WIRE FENCING WORK ON DIFFERENT AMC PLOTS ON DIFFERENT TP ROAD IN NARODA WARD NORTH ZONE(ARC)

Sr.No Department No.of work Total Amount

Manager (North Zone). The technical bid shall be opened online on Dt.- 19.08.2026 at

11.00 hrs. Any change / correction / corrigendum in respect of above work shall be placed

on line. Contractors arerequested to see the website before 24 hours of submission of their

Assistant Manager (North zone), Ahmedabad Municipal Corporation

NorthZone Office Building, Memco-Naroda road, Ahmedabad

Deputy Municipal Commisioner

AHMEDABAD MUNICIPAL CORPORATION

"Rajiv Gandhi Bhavan", Memco - Naroda Raod, Ahmedabad-25.

MEMORANDUM OF WORK

Municipal Commissioner invites online e-tenders from interested contractors for WIRE FENCING

WORK ON DIFFERENT AMC PLOTS ON DIFFERENT TP ROAD IN NARODA WARD

NORTH ZONE (ARC)

1 Name of work WIRE FENCING WORK ON DIFFERENT AMC PLOTS

ON DIFFERENT TP ROAD IN NARODA WARD NORTH

2 Tender Amount Rs.10,00,000/- (exclusive of GST). GST will be paid

(Estimate put to Tender) extra by AMC/Authority at prevailing rate to the

3 Tender fee Rs.900.00 Demand Draft in favour of Municipal Commissioner,

(Non refundable) Ahmedabad)

4 Time Limit 12 MONTHS (INcludingMonsoon)

5 Download of Tender Complete bid documents can be downloaded with effect from

Documents Dt.17.08.2026 up to 17:00 Hrs. from the website www.nprocure.com.

6 Required registration Register “E2” classinAMC or PWD in Govt. R&B/CPWD/AMC or

equivalent register with any other state Govt. or institutions.

8 Solvency certificate Solvency certificate issued and valid in current year for an amount

equal to 20% of the Estimated amount put to tender.

9 Earnest Money Deposit Rs.10,000.00 (Demand Draft or pay order or Bank Guarantee in favor

(Bid security) of Municipal Commissioner, AHMEDABAD/) To be submitted as

(1 % of Estimate put to prescribed in 8.0 below. Demand Draft or Bank Guarantee shall be

tender) from Nationalized Bank / Scheduled Bank and valid for 120 days.(As

per AMC finance dept. circular No-5 Dt.5/5/07 & F.D. Circular No.

Dt. 7/08/2010) & attached ANNEXURE - 1 finance dept. circular No -

10 Submission of EMD and In separate sealed cover each for EMD and Tender Fees along with

Tender Fees Tender as described in the invitation of tender and submitted to

Assistant Manager (NORTH zone) , Rajiv Gandhi Bhavan, Memco-

Naroda Road, Ahmedabad To be Submitted Physically As per N.I.T

11 Mode of sending the • Price bid should be submitted by online e-tender only and

TenderDocuments Technical bid should be submitted physically also in sealed

envelope systems By RPAD/Speed post/ Hand Delivery in sealed

covers in Duplicate (One Original & One Duplicate) Each part

shall be separately duly sign & seal by contractor .

12 Last date of online Date.18.08.2026 up to 17.00 hrs.

submission of tender

13 Submission of Price Bid The Price bid shall be submitted online only. It shall not be submitted

14 Opening of Technical bid Technical Bid will be opened online as per N.I.T. in the office of

Addl. City Engineer (North Zone), Rajiv Gandhi Bhavan, Memco –

Naroda Road, Ahmedabad Municipal Corporation, Ahmedabad

15 Tender validity period 120 days from the last date of submission of Tender. it should be valid

for 120 days from the last date of online tender submission.

16 Security Deposit 5 % of Contract Value to be submitted in the form of Bank Guarantee

as per. Bank Guarantee shall be from approved list of AMC of banks

and the issuing branch of bank guarantee shall be of Amdavad 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 15 days from date of receipt of LOI failing which interest

@4% per annum will be charged by AMC.

17 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

a. Labour welfare cess 1% Labour welfare cess as per the Act, 1996 (non refundable) shall be

deducted from each running bill.

18 Time permitted to start Whenever a work is allotted by Engineering staff, whether minor or

parts of work major part of any amount, the contractor shall be bound to start the

work within 48 hours so intimation of work. Communication done

telephonically via SMS, via whatsapp and through letter/ E-mail shall

be considered legal and binding for the same. Contractor shall bound

to execute more than 1 work at the same time as and when required by

the department.

19 During execution of works in any case if any fatal accident (major or minor) occurs due to poor work

and poor safety precautions, then it will be completely contractor’s responsibility and compensation

for the same has to be paid by contractor. During execution of works if any news is published in

print/Electronic/Social media regarding inferior quality of work and poor safety precautions, and

due to inferior quality work any fatal injuries occurs, all the losses due to such accidents and

expenses of legal matters shall be borne by contractor.

Note: 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 Add.CityEngineer(North Zone)

Date: Amdavad Municipal Corporation

Finance dept. circular No-06 Dt.12.05.2025

Seal and Signature of the Bidder Addl City Engineer

AHMEDABAD MUNICIPAL CORPORATION

Invitation for Bid (IFB)

1. The AHMEDABAD MUNICIPAL CORPORATION,( hereinafter called “the Employer”) invites sealed

Tender document from reputed and qualified bidders for the construction of Works detailed in the Table

Sr. Name of Works Approximate Earnest Money Completion

No. value of works Deposit (Rs.) Period

1 WIRE FENCING Rs. 10,00,000/- Rs. 10,000/- 12-- MONTHS

WORK ON DIFFERENT (INcluding

AMC PLOTS ON Monsoon)

DIFFERENT TP ROAD

NORTH ZONE (ARC).

2. Interested bidders shall download the tender documents from AMC’s website

www.amc.nprocure.com/www.nprocure.com.

3. Tender (a complete set of bidding document) fee shall be As per N.I.Tin the form of Demand Draft / Pay

Order from any Nationalized Bank in favor of MUNICIPAL COMMISSIONER, Ahmedabad, payable at

Ahmedabad, which shall be non refundable. The Details of Tender fees shall be submit with scan copy

at the time of Quoting price bid of the tender and Physically to be submitted along with technical bid

Vol.-1 with other enclosure.

4. All bids must be accompanied by Earnest Money Deposit of the amount specified for the Works in the

above Table payable at Ahmedabad and drawn in favor of MUNICIPAL COMMISSIONER,

Ahmedabad, payable at Ahmedabad,. Earnest Money Deposit will have to be specified in Clause 2 of

Financial Condition.

5.Physical submission must be delivered to Asst. Manager (Admin) North Zone, Rajiv Gandhi Bhavan,

Memco – Naroda Road, AhmedabadAs per N.I.T

6.The Bids will be opened on As per N.I.Tat the office of Addl.City Engineer (N/Z) ,1st Floor, Rajiv

Gandhi Bhavan, Ahmedabad Municipal Corporation, Memco-Naroda road, Ahmedabad-25. in the

presence of bidders or their representatives who choose to attend. In the event of the specified date of bid

submission/opening being declared a holiday for the Employer, the bids shall be received /opened on the

next working day at the same place and the same time.

TERMS & CONDITIONS

( A) INSTRUCTIONS TO BIDDERS (ITB)

( B ) GENERAL TERMS & CONDITIONS

( C) FINACIAL TERMS & CONDITIONS

( D ) MAIN CONDITION / FEATURES OF THE WORK

AHMEDABAD MUNICIPAL CORPORATION

TERMS & CONDITION

( A) INSTRUCTIONS TO BIDDERS (ITB)

1. Procedure for Submission of Tender

a).The Bidder should quote the price bid in e- tender form before last date of online submission as per N.I.T and

all other details as asked in the tender.

b).The bidder shall submit the following Tender documents physically in hard copy in two separate envelope

(marked as “original” and other marked as “Duplicate”) in schedule time by RPAD/ Speed Post/ Hand

Delivery in duplicate. This envelope shall be sealed in an outer envelope. The Bid envelopes shall be

marked as follows:-

 Tender Document Vol.

 Registration certificate of class

 Power of Attorney

 Personal Details

 Enclosures as asked in tender

 Technical specifications duly sign by contractor.

c).The envelope shall be addressed to the Employer at the following address:

Assistant Manager, North Zone,

1st Floor, Rajiv Gandhi Bhavan,

Memco-Naroda Road,

d).Bear the following identification:

“TO BE OPENED ONLY IN PRESENCE OF THE EVALUATION COMMITTEE”

e). 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.

f).All information has to be typed or hand written legibly. All pages of the Bid have to be initialed by the

g).ALL INFORMATION HAS TO BE SUBMITTED IN THE PRESCRIBED FORMAT ONLY. Projects for

which incomplete information has been provided will not be considered for evaluation. The Bidder may

attach separate sheets if so required. However, the final bound document submitted, has to be submitted in

vertical A4 size (210 mm X 297 mm) except Form of Bids.

2. Assessment of Submission

2.1The Employer will open the physically submitted document of all the bids received for the package (except

those received late) containing the sealed Tender volume and other enclosures then announce the names of

bidders in the presence of bidders or their representatives who choose to attend on the date and time

mentioned in the IFB. In the event of specified date of bid opening being declared as a holiday for the

Employer, the Tender will be opened at the appointed time and location on the next working day.

2.2 In Physical submission, Bidders detailed and tender fee, E.M.D. shall be opened first. The Employer at the

opening will announce bidder’s names, , the presence/or absence of EMD, the amount and validity of

EMD furnished with each bid, is valid registration and such other details, as the Employer may consider

2.3 The Employer will determine whether the bid is accompanied by the required EMD.

2.4 If the EMD furnished does not conform to the amount and validity period as specified in the Invitation for

Bid and has not been furnished in the form, the bid shall be rejected by the Employer as non-responsive

and the Tender volume will be returned to the bidder.

2.5 Subject to confirmation of the EMD by the issuing bank, the Tender volume accompanied with valid

EMD will be taken up for further evaluation. In case, the Bank does not confirm the EMD, the bid shall be

rejected as non-responsive and no further evaluation carried out.

2.6 The tender volume will further be examined to determine whether the bid has been properly signed, meets

the eligibility and qualification criteria, has the required available bid capacity, is accompanied by the

requisite certificates, undertaking and other relevant information specified in the bid documents and is

substantially responsive to the requirement of the bidding documents and provides any clarification for

ascertaining the correctness of the information/details.

2.7 The Employer shall prepare besides the record of bid opening, minutes of the Bid opening, Including the

information disclosed to those present in accordance with Sub Clause 3.2 thereof.

2.8 The bidders or their representatives who are present shall sign attendance sheet evidencing their

2.9 If the Tender volume is not substantially responsive, it will be rejected by the Employer and will not

subsequently be made responsive by correction or modification or withdrawal of the nonconforming

deviation or reservation.

3. Evaluation and Comparison of Tender volume

The Employer will evaluate and compare only those Tender volumes which are determined to be

substantially responsive in accordance with Clause 2and qualified for award of Contract in accordance

with Clause 5(General Terms and Condition).

4. Procedure for Tender Opening

Received copies of tender in physical form with in schedule time, will be open on schedule date and time.

In the event of specified date of bid opening being declared bidders who qualify the criteria then bidder

bid will be considered for opening of price bid.(Following clause no. 5 of ITB).

5.1 The Employer will award the Contract to the bidder whose bid has been determined to be substantially

responsive to the bidding documents and who has offered the lowest Evaluated Bid Price, provided that

such bidder has been determined to be (i) eligible in accordance with the provisions of Clause 3(General

Terms and Condition); and (ii) qualified in accordance with the provisions of Clause 5(General Terms and

6. Notification of Award

6.1 Prior to expiration of the period of bid validity prescribed by the Employer, the Employer will notify the

successful bidder by cable/fax and confirmed by registered letter that his bid has been accepted. This letter

shall name the sum which 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.

6.2 The notification of award will constitute the formation of the Contract.

7.Asper City Engineer Circular (WRM) no. 6 2011/12 DT: 24/06/2011. A successful Bidder has to

deposit security deposit / Bank Guarantee with in 15 days after receiving letter of Indent. Time limit

of work will commence from the date of issue of work order.

8. Clarification of Bids

8.1 To assist in the examination, evaluation and comparison of bids, the Employer may, at his discretion, ask

any bidder for authentication the correctness of the information/details furnished by him in his bid. Such

request by the Employer and the response by bidder shall be in writing or by cable/fax.

8.2 Subject to above clause, no bidders shall contact the Employer on any matter relating to his bid from the

time of bid opening to the time contract is awarded.

8.3 Any effort by the bidder to influence the Employer in the Employer’s bid evaluation, bid comparison or

contract award decisions may result in the rejection of his bid.

9.1 Information relating to the examination, clarification, evaluation and comparison of bids and

recommendations for the award of a contract shall not be disclosed to bidders or any other persons not

officially concerned with such process until the award to the successful bidder has been announced. Any

effort by a bidder to influence the Employer's processing of bids or award decisions may result in the

rejection of his bid.

10.1 The bidder is advised to visit and examine the Site of Works and its surroundings and obtain for itself on

its own responsibility 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 expense.

10.2 The bidder and any of its personnel or agents will be granted permission by the Employer to enter its

premises and lands for the purpose of such inspection, but only upon the express condition that the

bidder, its personnel and agents, will release and indemnify the Employer and its personnel and agents

from and against all liability in respect thereof and will be responsible for death or personal injury, loss of

or damage to property and any other loss, damage, costs and expenses incurred as a result of the

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Seal and Signature of the Bidder Addl.City Engineer

Date: (North Zone)

AHMEDABAD MUNICIPAL CORPORATION

TERMS & CONDITION

( B ) GENERAL TERMS & CONDITIONS

1. Scope of Bid

1.1 The Ahmedabad Municipal Corporation hereinafter called "the Employer" invites Tender document for

the construction of works (as defined in these documents, hereinafter referred to as "the Works") detailed in

the table given in the IFB.

1.2 The Works consist of:

WIRE FENCING WORK ON DIFFERENT AMC PLOTS ON DIFFERENT TP ROAD IN NARODA

WARD NORTH ZONE (ARC)

2. Source of Funds

2.1 The expenditure on these Works will be met by AHMEDABAD MUNICIPAL CORPORATION.

3. Eligible Bidders

3.1 This invitation for bids is open to bidders who has necessary bid capacity and who meet the following

 A bidder shall not be under a declaration of ineligibility for corrupt or fraudulent practice.

 The bidders shall have a registration with State PWD, and/or CPWD for Required class and or

equivalent with specialization in road works. If contractor is not registered with AMC in the relevant

class, on award of contract he shall be required to register himself with AMC within 3 month's time.

