall be done there after and process should be repeated till trenches are

completely refilled. Temping and ramming with rammers shall have to be done at all place

of important work where ordered by Engineer in charge. After the trench is give the

trenches shall have to be refilled within 4 days with complete watering. If the contractor

fails to do watering satisfactory corporation shall get it done at the risk and cost of the

contractor with or without giving any notice and the expenses incurred in doing so

recovered from the contactor either in cost or from his payment through bills.

The brickbats shall be of new bricks, hared well burnt and broken to 40 mm nominal size.

These shall be free from earth and shall be got app. use. Sand shall be clear coarse, sharp

and free from earth and other impurities. Mixing shall be done on brick or stone platform

or of brickbats to mortar shall be measured in heaps by brick height irregular measure. If

ordered by C.E.

Concrete shall be laid in layers of 15 cms. and well consolidated maintained by the

contractor for before commencing the brick work. over boxes, concrete shall be well

watered. The mix shall be done in prop. of 1 : 5 :

Cement shall confirm to M-3, sand shall confirm to M-6, coarse agg. shall confirm to M-13,

water shall confirm M-1.

The prop. of the cement of sand coarse agg. shall be 1 : 5 : 10 i.e. 1 part of cement, 5 part

of sand and 10 parts of coarse agg. by volume. and the work shall be carried out as per

inst. of Engineer in charge and as per C.3.

Brick work cement mortar :

Signature of Bidder Page 9 of

Ahmedabad Municipal Corporation

Bricks shall be table brick confirming of approved kiln specifications as laid sown n PWD

Hand book NO. 2. These shall be well burnt and free from all defects and shall be got

approved by the Engineer in charge before the work is started. Cement to be used for

mortar shall comply with PWD Hand book specifications, cement mortar in the brick work

shall be 1 part of cement, 5 parts of sand. Every brick well sacked in water is required to

be laid I full & closed joints of cement mortar the thickness of which shall not exceed

cms. If on removal of centering any open joint shall be found, these shall be pointed

immediately. Special care shall taken to make the face of brick work smooth brick work

shall be toothed or shall racked back in coarse.

All intrades of curves shall be worked from temple strictly made to dimensions as per

1974-75 latest plan and section approved by C.E.

Brick work in general shall be of first class workmanship & shall be executed according to

the plan working proper dimention & as directed by the Office in charge from time to

time. Brick should be thoroughly wetted in water before use. All brick work to be cleaned

& wetted before laying cement mortar shall be prepared in special iron pals. And mixed

bag of 1.25 cft. or 1 cft. as measured as the case may be. All materials shall be stacked in

one side so as not to obstruct traffic in any way. The masonry should be constructed in

proper workmanship like manner with jointing plumb etc. to confirm with the general

specification No. 45 PWD Hand Book. The face work should be nearly finished. The shall

be kept watered for a week at least three days after the date of completion.

Providing and laying cement concrete 1:2:4

(1 cement :2 coarse sand :4 graded stone aggregate 20 mm nominal size)

RCC Work :- In general, plain and reinforced concrete work for manholes shall be carried

out in accordance with latest version of IS 456 unless otherwise specified in this

specification. The slab of manhole shall be cast with shutters lined with plywood and shall

smooth finished. For avoiding surface cracks due to variation in atmospheric temperature

and exposure to direct sunlight, RCC slab of manholes after casting shall be kept wet. M

15 grade of concrete used for construction of RCC manholes shall have minimum cement

content of 360 kg/cum of concrete. Bar bending schedule for reinforcement shall be

prepared by contractor and got approved from owner/ engineer before proceeding with

the work. Minimum cover to the reinforcement shall be 40 mm.

The rate includes cost of all labour, materials, tools and plant etc. required for satisfactory

completion of this item as described above.& the drawing as per A.M.C Dr. S.O.R shall be

final. The rate shall be for a unit of one number basis.

Providing TMT bar.

TMT bars shall conform to M-18. Mild steel binding wires shall conform to M-21

Signature of Bidder Page 10 of

Ahmedabad Municipal Corporation

The work shall consist of furnishing and 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 of fixing 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 suitably encased to prevent any splitting of

All the reinforcement bars shall be accurately placed 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 noncorrodible 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 or brick and wooden blocks shall not be used. Layers of bars shall be separated by

spacer bars, precast mortar blocks or other approved devices. reinforcement after being

placed in position shall be maintained in a clean condition until completely embedded in

concrete. Special care shall be exercised to prevent any displacement of reinforcement in

concrete already placed. To prevent reinforcement from corrosion, concrete cover shall

be provided as indicated on drawings. All the bars producing from concrete and to which

other bars are to be spliced and which are likely to be exposed for a period exceeding

days shall be protected by a thick coast of neat cement grout.

Bars crossing each other where required shall be secured by binding wires (annealed) of

size not less than 1 mm in such manner that they do not slip 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 mm or 1.25 mm times the maximum size of the coarse

aggregate whichever is greater by concrete between 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.

Signature of Bidder Page 11 of

Ahmedabad Municipal Corporation

Whenever indicated on the drawings or desired by the Engineer- in-charge, bars shall be

joined by coup lings which shall have a cross-section sufficient to transpit the full stresses

of bars. The ends of the bars that are joined by coupling shall be upset for sufficient length

so that the effective cross section at the base of threads is not less than norma l cross-

section of the bar. Threads shall be standard threads. Steel for coupling shall conform to

When permitted or specified on the drawings, joints of reinforcement bars shall be butt-

welded so as to transmit their full stresses. Welded joints shall preferably 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 welding using a process which excludes

air from the molten metal and conforms 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 before

welding. Only competent welders shall be employed on the work. 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.

