CONSTRUCTING INTEGRATED SETTLER WITH ABR - 4 NOS

8 Section -7 Bill of Quantities

9 Section -8 Securities and Other Forms

10 Section -9 Drawings

11 Section -10 Documents to be furnished by Bidder

INVITATION FOR BID

NATIONAL COMPETITIVE BIDDING

1. The TALUKA DEVLOPMENT OFFICER, TALUKA PANCHAYAT DHOLKA invites bids

for the construction of works detailed in the table. The bidders may submit bids for

any or all of the following works.

Package Name of work Approximate Bid Cost of Period of #Class of

No. value of security documen completion Registration /

works (Rs.) (Rs.) t (Rs.) Category of

1 Integrated Settler with ABR 38,05,224/- 38,052/- 1500/- 4 months D and Above

For Grey Water Treatment

Plant at Various Villages

Under TALUKA PANCHAYAT

Milestone Dates for Tendering

1 Tender Downloading Date 25/08/2026, 12.00 am

2 Tender Online Submission Date 16/09/2026, 18.00 pm

3 Submission of Tender in Physical form at 16/09/2026, 18.00 pm

Swachh Bharat Mission, Taluka Panchayat

Dholka, Ahmedabad

4 Bid Opening Date 19/09/2026, 12.00 pm Onwards

6 Bid Validity 120 Days after opening of price bid

2. Prospective / Interested bidder may download the Bid Documents from website

https://www.nprocure.com free of cost till the Time and Date as mentioned on online

NIT at website https://www.nprocure.com.

3. However, Bidder who is submitting the Bid Online will have to pay the Bid Document Fee

/ Tender Fee through Demand Draft only of any Schedule Bank payable at

DHOLKA and in favour of “SBM-G TDO DHOLKA”. Once the Bid is received online, Bid

Document / Tender Fee will not be refundable.

The Demand Draft for Bid Document / Tender fee and FDR / Bank Guarantee against Bid

Security / EMD shall be submitted in electronic format through online (by scanning)

while uploading the bid, this submission shall mean that bid document / tender fee and Bid

Security / EMD has been received. Accordingly, the offer of only those shall be opened whose

Bid Document / Tender Fee and Bid Security / EMD have been received electronically.

However, for the purpose of realization of Demand Draft, and FDR / Bank Guarantee bidder

shall send the same in original through R.P.A.D. so as to reach to ‘SBM-G TDO DHOLKA’

for Tender Fee and “TALUKA DEVLOPMENT OFFICER DHOLKA” for EMD. within 7 the last day

of bid submission. Penaltative action for not submitting Demand Draft / FDR / Bank

Guarantee in original to ‘TALUKA DEVLOPMENT OFFICER, TALUKA PANCHAYAT

DHOLKA’. / Tender Inviting Authority by bidder shall be initiated.

4. Bids received online, will be opened on the time, date and place as specified in the online

NIT at website https://www.nprocure.com in the presence of the bidders or their

authorized representatives, who wish to remain present.

If the office happens to be closed on the day of opening of the bids as specified, the bids

will be opened on the next working day at the same time and venue.

5. #Bid Security (EMD) is equal to 1% of Estimated Amount put to bid / tender and should

be rounded off to the next thousand rupees.

6. Other Information is as under:

A. Agencies can prepare and edit their offers a number of times before the end of the

tender submission date and time. After the tender submission date and time, the

bidder cannot modify / edit / withdraw their submitted offer in any case. No written

or online request in this regard shall be granted.

B. Offers in physical form will not be accepted in any case.

C. Demand Draft purchased by the other then bidder and issued after the last date of

submission of Bids, will not be considered or accepted.

D. The cost incurred by the contractor for this offer for clarification or attending

discussion, conferences or site visits will not be reimbursed by the Employer or

Engineer-in-Charge.

E. Conditional tender shall not be accepted.

F. Any changes, addition, alternation made in the prescribed form attached with tender

are liable to be rejected.

G. Any change in format or conditional Bank Guarantee will not be accepted and the

bidder will be considered non-responsive.

H. All the bidders are instructed to fill in information strictly in accordance with the

format given in the checklist /qualification document / tender document.

I. It is mandatory for the bidders to supply each and every information as asked strictly

in electronic format at appropriate places only.

J. Blank / insufficient information shall be treated as nil information and shall result in

disqualification.

K. Even if the bidder has been qualified in a similar or larger size of project in the past,

it shall not be deemed to be a ground / reason for not giving required information for

this work / bid.

L. Information supplied for earlier projects shall not be considered while evaluation of

this bid. The Government will not ask for any other information, unless it is found

absolutely necessary by the competent authority.