Bidders shall provide such evidence of their continued eligibility satisfactory to the Employer, as the

Employer shall reasonably request.

4. Eligible Material, Equipment and Services

4.1 At the Employer's request, the bidder having offered the lowest evaluated financial bid may be required to

provide evidence of the origin of materials, equipment, and services to the satisfaction of the Employer.

4.2 For purposes of Sub Clause 4.1, "origin" means the place where the materials are mined, grown, produced

or manufactured; similarly for equipments and from where the services are provided.

5. Qualification of the Bidder

To be qualified for award of Contract, bidders shall:

a) Submit a written power of attorney authorizing the signatory of the bid to commit the

General information

All individual firms must complete the information in this form. Nationality information shall be provided for

all owner(s) or applicant(s) that are partnership or individually owned firms.

1 Name of firm:

2 Head office address:

3 Local office address (if any):

4 Telephone/ Contact:

5 E-mail address:

6 Place of incorporation/registration:

7 Year of incorporation/registration:

 Additional information regardinglitigation, debarment, arbitration, etc.

5.3 Disqualification

Even though the Bidders may meet the above criteria, they are subject to be disqualified for any of the

following reasons:

a) Misleading or false representation in the forms, statements and attachments submitted and included in

b) Record of poor performance such as abandoning the work, rescinding of contract for which the reasons are

attributable to the non-performance of the contractor, consistent history of litigation awarded against the

applicant or financial failure due to bankruptcy.

c) Has been identified by the Employer as poor performer in implementation of ongoing AMC works.

5.4 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 Employer

6. One Bid per Bidder

6.1 Each bidder shall submit only one bid per contract package either by himself or as a partner in a joint

venture. A bidder who submits or participates in more than one bid for a contract package will be disqualified.

7. Bidding Documents

The bidder is expected to examine carefully the contents of all the above bid documents. Failures to comply

with the requirements of bid documents will be at the bidder's own risk. Pursuant to Clause 16, bids which are

not substantially responsive to the requirements of the bidding documents will be rejected.

8. Language of Bid

The bid, and all correspondence and documents related to the bid exchanged between the bidder and the

Employer shall be written in the English language. Supporting documents and printed literature furnished by

the bidder may be in another language provided they are accompanied by an accurate translation of the

relevant passages in the English language, in which case, for purposes of interpretation of the bid, the English

translation shall prevail.

9.1. Unless stated otherwise in the bidding documents, the Contract shall be for the whole works as described

in bidding documents, based on the percentage rate amount in the Bill of Quantities submitted online by

9.2. The bidder shall fill (in e-tender) in percentage rate above or below and total amount (both in figures

9.2. The bidder shall fill (in e-tender) in percentage rate above or below and total amount (both in figures

and words) for overall items of the Works provided in the Bill of Quantities

10. Bid Validity

10.1 Bids shall remain valid as per Instruction to Bidders (ITB) after that deadline date for bid submission

specified in Clause. The Employer as non-responsive shall reject a bid valid for a shorter period.

10.2 In exceptional circumstances, prior to expiry of the original bid validity period, the Employer may

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

responses thereto shall be made in writing or by fax. 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 the period of the extension, and in

compliance with Clause 2 ( Financial Terms & Conditions) in all respects.

11. Format and Signing of Bid

11.1 The bidder shall prepare two copies of the documents comprising the bid as described in Instructions to

11.2 The bid shall be typed or written in indelible ink and shall be signed by a person or persons duly

authorized to sign on behalf of the bidder.

11.3 The bid shall contain no alterations, omissions or additions, except those to comply with instructions

issued by the Employer, or as necessary to correct errors made by the bidder, in which case the person

or persons signing the bid shall initial all such corrections.

11.4 All witnesses and sureties shall be persons of status and probity and their full names,

Occupations and addresses shall be printed below their signatures.

12. Deadline for Submission of Bids

Bids must be received by the Employer at the address specified above not later than the time and date

specified in the IFB.

Any bid received by the Employer after the deadline for submission of bids will be returned unopened to the

14. Signing of Agreement

At the same time that the Employer notifies the successful bidder that his bid has been accepted, the Employer

will direct him to submit the Performance Security and attend the Employer's office on a date determined by

the Employer for signing the Form of Agreement.

15. The selection process will lay high emphasis on the ability and competency of contractors to do high

quality work within the given time schedule.

16. The onus of providing, all necessary company / project related information, in appropriate manner and

medium, so as to demonstrate the competency of the bidder and to allow proper evaluation, will rest entirely

17. All clause shall be operative from the date of issue of work order and up to the expiry of original and

extended time limit.

18. Legal Condition:-

 Corrupt or Fraudulent Practices

The Employer will reject a proposal for award if he determines that the Bidder recommended for award

has engaged in corrupt or fraudulent practices in competing for the contract in question. The Employer

will declare the firm ineligible, either indefinitely or for a stated period of time, to be awarded a contract

by AHMEDABAD MUNICIPAL CORPORATION if it at any time determines that the firm has engaged

in corrupt or fraudulent practices in competing for the contract, or during execution.

 “corrupt practice” means behavior on the part of officials in the public or private sectors by

which they improperly and unlawfully enrich themselves and/or those close to them, or induce

others to do so, by misusing the position in which they are placed, and it includes the offering,

giving, receiving, or soliciting of anything of value to influence the action of any such official in

the procurement process or in contract execution; and

 “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

 Municipal Commissioner reserves the rights to reduce/increase the scope of work and contract without

assigning any reason thereof.

 If Ahmedabad Municipal Corporation is convinced that the Bidder has resorted to material

misrepresentation or provided fraudulent information / statement, the said Bidder will be liable for

disqualification / rejection at any stage.

 Proof for fulfillment of eligibility criteria should be submitted along with Tender volume. If the Tender

volume is submitted without valid documents and without proof of eligibility criteria it will be rejected.

 Those who do not meet with the eligibility criteria need not submit the Tender document.

 Tenders, which do not fulfill all or any of condition or are submitted incomplete in any respect or are

conditional tenders, will be rejected.

 Contractor shall be responsible to obey all Labour Laws, Environmental and Safety Laws.(the existing

laws as well as framed from time to time). Any penalties laid due to violation of such laws shall be

directly deducted from the contractor's outstanding.

19. Administrative Conditions:-

 Safety and Signage

Contractor has to arrange for the complete safety of the persons working for project, users of the road i.e.

public and vehicles also. All the arrangements of traffic drums, metal / fiber cones, traffic blinkers, traffic

signs as per design, safety tapes etc. to be arranged at site. Necessary florescent marking on traffic signs to

be provided so that it should be visible at night. During night working hours safety in charge personnel

shall be provided with florescent jackets.

The Contractor has to make all the necessary arrangements for making all the temporary

diversions for proper working at site Including traffic signages, safety cones, traffic blinkers,

barricading tapes, red and green flags etc for making easy smooth and safe conditions for the

traffic. The Contractor shall and must provide above at his own cost.

 Liaison with local authority for electrical connections for the AMC

The contractor is responsible for liaison with local authority for change in supply connection or new

connection on behalf of AMC. It includes filling the necessary application to power Supply Company,

follow up and getting the supply, filling the necessary test reports to the power supply company. All

official fees Including security deposits and other expenses shall be of initially paid by the contractor.

 Contractor shall not sub-let the work without permission of the authority.

Seal and Signature of the Bidder Addl. City Engineer

Date: (North Zone)

AHMEDABAD MUNICIPAL CORPORATION

TERMS & CONDITION

( C ) FINANCIAL CONDITION

1. Cost and Currencies of Bidding

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

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

Currencies of Bid and Payment

 The rates and the prices shall be quoted by the bidder entirely in Indian Rupees

 All payments Including advances, if any, shall be made in Indian Rupees.

2.Earnest Money Deposit :-

2.1 Bank guarantees (and other instruments having fixed validity) issued as surety for the bid shall be valid for

28 days beyond the validity of the bid.

2.2 The EMD of the unsuccessful bidders, except for L1, L2 and L3 bidders, will be returned as promptly as

possible as but not later than 28 days after the expiration of the period of bid validity.

2.3 The EMD of the successful bidder, along with second and third lowest tenders, will be returned when the

bidder has furnished the required performance security and signed

2.4 Earnest Money Deposit may be forfeited

a) if the bidder withdraws his bid 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) furnish the required Performance Security or

ii) sign the Agreement.

3.(A) SecurityDeposit :-

Within 15 (Fifteen) days of the date of receipt of the Letter of Acceptance, the successful bidder shall

deliver to the Employer, a Initial Security Deposit in the form of a Bank Guarantee for an amount

equivalent to 5% (five percent) of the Contract Price .

The Security Deposit to be provided by the successful bidder in the form of a bank guarantee as per

format shall be issued from any Nationalized or RBI approved foreign bank having net worth of more

than Rs.500 Crore of Indian Operation and acceptable to Employer.

(C) Retention :-

a).Retention @ 2% of the value of work done will be deducted from each RA bill. It will be released along

with release of payment of Final Bill.

4. Approved Bank: - As per AMC finance Department Circular

5. No advance for machinery or materials will be given.

6. Mobilization advance will not be given.

7. Quantities in B.O.Q. may vary up to any extent and contractor shall not claim any extra rate for the same.

8. Penalty: - Compensation for (0.10%) zero point one percentage of Delay contract price for uncompleted

work per day subject to a maximum up to ten percentage of contract price or as decided by Municipal

9.Tax, Duties on Materials

All charge on account of Octroi ,excise duties, terminal tax, sales tax. Service tax, VAT etc. on material

procurement or any other component for the works from any source shall be borne by the contractors.

All duties, taxes, Service Tax and other levies payable by the Contractor under the Contract, or for any

other cause as of the date 28 days prior to the deadline for submission of the bids, shall be included in the

rates and prices and the total bid price submitted by the bidder and the evaluation and comparison of bids

by the Employer shall be made accordingly.

10. Qualification of the Bidder

10.1 Experience of bidder

Experience of having successfully completed similar works during last 7 years ending last day of

month previous to the one in which applications are invited should be either of the following.

10.2 Bid Capacity

Assessed Available Bid Capacity = (2 AN –B), where

A= Maximum value of sum of all the contracts executed in any one year during last five years (updated to

the current price level) which shall take into account the completed as well as work in progress :

B= Value of the existing commitments and on-going works to be completed during the next two years

N= Number of years prescribed for completion of the works for which the bids are

Note - 1 : The statements showing the value of existing commitments and on going works as well as the

stipulated period of completion remaining for each of the works listed should be countersigned by the

Engineer-in-charge, of the firm or the relevant division/department of the firm, not below the rank of

Manager / Chief Engineer / ExecutiveEngineer.

2.:- An affidavit duly notorized on Stamp paper of Rs.100/- showing all on going works shall have to

be enclosed while bidding the tender.

Even though the bidders meet the above criteria, they are subject to be rejected, if they have:

(a) made misleading or false representation in the form, statements and attachments submitted, and/

(b) Record of poor performance such as abandoning the work, not properly completing the contract,

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

• Sub-Contractors' experience and resources shall not be taken into account in determining the

bidder's compliance with the qualifying criteria.

Seal and Signature of the Bidder Addl.City Engineer

Date: (North Zone)

AHMEDABAD MUNICIPAL CORPORATION

Tender form B-1

FORM B-1 OF GUJARAT STATE ROADS AND BUILDING DEPARTMENT /

WATER RESOURCES DEPARTMENT may be referred.(only English version)

Note binding on the contractors

01. The terms and conditions of contract mentioned in the Clause no 1 to 77 of Form B-1 of Gujarat State

Road and Building Department / Water Resources Department shall be applicable. Binding on the

contractors unless specifically mentioned about it hereunder in clause no.15 to

02. Please read “Ahmedabad Municipal Corporation “instead of “Government / Government of Gujarat

“wherever written.

03. Please read “ Ahmedabad Municipal Corporation “ instead of “ Government of Gujarat State Public

Works Department/Public Works Department/ Government “ wherever written.

04. Please read “City Engineer" instead of “Superintending Engineer “or Executive Engineer wherever

05. “Ahmedabad Municipal Corporation “herein called as “AMC “

06. “Governor for the state of Gujarat “shall be read as “Municipal Commissioner / Ahmedabad Municipal

07. The contents / details / information mentioned in the relevant point under the heading

08. The contents / details / information mentioned in the relevant point under the heading “NOTICE

INVITING TENDERS” may be read as under-

Point No 1 may be read as: Tenders are invited by Municipal Commissioner ,AMC for the work ofWIRE

FENCING WORK ON DIFFERENT AMC PLOTS ON DIFFERENT TP ROAD IN NARODA WARD

NORTH ZONE(ARC)

 OF AHMEDABAD CITY Point No.3 : The class of contractor shall be as per Memorandum

of Works in Brief.

 The Cl. No. 14.2, 21, 38, 60, 69, 73, 74, 75 shall be read as deleted.

09. The contents / details / information mentioned in the relevant point under the heading

“ADDITIONAL INSTRUCTIONS TO PERSONS TENDERING” shall be read as under-

 Point No .2.1 may be read as per the details mentioned in the tender notice

10. DECLARATION FORM & DECLARATION CERTIFICATE are given separately in Tender

Document and it shall be applicable.

11. TENDER FOR WORKS to be read as given in tender documents / Tender Form.

12. MEMORANDUM to be read as per the details given in tender notice

13. The contents / details / information mentioned in the following CLAUSEunder the heading

“TERMS AND CONDITION OF CONTRACT” shall be read as under-

 Clause 1: Security Deposit: to be read as per the details given separately elsewhere in the

tender documents.

 Clause 2: Liquidated Damages for delay: to be read as per the details given separately

elsewhere in the tender documents.

14. Clause No. 14.2, 21, 38, 60, 69, 73, 74, 75 shall be read as deleted in the form B-1.

Seal and Signature of the Bidder Addl.City Engineer

Date: (North Zone)

AHMEDABAD MUNICIPAL CORPORATION

ENGINEERING DEPARTMENT

GENERAL CONDITION

1. After sanction of tender a Letter of Intent shall be issued to contractor and in response to that letter,

contractor shall have to arrange for Security Deposit within 15 days. If S.D is given within 10days of

issuance of Letter of Intent, time limit shall be counted from that date. If S.D is given after 15 days of

issuance of letter of intent, contractor shall be finned Rs. 200/- per day of delay and shall be deducted

from contractor’s bill. In this case time limit shall start latest by the 10th day of letter of intent,

Security Deposit of 5% of tender amount shall be deposited by pay order, demand draft, . of

nationalized bank /scheduled bank by pay order, demand draft, . of nationalized bank/scheduled bank

only. Contractor shall have to sign contract paper with AMC.