R.C.C. Bedding :

Cement concrete for the bottom portion of manhole shall consist of one part of cement

two parts of sand four parts of black trap metal of other approved material of 0.6 to

cms size from well graded as per instruction. The rate includes all necessary materials

mixing lifting placing ramming watering etc. the exposed faces to be neatly finished

smooth with cement as per instructions. The concrete work to kept constantly watered

for at least fortnight.

Cement Plaster :

Cement plaster 15 mm thick shall be done using cement mortar of 1 part of cement &

parts of sand in uniform thickness with surfaces trely in plums. The work in general shall

comply with general specifications for plaster No. 64 in PWD hand book. The plaster

surfaces to be kept damp at least for a fortnight. All internal sides of the manholes

including soffit of the arch shall be provided with cement plaster.

FRC manhole cover with seat to be set in cement mortar with cement concrete of 1 : 2 :

prop. alround. FRC cover shall be marked with year mar AMC. etc. & arrow showing the

direction of flow.

Foot steps shall be of the best quality PVC as specified above true to dimensions. The rate

includes mixing the same in position as directed PVC foot steps of approved design and

quality shall have to be fixed if so ordered by C.E. without extra charges. PVC steps shall

be fixed at interval of 37 cm. vertically & 22 cm. horizontally starting from the invert of

Signature of Bidder Page 12 of

Ahmedabad Municipal Corporation

Mode Measurment

The mode of measurement shall be on Nos.

Item No : 11 Constructing Slab Type M.H. Chamber Of The Following Size Including

Excavation, Refilling, Brick Bats Cement Concrete (1:5:10) of thickness 15 C.M.,

CC Channel (1:2:4) of thickness 10 C.M., finished 15 mm thick cement plaster

inside & outside (Only for shaft) In Cm 1:3, Finishing With Cement Slurry, P/F

Mm Dia M.S.Steel Hdpe Coated Steps 35 Cm C/C At 35 Cm Staggered Masonary

In Cm 1:5, Rcc Slab In Cc1:1.5:3 of thickness 15 C.M.,Including Cantering &

Reinforcement (Single jalli at 15 C.M. c/c bothway 10 mm dia.)But Excluding The

Cost Of Manhole Seat Cover Etc..Completed Of Size 0.75 X 1.00 Meter (Inside

Clear, M.H. length should be parallel to the flow)

(Based on Drainage SOR 2015-16; Item No.14)

1.00 to 2.00 meter depth, (Slab at Ground level)

2.00 to 3.00 meter depth, (Slab at below 0.60 mt. From G.L.)

Manhole shall be provided at every change of alignment, gradient or diameter

of sewer/storm water drains, Bends and junctions in the sewer/drain shall be grouped

together in manhole as far as possoble. The maximum distance between inspection

chambers shall be about 25 meters. Where the diameter of sewer/drain is increased, the

soffit of the pipe shall be fixed at the same level and necessary slope given to the channel

of manhole/inspection chamber. The minimum internal sizes of manhole/inspection

chamber shall be as per the respective item of work. The manhole/inspection chamber

shall be constructed as per the detailed drawings and as directed by Engineer. The bed

concrete and the brick masonry shall be constructed of such thickness as shown on

drawing. The brick masonry shall be constructed in C.M. (1:5), plastered on both faces

with 15 mm cement plaster in C.M. (1:3). The channel shall be semicircular in the bottom

half and of diameter equal to the sewer/drain. Above the horizontal diameter, the sides

shall be extended vertically to the same level as the crown of the outgoing pipe and the

top edge shall be suitable rounded off. The branch channels shall also be similarly

constructed with respect to the benching out at their junction with the main channel as

appropriate fall suitable rounded off in the direction of flow in the main channel shall be

given. The channel at the bottom of manhole / inspection chamber shall be plastered

with C.M. (1:3) and finished smooth. Rungs shall be provided in all manholes/inspection

chambers over 0.6 mtr in depth and shall be of cast iron conforming to IS:5455. These

rungs shall be fixed staggered in two vertical runs, 300 mm apart horizontallyand 300 mm

c/c vertically. The top rung shall be 450 mm below the manhole/ inspection chamber

cover and the lowest not more than 300 mm above the benching. The

manhole/inspection chamber frame and cover shall be of cast iron of specified weight and

shall conform to the requirements given in IS:1726. The covers and frames shall be cleanly

cast and they shall be free from air and sand holes and from clod shuts. They shall be

neatly dressed and carefully trimmed. All castings shall be free from voids whether due

to shrinkage, gas inclusion or other causes.Covers shall have a raised chequered design on

the top surface to provide an adequered nonslip grip. Cover shall be capable of easy

opening and closing and it shall be fitted in the frame in workmanship like manner. The

cover shall be gastight and water tight. The size of covers specified shall be considered

Signature of Bidder Page 13 of

Ahmedabad Municipal Corporation

as the clear internal\dimensions of the frame. Covers and frames shall be coated with a

black bituminous composition. The coating shall be smooth and tenaceous. The frame of

manhole/inspection chamber cover shall be firmly embeded to correct alignment and

level in cement concrete on the top of the masonry. The item shall be executed as per the

detailed drawing and as directed by Engineer. Precast R.C.C. cover of required size and

thickness shall be provided if specified in the item of work.