M. If found necessary, the contractor will be intimated for negotiation,

# For the works costing up to 7.5 crore (ROAD), 7.0 crore (BUILDING & BRIDGE)

kindly refer to SSR-10-2015-17-C dated 03-02-2017

For the works costing under 7.5 crore for Road Works and 7.0 crore for Building and

Bridge Works following documents shall be submitted in electronic format only through

online by scanning and the (i) Bid Document Fee / Tender Fee (ii) Bid Security / EMD

should be sent in original to the Tender opening authority through RPAD, so as to reach

the Taluka Development Officer D H O L K A within 7 days from last day of submission

(i) Bid Document Fee / Tender Fee Demand Draft Favour of “SBM-G TDO

(ii) Bid Security / EMD in Form of FDR Favour of “ TALUKA DEVLOPMENT

OFFICER DHOLKA”

(iii) Registration Certificate of Appropriate GST Certificate

(iv) Bank Solvency of the Current Calendar Year i.e.

(vii) Government Registration Certificate of Approved Contractor

(viii) Average annual financial turnover of last 3 years should be at least

Rs.10,00,000/-. Bidder must enclose C.A. certificate along with Bid.

(ix) The bidder must have experience of Civil/Mechanical/fabrication/waste water

treatment plant work will be preferred. The 3A / completion certificates of

Government or Semi – Government Body or Private body for similar

nature of works showing actual work done amount and work completion

date shall be duly signed by concerned authority.

(x) Mandatory valid bank solvency certificate shall be of minimum Rs 2,00,000/- .

The solvency certificate of Nationalized Bank/ Schedule Bank shall only be

(xi) The bidder should finish the work order or completion certificate of similar work

(Water / Waste Water treatment plant etc.) along with the Tender.

All quoted rates must be inclusive of all types of taxes/cess/transport. Only GST will be

paid extra by TALUKA DEVLOPMENT OFFICER, TALUKA PANCHAYAT DH OLK A

on bidders quoted rates

(xii) The decision of TDO will be final and binding to the contractor in case of

INSTRUCTIONS TO BIDDERS

Section 1: Instructions to Bidders

Table of Clauses

Page No. Page No.

A. General D. Submission of Bids

1. Scope of Bid 10 19. Sealing & Marking of Bids

2. Source of Funds 10 20. Deadline for Submission of

3. Eligible Bidders 10 21. Late Bids

4. Qualification of the 10 22. Modification and

Bidder Withdrawal of Bids

5. One Bid per Bidder

6. Cost of Bidding 10 E. Bid Opening and Evaluation

7. Site Visit 11 23. Bid Opening

B. Bidding Documents 25. Clarification of Financial

8. Content of Bidding 12 26. Examination of Bids and

Documents Determination of

9. Clarification of Bidding 12 27. Correction of Errors

10. Amendment of Bidding 13 28. Deleted

29. Evaluation and Comparison

of Financial Bids

C. Preparation of Bids 30. Deleted

11. Language of Bid

12. Documents Comprising 14 F. Award of Contract

13. Bid Prices 14 31. Award Criteria

14. Currencies of Bid and 15 32. Employer’s Right to Accept

Payment any Bid and to Reject any

15. Bid Validity 15 33. Notification of Award and

Signing of Agreement

16. Bid Security 15 34. Performance Security

17. Alternative Proposals By 16 35. Advance Payment and

Bidders Security

18. Format and Signing of Bid 16 36. Dispute Review Expert

37. Correct or Fraudulent

1. Scope of Bid

1.1 The Employer (Named in Appendix to ITB) invites bids for the Construction of works

(as defined in these documents and referred to as ‘the works”) detailed in the table

given in IFB. The bidders may submit bids for any or all of the works detailed in the

table given in IFB.

1.2 The successful bidder will be expected to complete the works by the intended

completion date specified in the Contract data.

1.3 Throughout these bidding documents, the terms ‘bid’ and ‘tender’ and their

derivatives (bidder/ tenderer, bid / tender, bidding/ tendering, etc.) are

2. Source of Funds

2.1 The expenditure on this project will be met from the budget of Govt. of Gujarat /

Govt. of India for centrally sponsored projects.

3. Eligible Bidders

3.1 This Invitation for Bids is open to all eligible bidders.

3.2 All bidders shall provide in Section 2, Forms of Bid and Qualification Information, a

statement that the Bidder is neither associated, nor has been associated, directly or

indirectly, with the consultant or any other entity that has prepared the design,

specifications, and other documents for the Project or being proposed as Project

Manager for the Contract. A firm that has been engaged by the Employer to provide

consulting services for the preparation or supervision of the works, and any of its

affiliates, shall not be eligible to bid.

4. Qualification of the Bidder

4.1 All bidders shall provide in Section 2, Forms of Bid and Qualification Information, a

preliminary description of the proposed work method and schedule, including

drawings and charts, as necessary. The proposed methodology should include a

program of construction backed with equipment planning and deployment duly

supported with broad calculations and quality assurance procedures proposed to be

adopted justifying their capability of execution and completion of work as per

technical specifications, within stipulated period of completion.