3. In case of earnest money . bounce back, contractor’s tender shall treated as cancelled and the

contractor shall not be given any tender, offer, quotation work in AMC for one year.

4. Conditional tender shall not be accepted

5. Tender validity period is 180 days from the date of opening of tender

6. Muni. Commissioner shall have right to accept, reject the tender as well as the rate at which tender to

be accepted and awarded.

7. Specification of tender items shall be as per PWD manual in general/AMC’s norms and B-1 form

conditions shall be applicable. In case of controversy, Add.C.E’s decision shall be final.

8. Contractor shall have to deposit Earnest Money deposit with tender.

9. Work shall be allotted as per contractors registration class.

10. Contractor shall have to work in such a system that there shall be nodamage to any service line of

electric, telephone, gas, any type of service cable ,drainage or water lines etc. In case of damage to

service line, the whole responsibility of accident shall be on contractor’s shoulder. It will be

responsibility of contractor to safe guard the labours against any accident or damage of lives. In case

of police complain, Contractor shall be held responsible for negligence. In case of soil /land collapse,

contractor shall be held responsible for not supporting the soil suffering with strutting, shuttering

Contractor shall safeguard the labour before allowing the labour to enter in excavated or other site. In

case of accident to labours, contractor shall be held responsible for police complain against him.

AMC’s staff shall be responsible for any accident at the site of the work.

11. Contractor shall take insurance of his all labour. and supervisory staff

12. Only registered contractor shall quote the tender , If the contractor is registered with government then

they shall have to apply to registration in AMC within 90 days from the date of work order.

13. AMC’S general condition and Form -B-1 shall be binding to the contractor B-1 Form is put up on

AMC’s web site.

14. Payment of running bill , final bill shall be as per policy of AMC in force at time of payment

15. Any time of litigation shall be in court of Ahmedabad city jurisdiction only.

16. As per site conditions/requirement of site, there shall be increase or decrease in tender item quantities.

In such case contractor shall not have right to any price rise. In case of decrease in any tender item

quantity, contractor shall not ask for compensation.

17. If any construction material brought to site by contractor , is not as per specification, or any inferior

quality material brought to site, then such rejected material shall be removed from the site within

hours, otherwise AMC can throw away such material at any place and recover the amount for such

removal work from contractor bill. In this case contractor shall not be entitled for compensation.

18. Cost of testing of material shall be done by the contractor. He shall provide vehicle for taking

material/staff from site to testing laboratory/ manufacturing site and contractor shall be bear the cost of

transportation of staff and material.

19. Contractor shall work as per labour Act. Contractor shall not be given any payment if labour act

rules are not followed or insurance of labour is not taken for work

20. Contractor shall deposit the material on site in such a way that it should not become obstruction to any

21. All type of taxes(e.g. sales tax, surcharge, vat etc) to be by the contractor.

22. If asked by AMC Engineering staff, contractor shall take photograph of site of work/before start of

work, during work and after the completion of work, with digital camera and deposit to AMC office or

transfer photograph from camera to AMC computer. No additional cost shall be paid.

23. In case of cancellation/rejection of tender, contractor shall not be entitled forany compensationOr

24. In case of extra item, rate shall be taken from SOR of the year of tender preparation. If item is not

available in SOR, then market rate shall be derived by the Eng. dept by rate analysis. Contractor shall

not ask for the rates as per his rate analysis. This should be clearly understood and taken in to

consideration while quoting the tender by the contractor.

25. During execution of work, contractor shall take safety measures like protection by ropes, drums,

danger sign boards, plastic strips, bamboos, wooden poles etc as per requirement & instruction of

Engg.- in- charge. In case of accident due to lack of protection, contractor shall responsible for police

complains, compensation etc AMC staff shall not be held responsible for contractors negligency.

26. If instructed by AMC officials, contractor shall have to keep daily progress register and get is signed

by Ass. city Engineer. Contractor shall maintain record of daily No. of labours, employed, work done,

rectification work carried out by contractor after Eng.-in-charge inspection & the compliance of the

same. If such rectification work is not done by contractor within 24 days the contractor shall be finned

Rs. 250/- day of delay & shall be recovered from the contractors bill

27. Contractor is not entitled for any type of compensation or right for the cancellation of tender or tender

items by any means.

28. If work is not completed within specified time limit penalty shall be recovered from bills as per tender

29. Deduction from bills shall be done as per rules prevailing or the rules which shall come in to force, by

State or Central Govt.

30. 1% amount shall be deducted for labour welfare fund as per state Govt order.

31. Quantity in item is tentative. It is likely to be change.(increase or decrease) as per site requirement

during execution of work.

32. All above conditions shall over rule the conditions given in Form B-1

33. Contractor shall have to register the work as per labour act & as per building safety act, 1906 with

,Dy.Director building safety act,Shram bhavan, 5th floor labour commissioner office, Khanpur,

34. Befor quoting tender, contractor shall have to take complete information of the work after seeing site

and from the concerned Asst. Engineer or Asst. city engineer.

35. In case of the bank detail are not given then EMD return procedure shall be delayed.

36. Before quoting the tender contractor should know that, he has seen the site & understood the item of

works, site conditions. He should be in a position to provide labours at the time of festivals like

Holi,Diwali, Navratri,Marriageseason,rainy season or any other time of the year Contractor can not

say that he has no labours due to festivals.

I have read all above conditions carefully and ready to work as per above conditions.

Seal and Signature of the Bidder Addl.City Engineer

Date: (North Zone)

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Conctractor's Signature Additional City Engineer

Address & Mobile no. ( North Zone)

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I.S.Sieve Percentage by I.S.Sieve Percentage by

TECHNICAL SPECIFICATIONS

SPECIFICATIONS OF MATERIALS

1.1. Water shall not be salty or brackish and shall be clean, reasonably clear and free objectionable

quantities of silt and traces of oil and injurious alkalis, salts, organic matter and other deleterious

material which will either weaken the mortar or concrete or cause efflorescence or attack the steel in

R.C.C Container for transport, storage and handling of water shall be clean. Water shall conform to the

standards specified in I.S.456-1978.

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 by 30 minutes or

more or decrease of more than 10 per cent in strength of mortar prepared with water sample when

compared with the results obtained with mortar prepared with distilled water shall be sufficient cause

for rejection of water under test.

1.3. Water for curing mortar, concrete or masonry should not be too acidic or too alkaline. It shall be free

of elements which significantly affect the hydration reaction or otherwise interfere with the hardening

of concrete during curing or those which produce objectionable stains or other unsightly deposits on

concrete or mortar surfaces.

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

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

3.1 Cement shall be ordinary Portland slag cement as per I.S. 269-1976 or Portland slag cement as per I.S.

M-4. White Cement :

4.1 The white cement shall conform to I.S. 80412-E

M-5. Coloured Cement:

5.1 Coloured cement shall be with white or gray Portland cement as specified in the item of the work.

5.2 The pigments used for coloured cement shall be of approved quality and shall not exceed 10% of

cement used in the Mix. The mixture of pigment shall be properly grounded to have a uniform colour

and shade. The pigments shall have such properties to provide for durability under exposure to

sunlight and weather.

5.3 The pigment shall have the property such that it is neither by the cement nor detrimental to it.

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

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

matter, loam, mica or another deleterious substance 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.

6.2. Coarse Sand : The fineness modulus of coarse sand shall not be less than 2.5 and shall not exceed

The sieve analysis of coarse shall be as under:

Designation Passing Sieve Designation Passing Sieve

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

I.S.Sieve Percentage by I.S.Sieve Percentage by

Designation Passing Sieve Designation Passing Sieve

M-8. Stone Grit:

8.1. 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 adhesion of mortar Grit shall generally be

cubical in shape and as far as possible flaky elongated pieces shall be avoided. It shall generally

comply with the provisions of I.S. 383-1970. Unless special stone of particular quarries is mentioned,

grit shall be obtained from the best black trap or equivalent hard stone as approved by the Engineer-in-

charge. The grit shall have no deleterious reaction with cement.

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

I.S.Sieve Percentage by I.S.Sieve Percentage by

Designation through Sieve Designation through Sieve

8.3. The crushing strength of grit will be such as to allow the concrete in which it is used to used to built up

the specified strength of concrete.

8.4. The necessary tests for grit shall carried out as per the requirements of I.S.2386(Parts I to VII) 1963, as

per instructions of the Engineer-in-charge. The necessity of test will be decided by the Engineer-in-

charge. The necessity of test will be decided by the Engineer-in-charge.

Sand: Sand Shall conform to specification M-6.

10.1. Proportion of Mix : 10.2.1. Mortar shall consist of such proportions of slaked lime and sand as may

be specified in the item. The slaked lime and sand be measured by volume.

10.2. Preparation of Mortar :

10.3.1. Lime mortar shall be prepared by wet process as per I.S. 1625-1971. Power driven mill shall be used

for preparation of lime mortar. The slaked lime shall be placed in the mill in an even layer and ground

for the 180 revolutions with a sufficient water. Water shall be added as required during grinding (care

being taken not to add more water) that will bring the mixed material to a consistency of stiff paste.

Thoroughly wetted sand shall then be added evenly and the mixture ground for another

10.3. Storage : 10.4.1 Mortar shall always be kept damp, protected form sum and rain till used up , covering

it by tarpaulin or open sheds.

10.4. Use : 10.5.1 All mortar shall be used as soon as possible after grinding it should be used on the day on

which it is prepared. But in no case mortar made earlier than 36 hours shall be permitted for use.

 MATERIAL TESTING Frequency AND Acceptance Criteria AS BELOW

Sr Test Frequency of tests Code for Acceptance Samplling

No testing Criteria Point

a Initial Setting Time 50-100 T – 2 sample Not less than

Final Setting Time 100-200 T – 3 sample IS 4031 part 5 Not more than

IS:12269 600 minutes Site/Plant

200-300 T – 4 sample

300-500 T – 5 sample

500-800 T – 6 sample

810-1300 T – 2 sample

b Fineness by sieve One Sample (Each IS 4031 part 1 90% passed

sample as above) & 2 IS:12269 from 90 micron Site/Plant

c Consistancy One Sample (Each IS 4031 part 4 Above 30%

sample as above) IS:12269

Compressive One Sample (Each IS 4031 part 6 for OPC&PPC Site/Plant

d strength sample as above) IS:12269 on seven day

on twenty eight

a Silt Content by 2 Test / Season IS:383,IS:2386 Up to 3% Site/Plant

b Silt Content by 2 Test / Season As per CPWD Max 8% Site/Plant

c Fineness modulus 2 Test / Season IS:2386,Morth Specification as Site/Plant

d Seive Analysis 2 Test / Season IS:383,IS:2386 As IS-383 Site/Plant

e Water absorption 2 Test / Season IS:383,IS:2386 Less than 3% Site/Plant

f Moisture content 2 Test / Season IS:383,IS:2386 Site/Plant

g Specific gravity 2 Test / Season IS:383,IS:2386 Site/Plant

h Bulk density 2 Test / Season IS:383,IS:2386 Site/Plant

3 Coarse Aggregate

for Building work

a Sieve Analysis 2 Test / Season Is:2386,IS:383 As per relebant Site/Plant

b Impact value 2 Test / Season Is:2386,IS:383 45% Max by Site/Plant

c Flakiness Index Rendom Is:2386,IS:383 35% Max value Site/Plant

as per morth cl

d Elongation Index Rendom Is:2386,IS:383 35% Max value Site/Plant

as per morth cl

e Crushing value 2 Test / Season Is:2386,IS:383 45% Max by Site/Plant

f Moisture content 2 Test / Season Is:2386,IS:383 As per required Site/Plant

g Water absorption 2 Test / Season Is:2386,IS:383 Less than 3% Site/Plant

h Specific gravity 2 Test / Season Is:2386,IS:383 As per standard Site/Plant

a Efflorescene 1 Test / 50000 nos IS 1077/3495 Moderate Site

b Water absorption 1 Test / 50000 nos IS 1077/3495 Less than 20% Site

c Compressive 1 Test / 50000 nos IS 1077/3495 Min. Avg Site

strength 35kg/cm2 &

d Dimension 1 Test / 50000 nos IS 1077/3495 As per standard Site

5 Cement Concrete As Per IS 456-2000 IS 456 Grade Design -

Cubes Ordinary Cube

and Controlled Compressive

Concrete Strength at

Work M3 - no of M10 =

51m3 &above = M35 =

Add sample for each

m3 part there of

TMT bars 1 test / 40 MT IS 1786 Fe-500

bars of different

Conctractor's Signature Additional City Engineer

Address & Mobile no. ( North Zone)

TECHNICAL SPECIFICATIONS:

Following technical specifications shall be applicable to the relevant items of BOQ

TECHNICALSPECIFICATIONSFORCIVILITEMS

Item No. 2 Wire Fancing

Providing and fixing 1.82 meter high fencing with 2.43 meter long M.S. angle posts

40mmx40mmx6mm and oil painting three coats,fixed at 2.50meter C/C with Seven horizontal

lines and two diagonals of galvanised steel barbed wire weighing 9.38Kg/100Rmt, strained

and fixed to posts with G.I. staples, including fixing the posts in ground with 0.30meter x

meter x 0.60meter block in C.C. 1:5:10 etc complete.

The rate shall be for a unit of one RUNNING metre.

Item No. 2 Excavation

Excavation for foundationupto 1.5M. depthincluding sorting out andstacking of

usefulmaterialsanddisposing of theexcavated stuff upto 50Meterlead. Rates are

incl.shoring&strutting.Allkindofsoil

Excavation for foundation for depthfrom 1.5 M. to 3.0 M. including sorting out

andstackingofuseful materials anddisposing of theexcavatedstuffup to 50M. lead.Rates are incl.

shoring &strutting.Allkindofsoil

Excavation for foundation for depthfrom 3.0 M. to 5.0 M. including sorting out

andstackingofuseful materials anddisposing of the excavated stuff upto 50 M. lead.Rates are incl.

shoring &strutting.Allkindofsoil

1 Excavationforfoundation/pits/raft/ trenchesetc.forfollowingdepth,bymechanicalormanual

includingsorting outand stacking of useful materials, dressingof thesides, rammingof bottom,

disposing of theexcavated stuff upto 50m. leadincluding lifts, for all kindof soil, allcompleteas

perdrawing, specifications, instruction & directions of the Engineer-in-charge.