FRC SEAT COVER:

The frame shall be fixed in cement concrete of M15 grade all around and finished

with neat cement. The cover shall have a minimum thickness of 100 mm and weighing

kg. The fibers shall constitute 1% of the weight of the concrete in the form of 50 mm to

100 mm long high tensile steel wires. For the cover, MS sheet lapping of 3 gauge shall be

provided to avoid damage to the edges. Similarly for frame, MS angle/flat shall be

provided along the edge. Both MS sheet and angle shall be painted with black bituminous

paint. The cover should have suitable lifting arrangement. The fiber reinforced frame and

cover shall be manufactured as per the drawing approved by Owner/Engineer. The size,

type, weight, and locking arrangement for frame and cover shall be as specified

RCC Work :- In general, plain and reinforced concrete work for manholes shall be carried

out in accordance with latest version of IS 456 unless otherwise specified in this

specification. The slab of manhole shall be cast with shutters lined with plywood and shall

be smooth finished. For avoiding surface cracks due to variation in atmospheric

temperature and exposure to direct sunlight, RCC slab of manholes after casting shall be

kept wet. M 20 grade of concrete used for construction of RCC manholes shall have

minimum cement content of 360 kg/cum of concrete. Bar bending schedule for

reinforcement shall be prepared by contractor and got approved from owner/ engineer

before proceeding with the work. Minimum cover to the reinforcement shall be 40 mm.

The rate includes cost of all labour, materials, tools and plant etc. required for

satisfactory completion of this item as described above. The rate shall be for a unit of one

Item No : 12 Rate reduction over item of Constructing Slab Type M.H. Chamber of size

1.00 x 0.75 mt for constructing slab @ depth more than 0.60 mt below Ground Level

(Max. 3 unit of DM should be reduced in this item)

Item No : 13 Constructing Slab type M.H. Chamber of the following size including excavation,

refilling, brick bats cement concrete (1:5:10) of thickness 15 C.M., CC Channel (1:2:4) of

thickness 10 C.M., finished 15 mm thick cement plaster inside & outside (Only for shaft)

in CM 1:3, finishing with cement slurry, P/F 4 mm dia M.S.Steel HDPE coated steps

cm c/c at 35 cm staggered in masonary CM 1:5, RCC Slab in CC 1:1.5:3 of thickness

C.M., including Cantering & reinforcement (double jalli at 15 C.M. c/c bothway 12 mm

dia.) but excluding the cost of Manhole seat cover etc..completed. of Size 1.00 X

meter (Inside Clear, M.H. length should be parallel to the flow.

1.00 to 2.00 meter depth, (Slab at Ground level)

2.00 to 3.00 meter depth, (Slab at below 0.6 mt. From G.L.)

3.00 to 4.00 meter depth, (Slab at below 1.00 mt. From G.L.)

Signature of Bidder Page 14 of

Ahmedabad Municipal Corporation

5.00 to 6.00 meter depth, (Slab at below 1.00 mt. From G.L.)

6.00 to 7.00 meter depth, (Slab at below 1.00 mt. From G.L.)

Item No : 14 Rate reduction over item of Constructing Slab Type M.H. Chamber of size

1.00 x 1.40 mt for constructing slab @ depth more than 0.60 mt for ( MH 2 to 3 mt

depth) and 1.0 mt for (MH above 3.0 mt depth) below Ground Level (Max. 5 unit of DM

should be reduced in this item)

Specification is same as specification of Item No 08, only the MH Chamber size is

mentione in this item is follows.

Mode Measurment

The mode of measurement shall be on Nos.

Item No : 15 Dismantling of existing Arch type manhole up to Arch and then Const. Slab type

manhole of following size incl. excavation, refilling and & finished 15 mm thick cement

plaster inside in CM 1:3, P/F 4 mm dia M.S.Steel HDPE coated steps 35 cm c/c at 35 cm

staggered in masonry CM 1:5, incl. cost of RCC Slab in CC 1:1.5:3, including Cantering &

reinforcement as directed by engineer in charge. Rate includes carting of debris and

1.0 x 0.75 mt (inside clear) RCC Slab of thickness 15 C.M& reinforcement (Single jalli

at 15 C.M. c/c bothway 10 mm dia.) From 0 to 2 mt depth (Slab at Ground level)

1.00 x 0.75 mt (inside clear) RCC Slab of thickness 15 C.M& reinforcement (Single jalli at

15 C.M. c/c bothway 10 mm dia.) From 2 to 3 mt depth (Slab at below 1.00 mt. From

1.40 x 1.00 mt (inside clear) RCC Slab of thickness 23 CM & reinforcement (double jalli

at 15 C.M. c/c bothway 10 mm dia.) From 0 to 2 mt depth (Slab at Ground level)

1.40 x 1.00 mt (inside clear) RCC Slab of thickness 23 CM& reinforcement (double jalli at

15 C.M. c/c bothway 10 mm dia.) From 2 to 3 mt depth (Slab at below 1.00 mt. From

1.40 x 1.00 mt (inside clear) RCC Slab of thickness 23 CM & reinforcement (double jalli

at 15 C.M. c/c bothway 10 mm dia.) From 3 to 4 mt depth (Slab at below 1.00 mt. From

The manholes shall be Dismantling of existing Arch type manhole up to Arch and then

Const. Slab type manhole as per plan and section approved by the Addl. C.E. The

specifications for different items of manholes are as under :

Excavation: This shall be done as per specification mentioned in item No.1 Excavation.

Brickbats cement concrete in proportion (1:5:10) For detailed specification refer R & B

Dept. booklet for General Technical Specification for building works , Page no. 31

Section.No. 5.3.8(a)

Brickwork(1:5):

For detailed specification refer R & B Dept. booklet for General Technical Specification

for building works ,Page no. 43 , Section. No. 6.12(B).

C.C. Channels :

Signature of Bidder Page 15 of

Ahmedabad Municipal Corporation

Cement concrete for the inverts and channels of manholes shall consist of one parts of

cement 2 parts of sand and 4 parts of aggregates of black trap metal of approved

materials of sizes from 0.6 to 2.5 cm. well graded as per instructions.

The rate includes all necessary materials mixing, laying and ramming and watering. The

exposed faces to be finished with neat cement as per instructions. The channel shall be

half round in lies with the dia of pipe as per drawing and instruction of the engineer in

charge. Proper benching shall be provided at both sides of the channel.

Cement Plaster(1:3) :

For detailed specification refer R & B Dept. booklet for General Technical Specification for

building works , Page no. 104 , Section. No. 17.58(I) Except that the thickness of the

plaster shall be 15 mm instead of 10 mm.

4 mm dia M.S Steel HDPE coated steps 35 cm c/c at 35 cm staggered

For detailed specification refer R & B Dept. booklet for General Technical Specification for

building works , Page no. 159 , Section. No. 24.13 and fixation or any change at the site

according to the direction of Engineer-in-charge in charge

Carting of Surplus Earth :

The surplus earth which is left an site after refilling and proper watering of the trenches

shall have to be carted away upto a distance within 30 mts. & shall be spread at the site

according to the direction of Engineer-in-charge in charge.

RCC Work :- In general, plain and reinforced concrete work for manholes shall be carried

out in accordance with latest version of IS 456 unless otherwise specified in this

specification. The slab of manhole shall be cast with shutters lined with plywood and shall

be smooth finished. For avoiding surface cracks due to variation in atmospheric

temperature and exposure to direct sunlight, RCC slab of manholes after casting shall be

kept wet. M 20 grade of concrete used for construction of RCC manholes shall have

minimum cement content of 360 kg/cum of concrete. Bar bending schedule for

reinforcement shall be prepared by contractor and got approved from owner/ engineer

before proceeding with the work. Minimum cover to the reinforcement shall be 40 mm.

The rate includes cost of all labour, materials, tools and plant and size etc. required for

satisfactory completion of this item as described above.& the drawing as per A.M.C Dr.

S.O.R shall be final.

The rate shall be for a unit of one number basis.

Item No : 16 Providing and fixing S.W. gully trap with C.I. grating\ brick masonry chamber and

water tight C.I. cover with frame of 300mm x 300mm size (inside) with standard

weight.(i) Square mouth traps. (A) 100mm x 100mm size P type (Based on Building SOR

2023-24, Item No. 24006AA, NBO Item 24.19)

(1) Water shall conform to M-1. (2) Cement mortar of proportion 1 : 5 shall conform to to

M-11. (3) Burnt brick shall conform to M-15. (4) The S.W. Gulley trap of 100 mm. x 10-0

mm. size shall conform to M-70.

Excavation for gulley trap shall be done true to dimensions and levels as indicated on

plans or as directed. The excavation work shall generally be done as per relevant

specification of earth work.

Signature of Bidder Page 16 of

Ahmedabad Municipal Corporation

The gulley trap shall be fixed over cement concrete 1 : 5 : 10 (1 cement : 5 sand :

graded brick bats aggregate 40 mm. nominal size) foundation, 650 mm. square and

mm. thick. The depth of top of concrete below the ground level shall be 675 mm. The

jointing of gulley outlet to the branch drain shall be done similar to jointing of S. W. pipe

as described in item No. 24.1 (A).

Brick masonry chamber : After fixing and testing gulley and branch drain, a brick masonry

300 x 300 mm. inside with bricks in C. M. 1 : 5 (1 cement : 5 sand) shall be built be built

with a 100 mm. brick work round the gully trap from the top of bed concrete upto ground

level. The space between the chamber walls and the trap shall be filled with cement

concrete 1 : 5 : 10. The upper portion of the chamber i.e. above the top level of the trap

shall be plastered inside with cement mortar 1 : 3 (1 cement : 3 sand) finished with

floating coat of neat cement. The corners and bottom of the chamber shall be rounded of

so as to slope towards the grating.

Fixing FRC G.T. round cover with frame incl. fixing the same.

Mode of measurements & payment :

The rate includes cost of all labour, materials, tools and plant etc. required for satisfactory

completion of this item as described above.The rate shall be for a unit of one number

Item No : 17 Making connection to the ex.M.H.in running sewer incl. Dewatering and other

required machinery etc. of following dia pipes at any convenient time. All damaged

work shall be well repaired as per instructions. etc..complete.

Making connections to the Ex. MH in running sewer of any dia pipes at any convenient

time when MH is found empty. All damage work shall be well repair instructions etc.

comp.The pipes of any dia and any material shall be cut as per requirement to make

connection in existing manhole. Reinforcement bars shall also have to be cut in existing

manhole as per requirement and making good the same. The dis-mental materials shall be

carried to places at all lead as directed by Engineer-in-charge. If directed the work shall

have to be done at night.

The measurement, shall be as per No.

Item No : 18 Cutting the pipes of following dia coming in the new M.H.in running sewer

including cutting bars, including removing debris /silt from the M.H. and carting at a

suitable distance etc. complete as directed. No payment for M.H. work will be made

until pipe is not cut completely in all respect.

150 mm to 300 mm dia.

400 mm to 600 mm dia.

Cutting the pipe of dia 150 to 300 mm incl. cutting the bars, in new mm at any depth it

read. And finishing smooth. Removing any type debris form the MH and courting away at

a suitable dist. The cutting edge shall be finished smooth with CM 1:3 and CC 1:2:4.The

M/s shall be on No. basis.

Item No : 19 Repairing damaged M.H. and rasing M.H. up to road level incl. removing damaged

brick work and repairing by brick masonry in C.M. 1:5 and plaster in C.M. 1:3 and fixing

C.I. steps and existing MH sheet cover, removing the debris from MH and carting the

same as directed.