Forallcivil,plumbing, electrical&infrastructureworks. Noextrapaymentwillbe

madeforshoring,struttinganddewatering.

b) from1.5to3.0mtrs

c) from3.0to5.0mtrsG

Anysoilwhichgenerallyyieldstotheapplicationofpickaxesandshovels,spades,rakesor any

suchordinaryexcavatingimplement or organic soil, gravel, silt, sand turf loam,

clay,peatetc. fallsunderthis category. For materials and workmanship for

earthworkandexcavation,relevantspecificationsofIS1200(PartI)andIS:3764shallbefollowe

Thedepthoftheexcavationshallbeaspertheitemdescription.

Clearing theSite:

Thesiteonwhichthe structure is to bebuiltshallbeclearedandall obstructions, loosestones,

materials andrubbish of allkind,bush, woodshall be removed, as directed. Thematerials so

obtainedshallbethepropertyofthe Government and shall be conveyedandstacked as directed,

within 50-m. lead. The roots of the trees comingin thesides

ofthetrenchesshallbecutandcoatedwithhotasphalt.

Alltypesoftrees,woodsetc.whichrequirespriorpermissionofGovt./ForestAuthority, before

cuttingshallbecutafterobtaining suchpermission from them. It shallbe

theContractor'sresponsibilitytoobtainsuchpermissionfromtherespectiveauthorities.

Therateofsiteclearanceisdeemedtobeincludedintherateofearthwork,forwhichnoextrawillbep

Aftercleaningthesite,thecenterlineswillbegivenbytheArchitectandEngineer-in-

The Contractorshall assume full responsibility for alignment, elevation and dimension of

eachand all parts of the work. Contractor shall supplylabours, materials, etc. required

forsettingout the reference marks andbenchmarksmade of MS angle ironand embedded in 1:2:4

CC.Theyshallmaintainthesameaslongasrequiredanddirected.

Theexcavationinthefoundationshallbecarried out eithermanually or

bymechanicalmeans,intruelineandlevel and shall have

thewidthanddepth,asshowninthedrawingsorasdirected. The Contractor shalldothe

necessary shoring and strutting or shall providenecessaryslopesto a safe angle or

steps, as required or directed, at his own cost. No extrapayment shall be made

forsuch precautionarymeasures, taken. The bottom

oftheexcavatedareashallbeleveledbothlongitudinallyandtransversely,asdirected,by

removingexcesssoilandwatering,asrequired.Noearthfillingwillbeallowedforbringingittolevel,if

bymistakeoranyotherreason,excavationismadedeeperorwiderthanshownon the drawings or

as directed. The extra depth or width shall bemade up with concrete

ofthesameproportion,asspecifiedforthefoundationconcrete,atthecostoftheContractor.

The Contractor shall at his own expense andwithout extracharge

makeprovisionofsupportingallutilityservices,lightingthetrenches,separatingandsta

ckingserviceablematerialsneatly,shoring,timbering,strutting,bailingoutwatereithersub

-soilorrainwater,includingpumpingatanystageofthework.

Trenchesshall bekept free of water while masonry or concrete works are in progress and

tillthe Architect and Engineer-in-charge considers it necessary, i.e. till the concrete is

sufficientlyset.

DisposaloftheExcavatedStuff:

Theexcavatedstuffoftheselectedtypeshallbeusedin fillingthe

trenchesandplinthorlevelingthegroundinlayers,includingrammingandwateringetc.complete.

TheContractorshallremovethebalanceoftheexcavatedquantityfromthesiteofwork, toa

place,asdirected, within a leadupto 50m. measuredfromtheouterface of

thebuilding/workunderconsiderationandforalllift.

Theleadistheshortestpracticalroute and not necessarilythe route

actuallytaken.Thedecisionof Engineer-Inchargeshallbefinalinthisregard.

6.0 ModeofMeasurementandPayment:

Themeasurement of excavation intrenches forfoundation shallbe

madeaccordingtothe sectionsoftrenches shown on the drawingor asper sections given by

theArchitectandEngineer-in-charge. Nopaymentshallbemade for surplus excavation made

inexcessof above requirements or due to stepping and slopingback asfound necessary,

onaccountofconditionsofsoilandrequirementsofsafety.

The rate shallincludefor clearing the site, surface dressing, makinglayout of the

building,fixingpermanentgridpointswithMSironposts, embedded in C.C. 1:2:4,

placedsufficientlyawayfromthebuildingandestablishingbenchmarks etc.

Theratesshallincludefornecessaryshoring,timberingandstruttingforprotectionofsidesof the

excavated trenchesandpits, pumping out rainor surface wateratanystage

ofconstructionsoastokeepthetrenches/pitsdry,tothesatisfactionoftheArchitect/Engineer- in-

The rate shall includelevelingand ramming the bottoms of excavations to

receiveconcrete,etc.includingtrimmingtoslopewherevernecessaryetc.complete.

Therateshallbeforaunitofonem3.

ReinforcedCementConcrete

WatershallconformtoM-1CementshallconformtoM-3,SandshallconformtoM-6,Gritshall conformtoM-

8,Gradedstoneaggregate20mm.nominalsizeshallconformtoM-12.

Theconcretemixisnot required tobedesignedbypreliminarytests.Theproportion of

theconcretemixshallbe1:2:4(1cement:2coarsesand:gradedstoneaggregate20.Mm.Nominalsize)byv

olume.Concreteworkshallhaveexposedsurfaceorasspecifiedintheitem.

Thedesignation ordinaryM-100,M.150,M-200,M-250specifiedasperI.S.

Correspondapproximateto

1:3:6,1:2:4,1:1/2:3and1:1:2nominalmixof ordinaryconcretebyvolumerespectively.

Theingredientsrequiredforordinaryconcretecontainingonebegofcementof50kg.Byweight(0.-

342Cu.M.)fordifferentproportionsomixshallbeasmaintained:

Thewatercement ratios shallnotbe morethan specifiedin theabove table. The cementcontentof

the mixspecifiedin the table of water in mixhas tobe increased to overcome

thedifficultiesofplacements and compaction so thatthe eater-cement-ratio specifiedin the table

is notexceeded.

Workabilityof the concrete shallbe controlledbe maintaininga water-cement-ratio that

isfoundto give a concrete mix which is just sufficient wet to be placedand comp laced

withoutdifficultywiththemeansavailable.

The maximumsize ofcourse aggregateshall beas possiblewithin the limits specified but

innocasegreaterthanonefourthminimumthicknessofthemember,providedthattheconcretecanbeplace

dwithoutdifficulty soastosurround all reinforcement thoroughly and to fill thecornersoftheform.

Forreinforcedconcretework,coarseaggregatehavinganominal size of 20 mm.

aregenerallyconsideredsatisfactory.

For heavilyreinforcedconcretemembersin the caseof ribs of

mainbeems,thenominalMaximumsize of coarse aggregate should usuallybe restricted to

5mm.lessthan theminimumcleardistance

betweenthemainbarsor5mm.lessthantheminimumcovertothereinforcementwhicheverissmaller.

Where thereinforcementiswidelyspacedasinsolid slabs, limitationsof Engineer-in-

chargebasedupontheareotherminimumcover.

Proportioning : proportioning shall bedone byvolume, exceptcement whichshall

bemeasuredinterms of bagsof 50kgweight, the volumeofonesuchbeing takenas 0.0342 cu.Meter.

cmsand40cms.deepwhilemeasuringofaggregate.Thesizeofboxes(internal)shallbeshaking

ramming orhammering. The proportioning of sand shall beon

thebasisofitsdryvolumeandincaseofdampsand,allowancesforbulkageshallbemade.

Forallwork,concreteshallbemixedinamechanicalmixerwhichalongwith other

accessories.Shallbekeptinfirstclassworkingconditionandsomaintainedthroughouttheconstruction.

Measuredquantity ofaggregate, sand and cement and so maintainedthroughoutthe

construction. Drum of the mixer while it is continuously running mixshall

beaddedgraduallyandmixingcontinuedforanotheroneahalfminute.Mixingshallbecontinuedtill

materialsareuniformlydistributedanduniformcolourfitheentiremassisobtainedandeachindividual

particle of the coarse aggregate shows complete of mother containingitsproportionate amount

of cement. In no caseshallthe mixing be donefor than 2 minutes

allingredientshavebeenputintothemixer.

When handmixing is permitted by the Engineer-in-charge for small or for certain

otherreasons,itshall bedone on the smooth water tiger platform large enough to allow

efficientturning overthe ingredients of concrete beforeand after adding eater. Mixing

besoarrangedthatonforeigngetsmixedwithneitherconcretenordoesthemixingwaterflowout.Cementin

required number of bags shall be placed in auniform layeron themeasuredquantity of fine

andcoarse aggregate, which shallalso bespread ina layerof uniformthicknesson themixing

platform. Dry coarse andfine aggregate and cement shallthan

bemixedthoroughlybyturningovertogata miniatureto uniformcolour. Specified

quantityofwatershallthanbeadded gradually through arose canandthemassturnedovertilla

mixofrequiredconsistencyisobtained.Inhandmixingquantityofcementshallbeincreasedby

10percentabove thatspecified.

Mixers whichhavebeenout of use formore 30 minutes shall be thoroughly cleaned

beforeputtinginanowbatch.UnlessotherwiseagreedtobyEngineer-in-charge the firstbatch

ofconcrete form the mixture shallcontain onlytwo thirdsif normalquantity

coarseaggregate.Mixing plant shall

bethoroughlycleanedbeforechangingformonetypeofcementtoanother

Thedegree ofconsistency whichshall uponthe natureof the work and methods

ofvibrationofconcreteshallbedeterminedbyregularslumptestsinaccordancewithI.S.1199-

1959.The slumpof 10 mm.to 25mm.shallbe adopted when vibrators are used and80

mm.whenvibratorsarenotused.

ContractorshallgivetheEngineer-in-chargeduenoticebeforeplacinganyconcreteintheformsto

premithimtoinspectandacceptthefalse workand formsto

theirstrength,alignment,andgeneralfitnessbutsuchinspectionshallnot relieve

thecontractoroftheresponsibilityforthesafetyofmen machinery, concreteshall materialsand

forresultsobtained.Immediatelybeforeconcretingallformsshallhavethoroughlycleaned.

Centeringdesignanditserectionshallbegotapprovedfromtheengineer-in-charge.

Onecarpenterwithhelpershallinvariblybekeptpresentthroughtheperiodofconcreting.

Movement of labour and

otherpersonsshallbetotallyprohibitedforreinforcementlaidinposition. For

accesstodifferentspartssuitablemobileplatformsshallbe providedso

thatsteelreinforcementinpositionisnotdisturbed.Forensuringpropercover,mortarblocksofsuitab

le size shall be cast and tied to the reinforcement. Timer, kapachi or metal

piecesshallnotbeusedforthispurpose.

Transportingandlaying:

Themethod of transporting andplacingconcertshallbeasapproved. Concrete

shallbesotransportedandplacedthatnocontamination, segregation orloss of its constituent

materialtakesplace.

Placingofconcrete:

NoconcreteshallbeplacedinanypartofthestructureuntiltheapprovaloftheEngineer-incharge

hasbeenobtained.

Concreting shallproceed continuouslyover thearea betweenconstruction joints. Freshconcrete

contraction joint is formed. Concrete shallbe compactedin itsfinal position within30minutes

ofitsdischargefromthemixer. Except whereotherwiseagreedtobythe Engineer-in-

charge,concreteshallbedepositedinhorizontal layersto acompacted depthof notmorethan

0.5meter when internal vibrators areused andnot exceeding0.30 meterin allothercases.

UselessotherwiseagreedtobytheEngineer-in-

charge,concreteshallnotbedroppedintoplacefromwayastoavoidsegregation.

Whenconcretinghastoberesumedonasurfacewhichhashardened,itshallberoughened,sweptclean,thoro

ughlywettedandcoveredwitha13mm.

Thicklayer of mortar shallbe freshly mixedandplaced immediately before placing

ofnewconcrete.Whereconcretehasnotfullyhardened,alllatenciesshallberemovedbyscrubbingthewet

surface with wire or bristlebrushes, care bringtaken to avoid dislogement ofany

particlesofcoarseaggregate. Thesurfaceshall then be thoroughly wetted, allfree waterremoved

andthen coated with neat cement grout. The firstlayer of concrete to be placed on

thissurfaceshallnot exceed150mm.in thickness andshallbewellrammed against old work,

particularattentionbeinggiventocornersandclosespots.

Allconcreteshallbecompactedtoproduceadensehomogenousmasswiththeassistanceofvibrators,

unless otherwisepermittedbytheEngineer-in-charge forexceptionalcases,suchasconcretingunder

water, where vibrators cannot be used. Sufficient vibrators in serviceableconditionshallbekept at

site sothatspareequipment is always availablein the event ofbreakdowns. Concrete shall be

judged to be compacted when the motarfills thespacesbetween the coarse aggregate and

beginsto creamup toform an even surface. Compactionshallbe completedbefore theinitial

setting stars i.e. within 30minutes ofaddition ofwatertodry mixture. During compaction, it

shall be observed that needle vibrators arenot

appliedonreinforcementwhichislikelytodestroythebondbetweenconcreteandreinforcement.

Immediately after compaction,concreteshallbeprotectedfromweather, includingrain, runningwater,

shocks, vibration, traffic, rapid temperaturechanges, frost and drying out process.

Itshallbecoveredwithwet sackinghassian orother similarabsorbent materialapproved,

soonaftertheinitial set, andshall bekept continuously wet for a period of not less than14

daysfromthedateof placement. Masonry workover foundationconcrete maybe started after

hours ofitslayingbutcuringofconcreteshallbecontinuedforaminimumperiodof14days.

Samplingandtestingofconcrete

Samplesfrom fresh concrete shall be taken as per I.S. 1199-1959 and cubesshall

bemade,curedandtestedat7daysof28daysasperrequirementsinaccordancewithI.S.516-

1959.Arandomsamplingtestedi.e.thesamplingshouldbespreadovertheentireperiodofconcretingthec

overallmixingunits.

Theminimumfrequencyofsamplingofconcreteofeachgradeshallbeinaccordancewithfollowing:

Quantityofconcreteint Quantity of No.

hework No. concreteintheworks. of

ofSample samples.

1-5cmt. 1 16-30cmt.

6-15cmt. 2 31-50cmt.

51andabove 4□oneadditionalforeachadditional50m.orpart

NOTE: Atleastone sampleshall be taken from each shift. Ten test specimens shall

bemadefromeachoneachdayoftheconcretingasperabovefrequency.Thenumberofspecimensmaybes

uitablyincreased asseemed necessaryby the engineer-in charge when procedure

oftestsgivenaboverevealsapoorqualityofconcreteandinotherspecialcases.

The averagestrength ofthe group of cubes cast foreach dayshall notbe lessthan

thespecifiedcubestrengthof150kg/Cm2at28days.20%ofthecubescastforeachdaymayhavevalurlesst

hanthe specified strengthprovidedthelowestvaluris notless 85% ofthespecified strength. If the

concrete made in accordancewith theproportions givenfor aparticulargradedoesnotyield the

specified strength, such concreteshall be classified asbelongingtothe appropriatelower grade.

Concrete made in accordance with the

proportionsgivenforaparticulargradeshallnot,however,beplacedinahighergradeonthegroundthatthet

eststrengtharehigherthentheminimumspecified.

TheEngineer-in-charge shallbe informedin advancedby the contractor of his intentiontostrike

the formwork. Whilefixing thetime for removal of form work, due

considerationshallbegivento local

conditions,characterofthestructure,theweatherandotherconditionsthatinfluence thesettingof

concrete andof the materials usedinthemix.Innormalcircumstances(generally

wheretemperaturesareabove 20.C.) and where ordinaryconcrete is used,

formsmaybestunkafterexpiryofperiodsspecifiedinitemNo.9.1.(A)Forrespectiveitemofformwork.

Allformworkshallberemovedwithoutcausinganyshockorvibrationaswoulddamagetheconcrete.

Beforethesoftandstrutsareremoved,theconcretesurface shall be

graduallyexposed,wherenecessaryinordertoascertainthatconcretehassufficientlyhardened.

Centeringshall begradually and uniformly lowered insuch a manner as to permit the concreteto

take stresses dueto its

ownweightuniformlyandgradually.Whereinternalmetaltiesarepermitted,theyortheirremovablepartss

hallbeextractedwithoutcausinganydamagetotheconcreteandremaining, holes filled with mortar.

No permanently embedded metal part

shallhavelessthan25mm.Covertothefinishedconcretesurface.Whereitisintendedtore-use

theformwork,itshallbecleanedandmadegoodtothesatisfactionEngineer-incharge.Afterremovalof

formwork andshuttering, the Executive Engineer shallinspect the work

andsatisfybyrandomchecksthatconcreteproducedisofgoodquality.

Immediatelyaftertheremovalofforms,allexposed boltsetc, passingthrough

thecementconcretememberandusedforshutteringoranyother purpose shallbe cutinside the

cementconcretemembertoadepthofatleast25m.belowthesurfaceoftheconcrete

andtheresultingholesare filed by cementmortar. All finscausedbyformjoints, allcavities produced

by theremoval of form ties and all other holes and depressions, honeycomb spots,

broken edgesor corners and other defects, shall be thoroughly cleaned, saturated with

water andcarefullypointedandrendered true with mortar of cement and fine aggregate mixed

inproportionsusedin the grade of concrete that is beingfinishedandofasdryconsistencyasispossible

to use.Considerable pressure shallbeappliedinfillingandpointingtoensurethroughfilling in all

voids. Surfaces which are pointed shall bekept moist for a period of 24 hours.

Ifrockpockets/honey combsintheopinion of theEngineer-in-charge areofsuchan

extentorcharacterastoaffect the strength of the structure materially orto endangerthe lifeof

thesteelreinforcement, hemaydeclaretheconcretedefective.

Mode ofmeasurements&payment

Theconsolidatedcubicalcontents of concrete work asspecifiedinitemshallbemeasured.

Theconcretelaidinexcessofsectionsshownondrawingorasdirectedshallnotbemeasured.Nodeductionsh

(a) Endsof dis-simmilarmaterialssuchasjoints, beams,posts,girdes,rafters,

purlinetrusses,corbelsandstepsetc.upto500Sq.M.cminsection.

(b) Openingupto0.1Sq.M.

Therateincludes cost

ofallmaterialslabour,toolsandplantrequiredformixing,placinginpositionvibrationandcompacting,fi

nishing,asdirected,curingandallotherincidental

expensesforproducingconcreteofspecifiedstrength.Therateexcludesthecostofformwork.Therateshall

beforaunitofonecubicmeter.

FORCONCRETEWORKS:M-200ANDM-250GRADECONCRETE

Providingandlayinginpositionmachinebatchedandmachinemixedcontrolledcementconcre

te M- 200andcuringetc.complete,excludingthecostofform

workandreinforcementforreinforcedconcreteworkin

Except where they are variedby therequirements ofthisspecificationdue

provisionofIndianStandardSpecificationIS-456-

1964forplainandreinforcedconcreteandanyotherrelevant ISSapplicabletogetherwith the latest

amendments shall be held to

beincorporatedinthisspecification.Itsh

allbeintentofthespecificationstoensurethatallconcreteplacedatvariouslocationofthejobshouldbedur

able, strongenough tocarry thedesignloads,itshouldmixedwell andpractically be impervious

to water. It should befreefromsuchdefectsasshrinkage,crackingandhoneycombing.

ProportioningoftheMix

In ordinary concrete, excluding controlledconcrete, proportions of cement to

fineandcoarseaggregate shallbe asspecified inthe respective items and shallbe

accuratelymeasured asinTable 'A' below. These proportions arebased onassumption

thatthe aggregatesaredry.

IfaggregatesaremoistallowanceshallbemadeforbulkinginaccordancewithIS:2386.Allowanceshalla

lsobemadeforsurfacewaterpresentinaggregatewhen computing watercontent.

Surfacewaterpresentshallbedetermined by one of the field

fieldmethodsdescribedinIS:2386(PartIII).Intheabsenceofexactdata,theamountofsurfacewatermay

beestimatedfromthevaluesgiveninTable'B'below.

(a) Concreteof1:2:4orrichermixshallbemixedinanapprovedmechanicalmixer.Themixer and

mixing platform shall be suitably protected from windand rain. Aggregates

shallbeaccuratelymeasured outin boxesand mixed dry along with cement, water shall

thenbeaddedinmeasuredquantityandmixing shallbe continueduntil thereis auniform in

colourandconsistencybutinnocaseshallthemixingbedoneforlessthan2minutes.

(b) When hand mixingispermittedwiththeapprovaloftheEngineer-in-chargeit

shallbecarriedoutonawatertightmixingplatformandcareshallbetakentoensurethatmixingiscontinue

duntilthemassisuniformincolourandconsistency.

Quantity of water for making reinforced concrete shall be sufficient so as

toensure that concreteshall surround and properly grip all the

reinforcement.The bestconsistencyshallbethat,whichwillflowsluggishlywithout

flattening outandwithoutseparationofcoarseaggregatesfromthe

mortar.Thedegreeofplasticityshalldependonthenatureofworkandatmospheric

temperatureandwhether the concrete is vibratedorhandcompacted.

Theslumpsshownintable'C'obtainedbythestandardslumptestcarriedoutinaccordancewith

theprocedurelaiddowninIS: 119-1959 shallbeadoptedfordifferenttypesofwork.

Theuseofadmixturesmay be allowed only ifapproved by the

structuralconsultantandhisdecisioninthisregardshallbefinal.

Concrete shallbe conveyedfrom theplace ofmixing to the place of final deposit as rapidlyas

practicable by methods whichwill prevent segregation or lossofanyof the

ingredients.Ifsegregation does occur during transport, the concrete shall be remixed before

being place.In no case, more than 30 minutesshall elapse between mixing and consolidation

Placing&Compacting

(a) Concreteshallbeplacedin layersof suitablethickness orin stripsand

compactedbeforeinitialsettingcommencesandshouldnotbesubsequentlydisturbed.Methodofplacing

shall besuchastopreclude segregationand asfar as practicable the placingshall becontinuous.

Special care shallbe takenin accordancewith IS : 456 whilelaying

concreteunderextremeweather.

(b) Concreteshallbethoroughlycompactedduringtheoperationof

placingandthoroughlyworked aroundthe reinforcement, embeddedfixtures and spaded

againstcorners of the form work and bypunning, rodding, mechanically vibrating orby

anyotherapproved means. In additionform workshall betapped lightlyby

usingwoodenmalletatthepouringhead. Thenumberand typeof vibratorto be used shall

besubjectto theapproval of Engineer-in- charge and in general immersion type vibrators

shallbeused.Externalvibratorsshallalsobeusedwheneverdirected.

(c) Theintensityandduration of vibration shall be sufficient to causecompletesettlement

and compactionwithoutanystratificationofsuccessivelayersorseparationofingredientsor

formationof laitance. Vibrator shallbe inserted vertically in the concrete

atpointsnotmorethan45cm.Apartandwithdrawnveryslowlywhenairbubblesnolongercomeon

the surface. Over vibration or vibrationof verywet mixesis harmfuland

shouldbeavoided.Careshallbetakentoutilizethevibratoronlytocompacttheconcreteandnotto

spread it. Sufficient number of reservevibrators in good working condition shall be

keptonhandatalltimes,soasto ensurethat thereis no slackening or interruption incompacting.

(d) Dimensionofcolumn,beams,slab,footingshallexactlyasperdrawing,however,inspecialcircu

mstancestoleranceindimensionshallbeallowableasunder:

(1) Variationfromlevelorspecifiedgradesforslab

(2) Variationincrosssectionaldiameterofcolumns/beams/slabs.wallsinsimilar.Minus6m

(3) Variationinsizesandlocationfromthosespecifiedforslabandwallopening12mm.(4)

(i)VariationofDimensioninPlanminus12mmplus50mm.(ii)Misplacement:2%butnotmorethan50m

(iii)Reductioninthickness:5%ofspecifiedthickness.

Constructionjoints

(a) Concreting shall be carried out end to end continuously as far as possible andwhen

constructionjoints aretotally unavoidable, it shall be located in a predeterminedposition

approvedby the Engineer in charge. The jointsshall bekept at places where theshear forceis

theminimum andthese shallbe straight and at right angles to thedirectionof main

reinforcement. When thework hasto beresumed, ona surface which

hashardened,suchsurfaceshallbe roughened. It shall be swept clean, thoroughlywetted

andcoveredwitha13mm.Thicklayerofmortarcomposedofcementand sand

inthesameratioasthecementandsand intheconcretemix. This13mm.Layerofmortar

shallbefreshlymixedandplacedimmediatelybeforetheplacingofconcrete.

(b) Where theconcrete hasnot fullyhardened, alllaitance shallbe removedbyscrubbing the

wet surface withwire orbristle brushes, care being taken toavoiddislodgment of particles of

aggregate. The surfaceshall thenbe coatedwith neatcementgrout.Inhorizontaljoints the first

layer of concrete to be placed on this surface shall notexceed15cm.Thicknessand shall be well

rammed against old work, particular attention beingpaidtocorners.

Expansionjointshallbeprovidedwhererequiredasshownon

thedrawingsorasdirectedbytheEngineerincharge/Consultant.Thejointsshallbefilledwithapprov

edqualityfiller.

Concrete shall be carefully protected during first stage of hardening from harmful

effectsofexcessiveheat, dryingwinds,rainorrunningwater.Itshallbe coveredwith alayer

ofsacking,sand,canvas,hesian,or similar absorbentmaterials andkept constantlywet

fortendaysfromthedateof placing of concrete. Alternatively, the concrete being

thoroughlywettedandcoveredbylayerofapprovedwaterproofmaterialwhichshouldbekeptincontactw

ithitforsevendays.

a) The formwork shall conform to theshape, lines and dimensions as shownon

theplansand beso constructed as to remain sufficiently rigid during the placing

andcompactingoftheconcreteandshallbesufficientlywatertightto prevent loss of cementslurry from

the concrete. Form workor centering shall be constructedof steelor

timberandadequatelydesignedtosupportthefullweightofwetconcretewithoutdeflectionand

retainitsfromduringlaying,rammingandsettingofconcrete.Timber used shall

beproperlyseasonedsoastopreventdeformationwhenwetted.

b) All propsshallbe straightand offull heightand nojoints shallbe allowed.Propsshallbe braced

with thin bamboos or wooden battens andwhere additional staging

isnecessary,extracareshallbetakentousebiggerdiameterpropswithbracingat4or5levels.Allprops

shallbe supportedon soleplates and double wedges. At thetime

ofremovingpropsthesewedgesshallbegentlyeasedandnotknockedout.

c) Allrubbish,chipping,shavingsandsawdustshall be removed fromtheinteriorof the forms

before theconcreteisplacedand the form work in contactwith

theconcreteshallbemineraloiloranyotherapprovedmaterial.Careshallbe taken that oil or

suchapprovedmaterialiskeptputofcontactwiththereinforcement.

d) All formwork shallberemovedwithout shockor vibrationand shallbe easedoffcarefully in

ordertoallow thestructure to take up itsload gradually. Forms shallnot bedisturbeduntilconcrete

has adequatelyhardened to take up super-imposed load comingonitaninno circumstancesshall

formsbe struckuntil the concrete reached astrength

ofatleasttwicethestresstowhichtheconcretemaybesubjectedatthetimeofstriking.

e) In the normal circumstances (generally where temperatures are above 21degrees

centigrade) andwhere ordinary cement is used,formsmaybestruck after expiry

offollowingperiods:-

(a) Walls,columnsandverticalsidesofbeam :48HoursasmaybedirectedbytheEngineerin

(b) BottomofSlabUpto4.50Mtspan:7Days.

(c) BottomofSlababove4.50Mt.Span:14Days.

(d) BottomofBeamsandarchribover6.00MeterSpan:21Days.

However this period may be increased or decreased at the discretion of Engineer-in-

charge.Specialcareshallbetakenwhilestrikingthecenteringofcantileveredslabcanopies,portalframes

,foldedplateconstruction and period of striking centering shall be asdeterminatebytheEngineer-

Ifdirected,formsshall begiven anupwardcambertoensurethatthebeamsdonothave any

Surfacethatbecomesexposedonremovalofformsshall be

carefullyexaminedanyfins,burrs,projections etc.That aredetected shallbe removed. Any

honeycombing of minornatureshallbefinishedneatlywithcementmortar1:2.

Anyworkshowingsignsofdamagethroughprematureorcarelessremovalofcenteringorshutteringorshutte

ring,shallbereconstructedbytheContractorathisowncost.

Concrete mixedintheproportiondesiredshallhavecompressivestrength afterlacing,

notlessthanthefollowing:-

Sr. ConcreteMix MinimumComp MinimumCompressi

Strength 7 Strength28days

sq.cm(2250lbs sq.cm(3500lbs./sq

20) sq.cm(1875lbs 0lbs./sqcm

sq.cm(1500lbs sq.cm(2100lbs./sq

(b) TestsonconcreteshallbecarriedoutinaccordancewithIS-

456andanyotherISapplicable.

The frequency of works test shall be at such intervals as ordered by the Engineer-in-

charge and subject to that every 150cu.m of concrete placedor partthereof andfor

aday'sconcreteexceeding 20cu.ma batchof6 cubesshall bemade for every sample and 3ofthem

testedafter 7 daysandtheremaining 3cubesshallbeshallbe testedafter 28 days.