(A) up to 0.15 mt. (@ Two Coarse)

(B) up to 0.35mt. (@ Four Coarse)

(C) up to 0.65 mt. (@ Seven Coarse)

(D) up to 0.90 mt. (@ Ten Coarse )

Signature of Bidder Page 17 of

Ahmedabad Municipal Corporation

Repairing damaged M.H. and rasing M.H. up to road level incl. removing damaged brick

work and repairing by brick masonry in C.M. 1:5 and plaster in C.M. 1:3 and fixing C.I.

steps and existing MH sheet cover, removing the debris from MH and carting the same

as directed. Also

The M/s shall be on No. basis.

Item No : 20 Repairing damaged I.C./ Raising removing damaged brick work and repairing by

brick masonry in C.M. 1:5 and plaster in C.M. 1:3 and fixing C.I. steps and existing

chamber sheet cover, removing the debris from chamber and carting the same as

Repairing damaged I.C./ Raising removing damaged brick work and repairing by brick

masonry in C.M. 1:5 and plaster in C.M. 1:3 and fixing C.I. steps and existing chamber

sheet cover, removing the debris from chamber and carting the same as directed.

The M/s shall be on No. basis.

Item No : 21 Providing F.R.C. MH seat cover incl. carting to the work site etc. comp. Directed.

F.R.C. Extra Heavy Duty (EHD-35) Manhole Covers & Frames Cover : 728mm ø &

mm thick circular cover, 35.00 MT load design, 100x2mm MS flat allround, 16mm ø plain

round bar for lifting the cover & should be fitted with plastic cups. Frame : 560 mm ø

clear opening, outer size- 888x888x175 mm. On the upper periphery of frame 25 x 3 mm

wide MS flat should be well embed in concrete to protect the edges of frame. FRC

E.H.D.-35 manhole cover & frame described as above

F.R.C. Heavy Duty [HD-20] Machinehole Covers - 560 mm ø clear opening, The

dimension of frame and cover as per mentioned in Amend No.1 to IS 12592 : 2002 table

F.R.C. Medium Duty [MD-10] Machinehole Covers - 560mm ø clear opening, The

dimension of frame and cover as per mentioned in Amend No.1 to IS 12592 : 2002 table

F.R.C. Medium Duty [MD-10] Chamber Covers & Frame- 600 x 450 mm clear opening,

The dimension of frame and cover as per mentioned in Amend No.1 to IS 12592 :

F.R.C. Light Duty [LD-2.5] Machinehole Covers & Frames-560mm ø clear opening, The

dimension of frame and cover as per mentioned in Amend No.1 to IS 12592 : 2002 table

Providing and Supplying Fiber reinforced concrete circular cover of following dia,thickness

and Load design, with minimum concrete grade M30 and minimum cement content shall

be 360 kg / m3, with maximum water cement ratio of 0.45, minimum reinforcement shall

be 70 kg/cmt of bars or with welded wire mesh, The minimum volume of fibers shall be

0.5 % of the volume of the concrete. equivalent dia of fiber shall not be greater than

mm, the length to eq.dia ratio of fiber shall be in range of 50 to 80, 2mm th M.S. flat of

full thickness around periphery of cover shall be provided, for lifting arrangement 16 or

mm dia plain bar should be fitted with G.I. or plastic cup as per load design incl. loading

carting unloading stacking etc. complete as per IS 12592 & as directed. Other specification

is same as per AMC central store latest circuler.

The design load is as per mentione in the items.

The M/s shall be on NO basis.

Signature of Bidder Page 18 of

Ahmedabad Municipal Corporation

Item No : 22 Carting and Fixing M.H., Chamber or Catchpite Seat and Cover in line and level

to match exisisting road level in C.C. 1:2:4 and finishing smooth, watering and

protecting for 7 days etc. complete as directed. M.H. seat cover will be supplied

Carting and Fixing M.H., Chamber or Catchpite Seat and Cover in line and level to match

exisisting road level in C.C. 1:2:4 and finishing smooth, watering and protecting for 7 days

etc. complete as directed. M.H. seat cover will be supplied byA.M.C.(from any store).

The M/s shall be on No. basis.

Item No : 23 Providing Kachha of Pakka Dummy in the following dia pipes and removing the

same after completion of the connection work as directed. (GWSSB SOR 2022-23)

300 mm dia. And below sewer line

400 to 500 mm dia. Sewer line

600 to 700 mm dia. Sewer line

Temporary/ permanent plugging and blocking of sewer line, branch connections and

diversion of flows anremoval of all plugs, etc. The plugging in the line is temporary or

permenent is desided by the engineer incharge. And that plugging will be removed by

agency as and when ask by the engineer incharge. No extra cost for removing of plugging

Item No : 24 Providing Dead Cantering using good quality Country Wood Planks, wall Plate of

required thickness and size including placing the nece. supports of reqd. size, nailing,

fixing with mortar, levelling. All specification for dead centring as per standard engg.

practice etc. comp. as directed.

Providing Dead Cantering using good quality Country Wood Planks, wall Plate of required

thickness and size including placing the nece. supports of reqd. size, nailing, fixing with

mortar, levelling. All specification for dead centring as per standard engg. practice etc.

comp. as directed.

The M/s shall be on Smt. basis.

Item No : 25 Supplying, labour for break down repairing work for activities like excavation,

disliting, removing debris from trench back filling etc. comp. as directed by Eng.in

charge.(Building SOR 2023-24,(Basic rates for Labour work))

Labour charges - Mazdoor (Male) (Sr. No. 1051 Code L-22, Page

Labour charges - Mazdoor (Fe-Male) (Sr. No. 1050 Code L-21,

Labour charges - Supervision for Machinery (Sr. No. 1058 Code

L-29, Page No.39)

Providing Labour for Mice. Work for Breakdown work releted job including required tools

etc.comp.Work with available equipment for breakdown type of work. No extra cost will

be given for the equpement used by the labour for the work.

The M/s shall be on No basis.

Item No : 26 Barricading the entire break down or excavated area on rental basis using

wooden ballies / M.S.angles at max. 2.00 meter centre to centre, C.G.I. Sheet, reflective

paint / Board out side to avoid accident & for smooth traffic diversion & movement

including cautionary board etc. Item also includes for making temporary sufficient nos

of lighting arrangement through out the work with necessary required arrangement.

The same shall be removed after completion of work. (Only for break down work from

start to complete) (Based on Drainage SOR 2015-16)

Signature of Bidder Page 19 of

Ahmedabad Municipal Corporation

For detailed specification refer5th revision of MORTH (2013) & also amendment shall be

applicable to the latest versions.

The M/s shall be on SMT basis.

Item No : 27 Providing TMT Bar FE415 reinforcement for R.C.C. work including bending,

binding and placing in position complete upto floor two level (upto 10 ton)

For detailed specification refer R & B Department booklet for General Technical

Specification for building works.

M/s. shall be on Kgs basis.

Item No : 28 Brick work using common burnt clay building bricks having crushing strength

not less than 35kg./Sq.Cm. In foundation and plinth in Cement Mortar 1:5.(1-Cement:

-fine sand)(B) Conventional.

Foundation Masonary: Providing and laying 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: 6 (1 cement : 6 fine sand). This includes pointing, curing, scaffolding,

etc. complete Materials: Water shall conform to M-1 Cement shall conform to M-3 Sand

shall conform to M-6. Brick shall conform to M-15 Cement mortar shall conform to M-11.

Workmanship: Proportion: The proportion of the cement mortar shall be 1:6 (1 cement :

fine sand) by volume. Wetting of bricks: The bricks required for masonry shall be

thoroughly wetted with clean water for about two hours before use or as directed. The

cessation of bubbles, when the bricks are wetted with water is an indication of through

wetting of bricks. Laying: Bricks shall be laid in English bond unless directed otherwise.

Half or cut bricks shall not be used except when necessary to complete to bond; closer in

such case shall be cut to required size and used near the ends of walls. A layer of mortar

shall be spread on full width for suitable length of the lower course. Each brick shall first

be properly bedded and set home by gently tapping with handle of trowel or wooden

mallet. It side face shall be flushed with mortar before the next brick is laid and pressed

against it. On copletion of course, the vertical joints shall be fully filled form the top with

mortar. The walls shall be taken up truly in plumb. All courses shall be laid truly horizontal

and all vertical joint shall be truly vertical. Vertical joints in alternate course shall generally

be directly one over the other. The thickness of brick course shall be kept uniform. The

brick shall be laid with frog upwards. A set of tools comprising of wooden straight edges,

mason’s sprit level, square half meter rub, and pins, string and plumb shall be kept on the

site of work for frequent checking during the progress of work. Both the faces of walls of

thickness greater than 23 cms shall be kept in proper place. All the connected brick work

shall be kept not more than one meter over the rest of the work. Where this is not

possible, the work shall be raked back according to bond (and not left toothed) at an

angle not steeper than 45 degrees. All fixtures, pipes, outlets of water, hold fasts of doors

and windows etc. which are required to be built in wall shall be embedded in cement

mortar. Joints: Bricks shall be so laid that all joints are quite flush with mortar. Thickness

of joins shall not exceed 12 mm. The face joints shall be raked out as directed by taking

tools daily during the progress of work, when the mortar is still green so as to provide key

for plaster or pointing to done. The face of brick shall be cleaned the very day on which

the brick work is laid and all mortar dropping removed. Curing Green work shall be

protected from rain suitably. Masonry work shall be kept moist on all the faces for a

period seven days. The top of masonry work shall be kept well wetted at the closeof the

day Preparation of foundation bed: If the foundation is to be laid directly on the

excavated bed, the bed shall be leveled, cleared of all loose materials, cleaned and wetted

before starting masonry. If masonry is to be laid on concrete footing, the top of concrete

shall be cleaned and moistened. The contractor shall obtain the engineer'’ approval for

the foundation bed, before foundation masonry is started. When puccas flooring is to be

provided flush with the top to plinth, the inside plinth offset hall be kept lower than the

outside plinth top by the thickness of the flooring. Mode of measurements and payment:

70 | P a g e The measurements of this item shall be taken for the brick masonry fully

Signature of Bidder Page 20 of

Ahmedabad Municipal Corporation

completed in foundation up to plinth. The limiting dimensions not exceeding those shown

on the plans or as directed shall be final. Battered, tapered and curved portions shall be

measured net. No deduction shall be made from the quantity of brick work nor any extra

payment made for embedding in masonry or making holes in respect of following items:

(1) Ends of joints, beams, posts, girders, rafters, purlins, trusses, corbel steps etc. where

cross sectional area does not exceed 500 Sq. cm. (2) Opening not exceeding 1000 Sq. cm.

(3) Wall plates and bed plates, bearing of slabs, chhajas an the like whose thickness does

not exceed 10 Cms. and the bearing does not extend to the full thickness of wall. (4)

Drainage holes, and recesses for cement concrete blocks to embed hold fasts for doors,

windows etc. (5) Iron fixtures, pipes up to 300 mm dia hold fasts and doors and windows

built into masonry and pipes etc. for concealed wiring. (6) Forming chases of section not

exceeding 350 Sq. Cm. in masonry. Apertures for fire places shall not be deducted nor

shall extra labour required to make splaying of jambs, throating and making Arches over

the aperture be paid for separately. The rate shall be for a unit of one cubic meter. Above

Plinth Masonary: Providing and laying Brick work using common burnt clay building bricks

having crushing strength not less than 35 kg/Sq. cm. in cement mortar 1: 6 (1 cement :

fine sand) for superstructure upto floor three level height. This includes pointing, curing,

necessary scaffolding, tools, etc. complete. Materials: Bricks shall conform to M-15.