Thecriteriaforacceptance ofconcrete asconforming to the specified proportion/grade

ofconcrete shall be in accordance with IS:456 and the contractor shall entirely re-do

therejected work at hisowncost. Strength or 28daysshallalonebeconsideredfor acceptance.

TheContractor shallarrange tocarry outthe tests in accordance withthe

relevantIndianstandards specifications in any approved Laboratory and the testreports in

OriginalsubmittedtoEngineer-in-charge.TheentirecostoftestingshallbebornebytheContractor.

DetailsofaggregatesandwaterrequiredindifferentconcreteMixes,surfacewaterinsand,and

slumprequiredisgiveninTableA,TableBandTableCasunder:

S. NominalMix Qty. Qty.

N ofag ofwaterrequiredper

o. gregates 50Kgs.ofcement

FINE Coarse Vibrat Unvibr

cu.m cum (fordryaggregate0

S. Aggregates ApproximateQty

1 VeryWetsand 120lits.

2 ModeralyWetsand 80Lits.

3 Moistsand 40Lits.

4 MoistGravelsorcrushedsock 20-40Lits.

Coarsertheaggregate,lesserthewateritwillcarry.

S. Typeofwork SlumpRequired

Forconcretew Forunvibrate

1 MassconcreteonRCC 2.5Cms.(1”) 5Cms.(2”)

foundation,footings

2 Beams,Slabs,columnswithsi 2.5 5Cms–10

mplereinforcement to5Cms.(1”- Cms

3 ThinSections with 5Cms–10 10-15Cms.(

congested Cms 4” –6”)

Reinforcement (2”–4”)

Note:Should conditions governing slumps and workability

changedpointingtoadvisabilityofanincreasedslump,this

shallonlybedonebydecreasingtheamountofaggregateandnotonlybyincreasingthe

SpecificationsforControlledConcrete:

The following specificationsshallformpartofthecontractandtheseshallbe deemed tobe

supplemental to the specifications in the printed tender and not

inderogationthereofexcepttotheextentspecificallyprovidedherein.

AllconcreteshallcomplywiththerequirementsofIS:456.Whereverareferenceismadetoany

IndianStandard Codeof practiceit shall mean the latest versionof therelevantstandardinuse.

Concretework shall be supervised by a competent concrete

technologistapprovedbytheEngineer-In-

chargestructuralconsultantwhosedutywillbetosuperviseall

stages of designing the mix, preparation and placing of concrete. All cubes shallbe

madeandsitetestscarriedoutunderhisdirect.

SupervisioninthepresenceofEngineer-In-Charge/StructuralConsultantorhisauthorised

representatives.Inordertoexercisethe required degree of constant control over

theconcretematerialsand their preparations, the Contractor shall set up and maintain at

hisownexpense a testing laboratory at site.Heshallprovideallapparatusrequired for

sensitivetestingofconcreteandconcretematerialsandinparticularhemusthavethefollowingequip

ment intheSite Laboratory, if the adequatetestinglaboratoriesarenot available in

thenearbyareaofworksite.

Beforethecommencementofconstructionwork,theContractorshallsupplytotheEngineer

-In-Charge/StructuralConsultantarrangementforconcretingplant.

Allmaterialswhichhavebeendamaged,contaminatedorhavedeterioratedordonotcomplyina

nywaywiththerequirementsofthisspecifications berejected andshall

beremovedfromthesiteattheContractor'sownexpense

Materialsviz.,cement,fine aggregate, coarseaggregates, water etc. Shall

betested,ifdirected,inanapprovedtestinglaboratoryandtestreportsinoriginal,shallbeforwarde

dtoEngineer-in-chargeandallcoststestsshallbebornebytheContractor.

Ifdirected,testsshallberepeatedandcostsofsuchtestsshallbebornebytheContractor.

Theconcretemixshallbedesigned by any of therecognised methods.

Theproportionschosenshouldbesuchthattheconcreteisof adequateworkability for

theconditionsprevailingontheworkinquestionandcanbeproperlycompacted.

The maximum total quantity of aggregate by weight shall notexceed what is

shownin thetable given below in paragraph3.3 exceptwhere otherwisespecifically

permittedbytheEngineer-in-charge/Consultant.

Exceptwhereitcan be shown to thesatisfaction of the Engineer-in-

charge/Consultantthatsupplyofproperlygradedaggregateofuniformqualitycanbe maintained

over the periodof work, the grading of aggregateshould becontrolled byobtaining the coarse

aggregate in different sizes and blending themin

therightproportionsfor various mix designs, the different sizes being stocked inseparate

stockpiles. The materials should be stock piled preferably a daybefore use. The

gradingofcoarse, andfineaggregateshould be checked as frequently aspossible, thefrequency for

agivenjobbeingdeterminedbytheEngineer-in-charge/Consultanttoensurethatthe

suppliesaremaintainingtheuniformgrading withthat of the samples used in thepreliminarytests

Inproportioningconcrete,thequantityofbothcement and aggregate

shouldbedeterminedbyweight.Watershouldbeeithermeasuredbyvolumeincalibratedtanksorweigh

ed. All measuringequipmentshallbe maintainedin aclean serviceablecondition

andtheiraccuracyperiodicallychecked

Cement shall comply in every respect with the requirements of the IS.269 for Portland

cementandshallbeobtainedfromapprovedsources.

Cement shallbe storedin suitable weather-proof structureson raised wooden platform andin

stacks which are not higher than 10 bags. Sufficient space shall be provided for circulationand

rotation of bags inorder to minimize the length of storage of any of the bags.

Provisionsforstorageshallbeample andthe consignmentof cementas received shall be

separatelystored in sucha manner as to provide easyaccessfor the identification andinspection of

eachconsignment.Costofprovidingthesestructuresshallbebornebythecontractor.

Storedcementshallmeetthetestrequirementsatanytimeafterstoragewhenaretest

isorderedbytheEngineer-in-

charge/Consultant,Cementconcerningwhichthereisdoubtshallnotbeusedpendingtestingandsati

sfactoryresults.Allcementnotconformingtospecificationsand rejectedbytheEngineer-In-

Charge/Consultantshallberemovedimmediatelyfromthesiteof work.

Cementshallbeusedinthesequenceinwhichitarrivesinorderthatno cement

shallbeunnecessarilystoredforalongperiod.Ifcementbecomeshumpyduetopartialhydrationitshallbe

removedfromthesiteimmediately.

Admixturesshallbeallowedtoimproveworkabilityonlyifthereisprovedevidencethatneitherthe

strengthnor the other requisite qualitiesof concrete and/or steel, accessories,groutareimpaired

by their use. The use of admixtures containingCalcium Chloride,Fluorides,Nitrates and

Sulphates is prohibited. The Engineer-In-Charge decision on

allmattersrelatingtotheuseofadmixturesshallbefinal

Admixturesshallbestoredinasuitableweatherproofshed/building.Anymaterialwhich has

deteriorated or which hasbeen contaminated or damaged whether during transistor

atsiteshallbeimmediatelyremovedfromthesiteandreplacedatContractor'sownexpense.

FineAggregates:

ShallconformwiththerequirementsofIs:383andrelevant portion of IS: 515.It shall bechemically

inert, strong, hard, durable of Limited porosity, freefromadherent coatings, claylumps, coal and

coal residues, and shall not contain any organic matter of other admixturesthat may cause

corrosion of reinforcement or impair the strength or durability of the concrete.Themaximum

quantity of the deleterious materials shallnotexceedthelimits specified in

therelevantIndianStandardsSpecification.

The natural sand shall havegrading conformingto oneof thefour grading limits given

inthefollowingtable:-

GradingLimitforfineaggregates

Percentagepassing

sieveDesignat GradingZo Gradin Grading GradingZ

ion. ne1 g Zone31 one4

(whengradingfallsoutsidethelimitsofanyparticulargradingzoneofSieves,

other than 600Micron Sieve, by a total amount not exceeding 5%, it shallbe regarded

other than 600Micron Sieve, by a total amount not exceeding 5%, it shallbe regarded

asfallingwithinthegradingzone.)

CoarseAggregates

Coarse Aggregates shallconformwiththerequirementsofIS:383 and relevantportions

ofIS:515.Itshallconsistofhard,dense, durable, uncoated crushed rock. Use of

gravelAggregatesshallbefree from soft, friable, thin of

flakypieces.Itshallbefreefrominjuriousamountsofalkali or organic matter otherthan deleterious

materials. The maximumquantityof deleterious

materialsshallnotexceedthelimitsspecifiedintherelevantIndianStandardSpecifications.

Coarseaggregatesshallbeobtainedinsinglesizesconformingtothegradinggiveninthefollowingta

ble inrespect of eachnominalsize.Singlesizedaggregatesshallbe blended insuitable

proportions to obtain a desiredgrading of coarseaggregates.Atthediscretion of theEngineer-

In-Charge/Consultantuseofgradedaggregatesshallbeallowedprovidedthe

gradingconformstothelimitsspecifiedinthefollowingtableunderColumnB.

Sieve APercentagePassing,forsin BPercentagepassing

Designa glesized ,ofgraded

tion Aggregateofnominalsize Aggregateof

(a) For heavilyreinforcedconcretemembersasin the caseof ribs of mainbeams,henominal

maximum sizeof the aggregate shallusuallyberestricted to

mm.Lessthantheminimumcleardistance between the main bars or 5 mm less

thantheminimumcovertothereinforcementwhicheverissmaller.

(b) Where reinforcementid widelyspaced asin solid slabs, nominal maximum

sizeoftheaggregateshallbe20mm.

Forreinforcedconcretework,aggregateshavingamaximumsizeof20mm.Shallbeu

Inselectingcoarseaswellasfineaggregates,theContractorshallsatisfyhimselfthatthesourcesuitable

andadequateforregularsupplyandawatchshallbemaintainedthattheparticleshapeandgradingremai

nreasonably uniform throughouttheprogressof work. IfdirectionbyEngineer-in-charge/

Consultant,theaggregatesshallbewashed at Contractor'sexpense.

For bothfineandcoarseaggregates,

preliinarytestsshallbecarriedoutforphysicalcharacteristics,limits of deleterious

substances,soundness, etc. Prior to commencement

ofworkandalsowhenthesourceofsupplyischanged.

Water usedfor both mixingandcuringshallbefree from injurious amountsofdeleteriousmaterials.

Potablecontractor. Water containing any sugar or an excess of acid, alkali or

salt,shallnotbepermittedforuse.Waterwhichfailstosatisfythe

followingrequirementsshallnot beused.

(a) Toneutralise200ml.Sampleitshould notrequiremore than2 ml. Of

Toneutralize200ml.Sampleitshouldnotrequiremorethan10ml.Of1.0normalHCL

.(c) Percentageofsolidsshouldnotexceedthefollowing:

Organic Percent

Alkalieschloride

In case of doubt, the Engineer-In-Charge may requirethat concretemixed withwater

proposedtobeusedshould not have a compressive strength, lower than 9% of the strength of

concretemixedwithdistilledwater.

2.15.5 Reinforcement

All reinforcement shall conform with the requirements of relevant IS specifications for

mildsteel, deformed steel etc. All reinforcement when placedin positionshall beclean

andfreefromloosemild scales, dust, loose rustand coats of paints, oil or other coating while

maydestroyorreducebond.

Weldedjointsmaybeallowedonlywhentestsshall bemade to prove that the joints are of thefull

strength of the bars connected. Weldingof reinforcement shallbe donein

accordancewiththerecommendationsof relevantIndian Standards for welding of mild steel

bars usedinreinforcedcementconcrete.

2.15.7 ConcreteMixdesign

Concrete mix forvariousspecifieddesignstrengthsshallbeworkedoutby

theContractorbyanyoftherecognizedmethodofmix design. There

shall be one or twoor moremixdesigns for same

gradeofconcretefordifferentworkability as required for

differentstructuralmemberssuchasslabs,beams,columnsetc.

The selectedmixproportionshallensurethatworkabilityofthefreshconcreteis suitable for

conditions of handling andplacing,so that after compaction it surroundsallreinforcementducts

etc. And completelyfills theform work. When the concrete is hardened its quality shallbe such

as to comply with the strength, durability and other requirements taking into

accounttheconditionstowhichitwillbeexposed.

The preliminary mix design shall assumeonly faircontrol, unless the contractor

canprovefromhislastexperiencethatheiscapableofachievingahighdegreeofcontrol.Givedue regard

tothe criteria of acceptance for preliminary testas stipulatedin IS:456 (pleaseseetable I).

companion cubesshallconstituteatestandtheaveragestrengthof5 companioncubestested. shallnotbe

lessthan thestipulated strengthfor preliminary tests. The designmixandcontrolshallbeaccepted

if onlyoneout of five cubesmaygive a valuelessthanthespecifiedstrength(Ref. Cl. 5.2.2.1 and5.4.2

of IS 456- 1964). The contractor shall preparewell inadvance allcalculations,tabulations, graphs

pertaining to concrete mixdesign and preliminary

test results and submit the copies to Engineer-in-

charge/Consultant for theirinstructions.(PleaseseetableII).Onlythatmixwhichisapproved

in writing by the Engineer-in-charge clearly understood that such approval

shallnotabsolvethecontractorofhisresponsibilityforcomplianceofworkstestresults.

Theminimumcementcontentforvariousmixesaswellas the maximum aggregate

tocementratioshallbeasunder:-

Max. Mix CementContentConcrete

M150 280Kgs.perCmt.(800kgs./100

7.0 M200 320Kgs.perCmt.(900kgs./

M250 350Kgs.per Cmt. (1000

5.0 M300 390Kgs.perCmt.(1100kgs./

M350 425Kgs.perCmt.(1200kgs./100C

4.0 M400 460Kgs.perCmt.(1300kgs./

M450 495Kgs.per Cmt. (1400

Mixing&placingofConcreteMea

surementofMaterials:

Cement :Inproportioning concrete, the quantity ofboth cement and

all be determined by weight. Where the weight of cement is determined by accepting themaker’s

weight per bag, a number of bagsasdirected by the Engineer-In- Charge shallbe weighed separately

to checkte net weight. Where cement is weighed onthe site andnot in bagsitshallbeweighed

separately from the aggregate. Aggregate : Aggregates shall be batched

byweightinmechanicalweighbatcherorbatchingplantunlessotherwisespecified

intheScheduleofquantities.WhereVolumetricproportionsareallowed,withtheconsentoftheEngin

eer-in-charge ,theconversionfromweighttothatof volumeshall beon thebasis

ofdrybulkdensitiesoftheaggregates.