Cement mortar shall conform M-11. Workmanship: The relevant specifications of item No.

13 shall be followed except that the masonry work shall be carried out above plinth level

to floor two level i.e. for ground floor. The frames of doors, windows, cupboards, etc. shall

be housed into the brick work at the correct location and level as directed. The heavy

steel doors, window frames etc. shall be built in with brick work but for ordinary steel

doors and windows required opening for frames, hold fasts etc. shall be left in the wall

and frames embedded later on in order to avoid damage to the frames. Necessary

scaffolding shall be provided. The supports of the scaffolding shall be sound and strong

tied together with horizontal pieces over which the scaffolding planks shall be fixed.

Simple scaffolding shall be allowed normally. In this case scaffolding hole shall rest in hold

header horizontal coarse only. Minimum number of holes shall be left in brick work for

supporting horizontal scaffolding holes. The contractor is responsible for providing and

maintaining sufficiently strong scaffolding so as to withstand all loads likely to come upon

it. For the face of brick work where plastering is to be done joints shall be racked out to a

depth not less than thickness of joints. The face of brick work shall be cleaned and mortar

dropping removed on very same day that brick work is laid. Mode of measurement: The

masonry work of G. F. i.e. above plinth level to floor two level shall be measured and paid

under this item. 71 | P a g e Brick work in parapet shall be included in the corresponding

masonry item of store immediately below the floor above which the parapet is built. No

deduction shall be made from quantity of brick work. No extra payment shall be made for

embedding in masonry or making holes in respect of following items: The rate shall be for

a unit of one cubic meter Half Brick Masonary: Providing and laying brick partition wall of

11.50 cms thick with good quality bricks of the strength not less than 35 Kg / Sq. c.m. kiln

burnt bricks laid in C.M. 1:4 ( 1 Cement and 4 Coarse sand) including providing 5 cms thick

cement concrete bed 1:3:6 ( 1 Cement : 3 Sand : 6 Grit size 6 mm to 10 mm) after every

layers of bricks including racking out the joints , scaffolding, staging curing, etc. complete

as per the standard specifications in true line, level and plumb for super structure at any

height and level. This includes pointing, curing, necessary scaffolding, tools etc. complete.

Materials: Brick shall conform to M-15. Water shall conform to M-1. Cement shall

conform to M 3. Sand shall conform to M-6. Cement mortar shall conform to M-11.

Workmanship: Relevant specifications of bricks, wetting and laying of bricks, joints, curing

etc. shall conform to item No 13 except the brick work of half bricks shall be carried out.

Cement mortar used in masonry work shall be in proportion of 1 part of cement and

part of sand by volume. All bricks shall be laid strecher wise, breaking joints with those in

the upper and lower courses. The wall shall be taken truly plumb. All courses shall be laid

truly horizontal and all vertical joints shall be truly vertical. The bricks shall be laid with

Signature of Bidder Page 21 of

Ahmedabad Municipal Corporation

frogs upwards. A set of masons tools shall be maintained on work as required for frequent

checking. Mode of measurement and payment: The half brick masonry work in foundation

and plinth shall be measured under this item, the limiting dimensions shall not exceed

those shown in the plan or as directed. Any work done extra over the specified

dimensions shall be ignored. The relevant specifications of item No. 6.12 shall be

followed. The length shall be measured nearest to one Cm. The rate shall be for a unit of

M/s. shall be on CMT basis.

Item No : 29 Providing15mm thick cement plaster in single coat on Rough (Similar) side of

single or half brickwalls for interior plastering upto floor two level and finished even and

smooth in (i) Cement mortar 1:3 (1-cement:3-sand)

For detailed specification refer R & B Department booklet for General Technical

Specification for building works. Plaster thickness is 15mm.

M/s. shall be on SMT basis.

Item No : 30 Constructing Bombay Pattern Type Catch Pit of size 0.60 x 0.60 depth up to 1 mt

including excavation, B.B.C.C. (1:5:10), 23 cms thick brick maso. wall in the prop. of CM

(1:6) with 40 mm thick IPS flooring in the prop M15 at bottom and 15 mm thick cement

plaster inside the catch pit in the proportion of CM (1:3) with out jali etc. comp. as

Constructing Bombay Pattern Type Catch Pit of size 0.60 x 0.60 depth up to 1 mt including

excavation, B.B.C.C. (1:5:10), 23 cms thick brick maso. wall in the prop. of CM (1:6) with

mm thick IPS flooring in the prop M15 at bottom and 15 mm thick cement plaster inside

the catch pit in the proportion of CM (1:3) with out jali etc. comp. as directed.

M/s. shall be on No basis.

Item No : 31 CatchPit Jali (Heavy duty) Fixing P/F FRC catch pit jali with frame 600mm x 600mm

clear opening etc. comp.. As directed by engineer in charge.

CatchPit Jali (Heavy duty) Fixing P/F FRC catch pit jali with frame 600mm x 600mm clear

opening etc. comp.. The cover and frame both are in heavy duty. No extra cost for the

fitting of frame and cover and carting and lifting will given.

M/s. shall be on No basis.

Item No : 32 Providing, laying and jointing in true line and level UPVC pipe (SCH-40) of following

dia. Including fittings of standard make as approved by Engineer-in-charge. (Building

SOR 2023-24, Item code 23061)

Providing, laying and jointing in true line and level UPVC pipe (SCH-40) of

following dia. Including fittings of standard make as approved by Engineer-in-charge. The

pipe is strong and this is for the small connection work during drainage work. All bend and

other solution for the connection of pipe is include in the cost.

M/s. shall be on Rmt basis.

Item No : 33 Dismentaling tiled of stone floors laid in mortar including stacking of serviceable

materilas and disposal of unserviceable materials with all lead and lift.

(Based on Building SOR 2023-24, Item No 20005,Page No:- 140)

Dismentaling tiled of stone floors laid in mortar including stacking of serviceable

materilas and disposal of unserviceable materials with all lead and lift.

Rate included with labour and excess disposal machinary used for the same.

M/s. shall be on Smt basis.

Signature of Bidder Page 22 of

Ahmedabad Municipal Corporation

Item No : 34 Providing & Supplying Hitachi Machine -110 capacity on rental basis in case of

emergency situation and break down type work & also during unavoidable condition as

per instruction of engg.incharge , rate includes all nece. shifting, fuel and operating

charges . (No payment should be allowed for non working condition of machinery )

(Based on central work shop rate)

Unit shall be in Hour basis.

Item No : 35 Providing & Supplying Hitachi Machine -200 capacity on rental basis in case of

emergency situation and break down type work & also during unavoidable condition as

per instruction of engg.incharge , rate includes all nece. shifting, fuel and operating

charges. (No payment should be allowed for non working condition of machinery )

(Based on central work shop rate)

Unit shall be in Hour basis.

Item No : 36 Providing & Supplying hydra carne Machine of 12 tone capacity on rental basis in

case of emergency situation and break down type work & also during unavoidable

condition as per instruction of engg.incharge , rate includes all nece. shifting, fuel and

operating charges. (No payment should be allowed for non working condition of

machinery) (Based on central work shop rate )

Unit shall be in Hour basis.

Item No : 37 Supplying electric breaker machine for RCC slab or asphalt demolishing work on

site by using operator, fuel, power supply etc.complete as directed. (no payment should

be allowed for non working condition of machinery and for pipe line excavation and

M.H. work. Allowed only for break down work)

(Based on Previously approved rate by CE sir )

Unit shall be in Shift basis.

Item No : 38 Supplying Pneumatic Breaker Machine for RCC Slab or Asphalt Demolishing Work

on site by using Operator, fuel, power Supply etc. Complete as Directed. (No payment

should be allowed for non working condition of machinery and for pipe line excavation

and M.H. work. Allowed only for break down work) (Based on Previously approved rate

Unit shall be in Shift basis.

Item No : 39 Hiring of tractor with trolley considering 8 Hrs. as working day hours incl. Driver

(GWSSB SOR 2021-22)

Hiring of tractor with trolley considering 8 Hrs. as working day hours incl.Driver

Item No : 40 Hiring of Three wheeler carrier (Chakado/Rixa) considering 10 Hrs. as working day

hours incl.Driver (GWSSB SOR 2021-22)

Hiring of Three wheeler carrier (Chakado/Rixa) considering 10 Hrs. as working day hours

incl.Driver (GWSSB SOR 2021-22)

Item No : 41 Providing and laying cement concrete 1:5:10 (1- Cement : 5- fine sand : 10-

graded brick bat aggregates 40mm nominal size) and curing complete excluding cost of

formwork in (A) Foundation and Plinth (Building SOR 2023-24 Item Code No. 05009A, as

per NBO Item No. 5.8.3; Page no. 56)

1.0 Materials: Water shall conform to M-1. Cement shall conform to M-3. Sand shall conform

to M-6, Grit shall conform to M-8 Graded stone aggregate 20 mm nominal size shall

conform to M-12.

Signature of Bidder Page 23 of

Ahmedabad Municipal Corporation

2.1 The concrete mix is not required to be designed by preliminary tests. The proportion of

the concrete mix shall be 1:2:4 (1 cement :2 coarse sand : 4 graded stone aggregate

mm nominal size) by volume. Concrete work shall have exposed concrete surface or as

specified in the item.

2.2 The designation ordinary M-100, M-150, M-200, M-250 specified as per I.S Correspond

approximately to 1:3:6, 1:2:4, 1 1/2 :3 and 1:1:2 nominal mix of ordinary concrete by

volume respectively.

2.3 The ingredients required for ordinary concrete containing one beg of cement of 50 Kg. by

weight (0.0342 Cu. M) for different proportions of mix shall be as under:-

Grade of Total quantity of dry Proportion of fine Quantity of

concrete aggregate by volume per 50 aggregate to coarse water per

Kgs, of cement to be taken aggregate 50 Kgs. of

as the sum of individual cement

volume of fine and coarse maximum.

aggregates, maximum

M-100 (1:3:6) 300 Liters Generally 1:2 for fine 34 Liters

aggregate by volume

M-150 (1:2:4) 220 ” but subject to and 32 “

upper limit of 1:1/2 and

lower limit 1:3

2.4 The water cement ratios shall not more than those specified in the above table. The

cement content of the mix specified in the Table shall be increased if the quantity of

water in a mix has to be increased to overcome the difficulties of placement and

compaction so that the water cement ratio specified in the Table is not exceeded.

2.5 Work ability of the concrete shall be controlled by maintaining a water cement ratio that

is bound to give a concrete mix which is just sufficiently wet to be placed and compacted

without difficulty with the means available.

2.6 the maximum size of coarse aggregate shall be as large as possible within the limits

specified but in no case greater than surround all reinforcement thoroughly and to fill the

corners of the form.

2.7 For reinforced concrete work, coarse aggregates having a nominal size of 20mm are

generally considered satisfactory.

2.8 For heavily reinforced concrete members as in the case of ribs of main beams the nominal

maximum size of coarse aggregate should usually be restricted to 5 mm less than the

minimum clear distance between the main bars, or 5 mm less than the minimum cover to

the reinforcement whichever is smaller.

2.9 Where the reinforcement is widely spaced as in solid slabs, limitations of size of the