Water:Watershallbemeasuredeitherbyvolume(I)calibratedtanksorweighed,watershallnot

bemeasuredusingordinarybuckets,Measurementsofwatertocontrolandmaintainwatercementr

atioisofutmostimportanceandadequateattention shall be given by

thecontractortothesatisfactionoftheEngineer-in-charge/Consultant.

Allmeasuringequipmentshallbe of approved type and maintained

inserviceableconditionandtheiraccuracyperiodicallychecked.

Mixing:Concreteshallbemixedina mechanical mixer. Through mixing of concrete isessential

and mixer shall always be operated at the speed recommended by

themakers.ThewithIS:1791,butinnocasemixingshallbedoneforlessthan two minutes to ensurethat

the materials are uniformlydistribute and the mass is uniformin colourandconsistency.

Whenthemixingis over the entire contentsof thedrum shallbe

dischargedinoneoperationintoahopperora container to avoid segregation of mortarfrom

coarseaggregates.Iftheconcreteisallowedtobeunloadedonaplatform,itshallbewatertight.

Afterday'sworkthemixershallbethoroughlywashedandbladescleanedotherwisemixingdrumwillsoo

nbecomecallous with harden concrete which willimpair theefficiency

ofthemixer.Insideofthedrumshall be inspected regularly; any

bladeswhicharewornoutorbr

okenshouldbereplaced.

Transporting: Concrete shallbe handledfrom theplace ofmixing tothe placeof finaldepositas

rapidly as practicable by methods which will prevent the segregation or lossof any

of the ingredients. If segregationoccurs duringtransport the concrete shall beremixed before

beingplaced. Placing : Concrete shall be placed in position and

compactedbeforeinitialsettingcommencesandwhen once compacted it shall not

besubsequentlydisturbed.Methodofplacingshallbesuchastoprecludesegregation.

During hot or cold weather, concrete shall be transported in deep containers to reduce loss

ofwater by evaporation during hot weather and loss of heat during cold weather. Deep

containersarespecifiedonaccountoftheirlowerratioofsurfaceareatomass.

Concrete shall notbe dropped into position fromaheightgraterthan 2.0meters.

Before the concreteis actually placed in position, theinsides ofthe forms should

beinspectedtoensurethattheshutteringiswater-

tightandthesurfacetreatedwithapprovedcomposition.Alldebris,sand,dustetc.,shallberemovedfroms

hutteringbeforeconcreteisplacedinposition.

Concreteshallbeplacedinsuitablelayersdependinguponthenatureofworkandinnocaseshallbemoreth

an30cm.Thick,placingshallbeconfineryasfaraspracticable.

Whenconcreteisrequired tobe placedunder adverse conditions viz. Extreme weatherconditions,

under water, in alkali soils and in alkaline water, the requirements as

stipulatedinIS:456shallbecompleted.

Concreteshallbethoroughly compacted

duringtheoperationofplacingandthoroughlyworkedaroundthereinforcement, around

embedded fixtures and intocorners ofand bylighttappingthe form work

ontheexternalfaceattheactual pouring

headandthisshallbefollowedbymechanicalvibrationbyusingapprovedtypeofvibrator.

Beamsand columnsshall bevibrated usingimmersion vibratorsas per IS:

andIS:3558;thin sections likewater tanks wallsshallbe vibrated usingclampon

vibratedandshallvibratedusing surface vibrators. Thecontractorshallatalltimeshavein

reservesufficientvibratorsofeachtypetoguardagainstshutdownoftheworkoccasionedbythefailu

reoftheequipment.Noconcretingshallbepermittedintheeventofpowerfailure.

The intensity andduration ofvibration shall be sufficient to ensure

completesettlementandcompactionwithoutanystratificationofsuccessive

layersorseparationofingredientsor formationof lenience. Immersion vibratorsshall beinserted

vertically and notatany angleat regular intervals not morethan 45 cm. Apart andwithdrawn

veryslowlywhenairbubblesnolongercomeonthesurface.Itisbettertovibrateatsmallerintervalsfor

shooterperiodsof time. To avoidtrapping of airthe thickness

oflayerofconcretetobevibratedshallnotbelessthan 15cm. Andmaximum advisable shall be

cm. The vibratorusedtopushconcrete laterally in theforms of and itshall neverbe used nearer

than 10 cm.Totheformsurfaceinordertoobtainauniformappearance.

Concrete shall becarefullyprotected duringfirststageof hardening from

harmfuleffects of excessive heat, dryingwinds, runningdown of surface water

andshocks.Concrete shall be prevented fromdrying outat leastfor aperiod of14 Daysand

thereafterthe surface kept moist for another 7 day. The methodof curing shall be

thathorizontalsurfacesshallbekept covered with ponded water for a continuousperiod of14

daysandverticalsurfaceslikecolumns,finsetc.Shallbecoveredwithstraw,hessianetc.Andkeptconstantl

y wetby water spray. More sprinkling ofwater onvertical surfacesshall notbeallowed.

Testing andacceptanceofconcrete

MethodofsamplingandtestingshallbecarriedoutasperIS : 1199andIS :

516andevaluationoftestresultsshallbeasperIS:456ingeneralandclause5.4hereafterionparticular

Testsshallbeconducted oncompanioncubesor specimen.

Companionspecimensshallbecastfromasinglebatchofconcreteandshallbeofthesameageat

the time of testing..The averagestrength ofthree companionspecimens shallconstitute theresult

of that test. From each sample of concrete 6 companion cubes shall be taken.

Threeoftheseshallbetestedat7daysandtheremaining3at28days.

A minimumoftwosuchsamples giving12 cubesshall be obtained per mixper dayor forevery

cu.m. or fractionthereof for each grade whichever gives more number of

cubes.Allthesecubesshallbetestedinthesitelaboratoryoranyrecognizedlaboratory.TheEngineer-in-

charge/Consultantmayathisabsolutediscretionincreaseordecreasethe

frequencyoftests.

Thecriteria foracceptance ofa concreteshall bein accordancewith the latest version of IS

:456andtheconsequenceofrejectionshallbeat the expenseofcontractors.

Strengthof28daysshallbeconsideredforacceptance.

Strengthrequirementofconcrete(AllvaluesareinKgs./Cm2)

CompressiveStrengthof15.c.m.Cubesatdaysaftermixing,conductedinaccordan

GradeofConcrete PreliminaryTest WorkTestMin.

Mode ofmeasurementandpayment:

Therateshallbeforaunitofonecubicmeter.

Providing and fixing M.S.grill, gate,stair / balcony railing , elevation element of required

patterninframesofwindows

etc.withM.S.flats,squareorroundbarsetc.includingprimingcoatwithapprovedsteelprimerallcompl

Applyingprimingcoatovernewsteelandothermetelsurfaceafterandincludingpreparingthesurfaceb

ythroughlycleaning,oil,grease,dirtandotherforeignmatterandscouredwithbrushesfinesteelwood,s

crapersandsand paperwithreadymixedprimingpaintbrushingredlead.

Paintingtwocoats(excluding

primingcoat)onnewsteelandothermetalsurfacewithenamelpaint,brushing,interiortogiveanevensh

adeincludingcleaningthesurfaceanevenshadeincludingcleaningthesurfaceofalldirt,dustandotherf

AllstructuralsteelworkshallconformtocodeofpracticeforuseofstructuralsteelinGeneralBuildingc

onstructionI.S.800–1962

Materials: Thestructuralsteelworkshallconform toM-22.Redleadpaint

primershallconformtoI.S.:102-1962.

Thesteel sections asspecifiedorrequiredshallbecut, square andto correctlengths,

asperdrawingsanddesign.The cut ends exposedto viewshall befinished smooth. No two

piecesshallbeweldedorotherwisejointed to makeup therequired lengthof member,

exceptasindicatedinthedrawingsorasdirected.Allstraighteningandshapingtoformshallbedonebyappli

cationofpressureandnotby hammering. Any bendingor cuttingshall becarried outinsucha

meaner asnot to impair the strength ofthe metal. All operations shall be donein

coldstateunlessotherwisedirected/permitted.Steelrivetedorboltedinbuiltupsections,frame

Thesteelstructure as shown in the drawings or as per direction of the Engineer-in-charge

shallbe laid out onelevel platformto full scale and to fullsize orin parts. A steel

tapeshallbeusedformeasurementstoensuremaximumaccuracy.

Wooden templates12 mm to 19 mm thick or metal sheet template shall bemade

tocorrespondtoeach

connecting gussets plate andrivetholesshallbeaccuratelymarkedonthem and drilled.

Thetemplateshallbelaidon the steel members, andholes of the steel members shall alsobe

markedforcutting.ThebaseofsteelcolumnsandthepositionofAnchorboltsshallbecarefullysetout.

Allstiffenersshallbeformedbypressureandwherepracticable,themetalshallnotbecutandwelded

in making these. In majorworks orwhere sospecified shopdrawings

givingcompletedetailsandinformationforthefabricationofthecomponentpartsof thestructure,

includinglocationtypesize,lengthanddetailsofrivets,bolts,orweldshallbepreparedinadvanceoftheactu

al fabrication andasapproved. The drawingsshall indicatethe shopand fieldrivets

andbolts.Thesteelmembershallbedistinctlymarkedorstenciledwithpaintwiththe

identification mark asgivenin the shop drawings. The barsshall be thickened at the ends,

soastoprovideforscrewedthreadsandgraduallytaperedofftomeettheirnormalsection.

Greataccuracyshallbeobservedinfabricationofvarious member, so thatthese canbeassembled

withoutbeing undulypacked, strainedor forced into position and when built

up,shallbetrueandfreeformtwist,bniks,buckles,oropenjoints.Beforemakingholesindividualmember

sfor fabrication, the steel work intended to be riveted or bolted together shall

beassembledorclampedproperlyandtightlysoastoensurecloseabuttingorlappingofthe

different members. All stiffeners shallbear tightlyboth at top and bottom without being

drawnorcaulked.Theabuttingjointsshallbecut or dressed trueandstraight and fitted close

together.Webspliceplatesandfilters under stiffeners shallbe cut to fit within 3 mm or

flangeangles,webplatesofgirdersshallhavenotcoverplates,shallhavetheirendsflush

withthetopofanglesformingtheflangesunlessotherwiserequired.Thewebplateswhenspicedshallhave

clearanceofmorethan6mm.

Theerection, clearancefor cleared ends of members connectingsteel to steel shall

preferablybenotgreater than 1.5 mm.The erection clearance at theends of beams without web

cleatsshalltobemore that 3 mm at eachendbut where for a practical

reasongreaterclearanceisnecessary,suitablydesignedseatingshallbeprovided.

Pinsandrollersshallbeaccuratelyturnedtogauge.Theseshallbestraightand smoothand

free from flows.Theroller bearing shallbeprovidedwithadequatearrangementforholdingthegirders

or trussrestingonit. Incolumnscapsand bases, the ends of shafts together

withtheattachedgussetsangles,channelsetc.,afterrivetingtogethershallbeaccuratelymechanized

so thatthe parts connected butt againsteach other over the entire surfaces of

contractconnectinganglesorchannelsshallbefabricatedand placed in

positionwithgreateraccuracysothattheyarenotundulyreducedinthicknessbymachining.

Theendsof bearing stiffeners shallbemachanisedorground to fit tightly bothatthetopandbottom.

All holesshallgenerallybedrilled to the required sizeandat the required sizeandatrequired

position. Sub punchingshall be permitted, provided it is done 3 mm orless

indiameterandremadethereaftertotherequiredsize. The holesfor rivets and bolts shall

belargerby0.4to6mmthanthenominaldiameterofrivetsorblackboltsdependinguponthediameterofri

Holesshall have their axis perpendicular to the surface bored through. The

drillingorreameringshallbefreeform butts, andtheholes shouldbe cleanand accurate. Holes

forcountershunkboltsshallbemadeinsuchamannerthat theirheads fitflush with the

surfaceafterfixing.

Thefabrication work shallbecompleted in workshop as faras it is practicable to do so.

Sitejointsshallbedonewithrivetsandfitted bolts orblackbolts, asshowninthe drawings

orasdirected. Generally the following principles shall govern the use of rivets turned

andfittedbolts,andblackbolts.

(i) Rivetsandturnedandfittedboltsshallbeusedwheretheconnectionissuchthatslipunderloadhas

(ii) Blackboltsmaybeusedverysparinglywhereaforceiscarriedthroughaconnectionwithout

impact,vibrationorreversalofstresses.

Riveting:Thepartsassembledforrivetingshallbeinclosecontact with each other

andthebearingstiffenersshallbeartightlybothattopandbottomwithoutbeingdrawn

orcaulked.Memberstoberivetedshall beproperly pinnedor boltedand rigidlyheld

togetherwhileriveting.Driftingofholesshallnotbepermitted exceptto drawthe partstogether

andthedriftingtoolssousedshall have maximum diameternot exceedingthe nominal diameter

ofrivets or bolts. Drifting doneduring assemblingshall notdistort the metal or

enlargetheholes.

Theshanks of rivets shallprojectbeyondtheplatesurface sufficiently soasto fill

theHolethoroughlyandfromtherequiredheadafterriveting.

The rivetingshall be done by hydraulicor pneumatic process. Howeverwhere

suchfacilitiesarenotavailable, handrivetingmaybe permitted. The rivet shall be heated red -hot,

care beingtaken to controlthetemperature ofheating soas notto burnthe steel. Riveting

ofdiameterlessthan 10mm maybe fitted cold. Rivets shall be of heat finish with heads full and of

equalsize.Allloose,burnt or

badlyformedrivetswithconcentricordeficientheadsshallbecutoutandreplaced.Theheadsofrivetsshal

lbecentral to shanks and shall grip the assembled membersfirmly. In cutting out rivets, care

shallbetakensoas notbe injure the assembled,

members,caulkingorrecoupingshallnotbepermitted.

For testingrivets, hammerweighing approximately 0.25kg. shallbeusedof the rivets

shallbetapped,slackrivetswillgiveahollowsoundandajar.

Allrivetheadsshallbepaintedwithredleadpaintwithinaweekoftheirfixing.

Boltingallboltheadsand nutsshall behexagonal andof equalsize unless

specifiedotherwise.ThescrewedheadsshallconformtoI.S.:1363:1960andthethreadedsurfaceshallno

Theboltsshallbeofsuchlengthsoastoprojecttwoclearthreadsthenuts,whenfixedinpositionand

these shallfit in the holeswithoutanyshakes.The nut shallbe fit in the threaded

endsofboltsproperly.Whereturnedandfittedboltsarerequiredtobeusedinplaceofrivetstheyshall

beprovidedwith washers not less that6 mm thick so that the nut when tightened shall

notbearontheunthreadedbodyof the bolt. Taperedwashersshallbeprovidedforall headsand

nutsbearingon leveled surfaces. The threaded portion of the boltsshall notbe withinthe

thicknessofthepartsbolted together. The facesof the bolt and nutsabutting against steel members

shallbemachinefinished.Wherethereisariskofthenutbeingremovedorbecominglooseduetovibrations

orreversalofstresses, theseshallbesecuredfrom slackening bytheuse

oflocknuts,springwashers,crosscuttingorhammeringdownofthreadsasdirected.

Bolts, nuts and washersshall bethoroughly cleanedand dipped in double boiled

linseedoilbeforeuse.Thewhole steelwork shall be painted with a coat of priming coat of red

lead,asperrelevantspecificationsofpainting.

Mode ofmeasurementandpayment:

Thesteelworkshallbemeasuredingeneralasunder.

(a) Allworkshallbemeasuredonthebasisoffinisheddimensionsasfixedatsiteandmeasurednet

unlessspecifiedotherwise.

(b) Theweightofsteel sections, steel stripsinfinished workshall becalculated

fromstandardweighton the same basis on which steel is suppliedto the contractor by

departmentorthosegiveninrelevantI.S.ifsteelisarrangedbythecontractor.

(c) TheweightofsteelplatesandstripsshallbetakenfromrelevantI.S.basedon7.85kg/sq.

meterforeverymillimetersheetthicknessifsteelissupplied by the contractor, otherwisetheweight

shallbe calculatedon thebasis onwhich steelis supplied to the contractor bydepartment.

(d) Unlessotherwisespecifiedweightofclearest,brackets,packingpieces,bolts,nuts,washerS

distancepieces,separators,diaphragm gusset (taking overall squaredimensions)

fishplatesetc.shallbeaddedtotheweightofrespectiveitems.

(e) In rivetedwork allowance to bemadeof weight of rivet hands.No deductions

shallbemadeforrivetorboltholesexcludingholesforanchororholdingdownbolts.

(f) Forforgedsteelandsteelcastingweightshallbecalculatedonthebasisof850kg/cum.

(g) Unlessotherwisespecifiedanadditionalof2.5percentoftheweightofstructureshallbemadefors

hopandsiterivetheadsinrivetedsteelstructure.

(h) Unlessotherwisespecifiednoallowanceshallbemadefortheweldmetalincaseofweldedsteels

(i) Dimensions otherthancross sections andthicknessofplatesshallbemeasuredtonearest

(j) Milltoleranceshallbeignoredwhenweightisdeterminedbycalculation.

Therateincludescostofallmaterial,labour,erection,hoisting, scaffoldingprotectivemeasure,

requiredforpropercompletionoftheitemofwork.

Thisshallalsoincludedconveyanceanddeliveryhandling,loading,unloadingandstoringetc.requir

edforcompletingtheitemdescribedaboveincludingnecessarywastageinvolved.

ModeofMeasurement&Payment:TheitemshallbepaidinKilograms

Theactual piece(unpainted) shallbetakenfor weighing andthesamepiece

theoreticalweightshallbedone.Whicheverislesser,shallbepaid.

I HAVE ALSO GONE THROUGH TECHNICAL SPECIFICATIONS FOR THE ITEMS (AS PER STANDARD

P.W.D. TECHNICAL SPECIFICATION FOR THE ITEMS AND ALSO I HAVE THE BOOK OF THE SAME)

AND AGREE TO ABIDE BY THEM.

IN CASE OF WHERE IS NO TECHNICAL SPECIFICATION FOR THE ANY ITEMS AVAILABLE,

SPECIFICATION GIVEN BY THE ENGINEER-IN-CHARGE SHALL BE FOLLOWED AND FOR THE SAME

I AGREE TO ABIDE BY THEM.

Conctractor's Signature Additional City Engineer

Address & Mobile no. ( North Zone)

AHMEDABAD MUNICIPAL CORPORATION

FORM OF BID AND APPENDIX TO BID

FORM 1 - BID SECURITY (BANK GUARANTEE)

(Hereinafter called the Tenderer) is desirous and preferred to tender for works in accordance with the term and

conditions of tender for the work of WIRE FENCING WORK ON DIFFERENT AMC PLOTS ON

DIFFERENT TP ROAD IN NARODA WARD NORTH ZONE (ARC)

1. Therefore. We hereby affirm that -we are guarantors on behalf of the Tenderer up to total

rupees………………..(in words............................................) Rs. (in figures) and we undertake to pay to

Municipal Commissioner, Ahmedabad Municipal Corporation, A'bad. Specified tip to his first written

demand, without demur without delay and without the necessary of a previous of judicial or administrative

procedures and without the necessity of a previous of judicial or administrative procedures and without the

necessity to prove to the Bank the defects or short comings or debits of the contractor any sum within the limit

2. We further agree that the Guarantee herein contemned shall remain in full force and effect during the period

that would be taken for the acceptance of tender. However unless a demand of claim under this guarantee is

made on its in writing on or before the (Date to be specified will not be less than 180 days from the stipulated

date of receiving the tender) we shall be discharge from all liabilities under the guarantee thereafter

3. We undertake not to revoke the guarantee during it currency except with the previous

consent of the Municipal Commissioner, Ahmedabad Municipal Corporation, A' bad in

4. We lastly undertake not to revoke the guarantee for any charge in constitution of the

Tenderer or of the Bank.

Signature & Seal of Guarantor ...........................

5. The contractors shall have to furnish income tax clearance certificate before his tender is accepted and

intimate assessment number and ward under which he is assessed.

6. Copies of certificate as regards previous experience, if any, must accompany the tender.

7. List of approved banks - .Asper ANNEXURE –

Seal and Signature of the Bidder Addl. City Engineer (N.Z)

FORM -2 PERFORMANCE GUARANTEE BOND

(BANK GUARANTEE)

(Clause 37 of Section I Volume 1)

Awarded a contract dated_ __________________for FIXING GATES AT DIFFERENT PLOTS IN

WARD IN NORTH ZONE.(ARC)

.as specified in the tender by the Ahmedabad Municipal Corporation.

Whereas the said M/s __________________________________________has approached Us

___________________________________________Bank to provided a PERFORMANCE GUARANTES

BOND to the AMC for the work undertakes by M/s.

________________________ and Whereas. We, the _____________________________Bank have agreed to

provided such a PERFORMANCE GUARANTEE BOND. Now therefore, we the_

______________________Bank provided the following Performance Bank, Guarantee by way of these Bond

1. The contract value of the contract provided to M/s. _____________________by the AMC in Rs. _

__________. This guarantee in the nature of PERFORMANCE GUARANTEE is provided so as to ensure

and indemnify the AMC for full and proper performance of the contract by M/s.______________________

the _______________________________Bank hereby indemnify the AMC for all losses and / or damages to

the road surface which would be laid or resurface by M/s.________________________ and such

PERFORMACE GUARANTEE would include any damage to hot mixes, dense bituminous macadam asphalt,

concrete, seal coat, concrete blocks, road markings, signage, steel structures which may be suffered by the

AMC as a result of defective production of mixes, because of poor workmanship, or at all, by way of this

bond, we the _________________________________Bank agree and promises that in the eventuality of the

contractors M/s. __________________________________________not repairing or remeding the Problem,

loss or damage to the road surface we shall indemnify and pay the AMC such expenses, losses and damages

that may be incurred by the AMC, as a result of the AMC getting the work done itself or from the other

2. We _______________________________ Bank agree and understand that the decision as to whether any

losses or damages to the project have taken place or not and / or whether the work suffers from poor

workmanship or not will be taken by the Commissioner of AMC and on the Commissioner's decision

regarding such losses or damages or defect whatsoever being so notified by the AMC to us, We shall

immediately take steps and ensure that M/s.__________________________________ faithfully and

diligently carry out the necessary remedial steps to the full satisfaction of the Commissioner of the AMC. The

opinion of the Commissioner as to whether full and complete remedial steps, to the full satisfaction the

Commissioner of the AMC has been taken or not, will be that of the AMC. For the purpose, of arriving at

such decision as aforesaid it will be open to the Commissioner of the AMC in case he so desires, to delegate

this power to subordinate like the city Engineer to take appreciate decision and the decisions referred to above

will be deemed to be properly take and as if taken by the Commissioner of the AMC. In the eventually of

M/s.______________ not taking remedial action to the almost satisfaction of the Commissioner of

AMC. The AMC will be entitled to get the work done itself or from sources. On the Commissioner of the

AMC notifying to us the total expenses incurred for this purpose. We hereby expressly have under taken to

pay the AMC the said amount forth with and in any case not less than 7 days from taken to pay the AMC the

said binding the amount indicted by the Commissioner of the AMC and our obligation to pay such amount

will be continuing of the AMC and our obligation irrespective of any dispute of differences that may arise

between us and M/s. _____________________________ of between the AMC and M/s.

3. The contract value is Rs. __________________________. This PERFORMANCE GURANTEE is limited

to 5% of the said contract value and accordingly it comes to Rs. _______________________ our liability

will be in all cases be limited to Rs._________________.

4. We agree and undertake that this PERFORMANCE GURANTEE will be valid for a period of five years

and one month from the date when the contract work is completed by the

M/s._____________________________________. The Commissioner of the AMC notify such completion

that to us. In case, no such completion it is notified, this performance guarantee will be a valid from five years

from the date of execution of this agreement. The Performance Guarantee will come into effect from such

completion date. In case however, the contract of several parts it will be opened to the Commissioner to

indicate separate completion dates for separate part and to simultaneously indicate a break up of the contract

value equivalent to the separate part. In which case the PERFORMANCE GUARNATEE to extent of the

different completion dates. It is expressly understood that the considering this period of five years and one

month, the date by which the Corporation, intimate the Bank about the losses, damages or problems as the

case may be, shall be considered as long as such intimation is within a period of five years and one month

from the completion date. We the ___________________ Bank will be liable, irrespective of whether the

remedial actions or lack thereof has taken place after the period of the five years and one month.

5. We _________________________________ Bank agree that the PERFORMANCE GUARANTEE which

is continuing guarantee will be binding, and enforceable against us irrespective of any difference / disputes

between the AMC and M/s. __________________________of between us and

and irrespective of any change or variation or execution time or any forbearance or waiver made or grant by

6. In case any disputes arise as to the interpretation or implementation or implementation of this

PERFORMANCE GUARANTEE, the matter shall be referred to the sole arbitration of he Commissioner of

AMC whose decision in the matter will be final. In case any resource to any court of law is necessitated, the

appropriate Civil Court in the Ahmedabad along will have Jurisdiction.

Date: Signature of Contractor

FORM 3 - FORM OF AGREEMENT

THIS AGREEMENT made the ____ day of _______, 20__ between Ahmedabad Municipal Corporation

………………..(here in after called “the Employer”) of the one part and

in after called “the Contractor”) of the other part.

WHEREAS the Employer is desirous that certain works should be executed by the Contractor, viz.

____________________________________________ and has accepted the bid by the contractor for the

execution and completion of such works and the remedying of any defects therein at a contract price of

NOW THIS AGREEMENT WITNESSETH as follows:

1. In this Agreement, words and expressions shall have the same meanings as are respectively assigned to

them in the Conditions of Contract hereinafter referred to.

2. The following documents shall be deemed to form and be read and construed as part of

this Agreement, viz.:

a) the Letter of Acceptance;

b) the General Conditions

c) The Financial Condition

d) the Technical Specifications;

e) the Priced Bill of Quantities; and

f) other documents forming part of the contract.

3. In consideration of the payments to be made by the Employer to the Contractor as here in after mentioned,

the Contractor hereby covenants with the Employer to execute and complete the Works and remedy any

defects therein in conformity in all respects with the provisions of the Contract.

4. The Employer hereby covenants to pay the Contractor in consideration of the execution and completion of

the Works and the remedying of defects therein the Contract Price or such other sum as may become payable

under the provisions of the Contract at the times and in the manner prescribed by the Contract. IN WITNESS

whereof the parties hereto have caused this Agreement to be executed the day and year first before written.

Signed, sealed, and delivered by the said Employer and the Contractor in the presence

On behalf of Ahmedabad Municipal

On behalf of M/s.

Binding Signature of the Employer:

Binding Signature of the Contractor:

Sample Form for updating - qualification information

STATEMENT NO.-1

DETAILS OF COMPLETED / ONGOING LITIGATION / ARBITRATION

Year Name of Employer Value of the Reasons/Details for Remarks showing

Project Project (`) litigation/arbitration Present Status

(1) The bidder shall furnish separate table for individual project.

(2) The above information shall be supported with necessary documents otherwise the same shall be treat as null

(3) A consistent history of arbitration awards? Judgments against the applicants or any partner of a joint venture

may result in disqualification for proposed work.

(1) 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 Addl. City Engineer

Date: Ahmedabad Municipal Corporation

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Sr. Department Category Problem SLA Penalty

1 Engineering Water>>Engineering Inadequate water or low inflow 240

pressure - Eng Hours

2 Engineering Water>>Engineering Leakage In Pipe Line - Eng 48

3 Engineering Water>>Engineering Water quality-Polluted water - 24

4 Engineering Water>>Engineering No Water - Eng 240

5 Engineering Drainage>>Engineering Drain Blockage or Choking on 48

TP road - Eng Hours

6 Engineering Drainage>>Engineering Overflowing of main line and 48

distribution line on road - Eng Hours

7 Engineering Drainage>>Engineering No Drainage Manhole cover - 24

8 Engineering Drainage>>Engineering Frequent Breakdown & Blockage 96

of Drain - Eng Hours

9 Engineering Road Pot holes on the Road 24

10 Engineering Road Patch work Relaying of a portion 72

11 Engineering Road Deep Pit - Large settlement of 48

12 Engineering Road Removal of waste-Dust Lying on 72

both side of the road after re Hours

13 Engineering Footpath Footpath Repairing Required 168

14 Engineering Public Building No Water Supply InA Public 24

15 Engineering Public Building Public Toilets and Urinals - 360

Repairing of Doors, Windows, Hours

Tiles or Sheets

16 Engineering Public Building Other Maintenance 168

17 Engineering Drainage>>Engineering Contractor Had not disposed off 48

the Manhole Silt Properly - Eng Hours

18 Engineering Drainage>>Engineering Raising the Manhole Cover & 168

Catch Pit Up To the Road Level - Hours

19 Engineering Drainage>>Engineering Lowering the Manhole cover & 168

Catch pit - Eng Hours

20 Engineering Drainage>>Engineering Public Toilets and Urinals - 72

Drainage Line Blockage or Hours

21 Engineering Drainage>>Engineering Public Toilets and Urinals - 168

Drainage Line Breakage Hours

22 Engineering Water>>Engineering Public Toilets and Urinals - Non- 168

Availability of Water/Cleaning of Hours

Water Tank/Broken Tank Cover