5. One bid per bidder

5.1. Each bidder shall submit only one bid for one package. A bidder who submits or

participates in more than one bid (other than as a subcontractor or in cases of

alternatives that have been permitted or requested) will cause all the proposals with

the bidder’s participation to be disqualified.

6. Cost of Bidding

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

Bid, and the Employer will in no case be responsible and liable for those costs.

7.1 The Bidder, at the Bidder’s own responsibility and risk is encouraged to visit and

examine the Site of work and its surrounding and obtain all information that may be

necessary for preparing the Bid and entering into a contract for construction of the

The costs of visiting the site shall be at the Bidder’s own expense.

B. BIDDING DOCUMENTS

8. Content of Bidding Documents

8.1 The set of bidding documents comprises the documents listed below and addenda

issued in accordance with Clause 10:

Section Particulars Volume No.

- Invitation for Bids

1 Instructions to Bidders I

2 Qualification Information, and other forms

3 Conditions of Contract

4 Contract Data

5 Technical Specifications II

6 Form of Bid III

7 Bill of Quantities

8 Securities and other forms

10 Documents to be furnished by bidder V

8.2 Volumes I, II, III and IV are available online and documents to be furnished by the

bidder in compliance to section 2 will be prepared by him and furnished as Volume- V

in two parts (refer clause 12).

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

contract data, forms, terms, technical specifications, bill of quantities, forms, Annexes

and drawings in the Bid Document. Failure to comply with the requirements of Bid

Documents shall be at the bidder’s own risk. Pursuant to clause 26 hereof, bids

which are not substantially responsive to the requirements of the Bid Documents

shall be rejected.

9. Clarification Bidding Documents

9.1 A prospective bidder requiring any clarification of the bidding documents may

notify the Employer in writing or through E-mail at the Employer’s address

indicated in the invitation to bid. The Employer will respond to any request for

clarification which he received earlier than 15 days prior to the deadline for

submission of bids. Employer’s response will be published on website including a

description of the enquiry but without identifying its source.

9.2 Pre-bid meeting

9.2.1 The bidder or his official representative is invited to attend a pre-bid

meeting which will take place at the address, venue, time and date as

indicated in the appendix.

9.2.2 The purpose of the meeting will be to clarify issues and to answer questions on

any matter that may be raised at that stage.

9.2.3 The bidder shall be required to submit any questions in writing or e-mail to reach

the Employer not later than 03 days before the meeting.

9.2.4 Minutes of the meeting, including the question raised (Without identifying the

source of enquiry) and the responses given will be published without delay on the

tender website i.e. www.nprocure.com. Any modification of the bidding

documents listed in sub-Clause 8.1 which may become necessary as a result of the

pre-bid meeting shall be made by the Employer exclusively through the issue of an

Addendum pursuant to Clause 10 and not through the minutes of the pre-bid

9.2.5. Non-attendance at the pre-bid meeting will not be a cause for disqualification of a

10. Amendment of Bidding Documents

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

documents by issuing addenda.

10.2 Any addendum thus issued shall be part of the bidding documents. The Employer will

assume no responsibility for the same.

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

account in preparing their bids, the Employer may, at his discretion, extend as

necessary the deadline for submission of bids, in accordance with Sub-Clause

C. PREPARATION OF BIDS

11. Language of the Bid

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

12. Documents Comprising the Bid

12.1 The bid be submitted by the bidder as Volume V of the bid document (refer Clause

8.1) shall be in two separate parts:

Part I shall be named “Technical Bid” and shall comprise

(i) Bid Security in the form specified in Section

(ii) Qualification Information and supporting documents as specified in Section

(iii) Certificates, undertakings, affidavits as specified in Section

(iv) Any other information pursuant to Clause 4.5 of these instructions

(v) Undertaking that the bid shall remain valid for the period specified in Clause

Part II shall be named “Financial Bid” and shall comprise

(i) Form of Bid as specified in Section

(ii) Priced Bill of Quantities for items specified in Section

12.2 The Bidder shall submit the details / information pertaining to each part

i.e. technical as well as financial and must be submitted online only.

12.3 Following documents will be deemed to be part of the bid.

Section Particulars Volume No.

Invitation for Bids (IFB)

1 Instruction to Bidders Volume I

3 Conditions of Contract

4 Contract Data

5 Specifications Volume II

9 Drawings Volume IV

13.1 The Contract shall be for the whole works as described in Sub-Clause 1.1, based on

the priced Bill of Quantities submitted by the Bidder.

13.2 The bidder shall fill in rates and prices and line item total (both in figures and words) for

all items of the Works described in the Bill of Quantities along with total bid price

(Both in figures and words). Items for which no rate or price is entered by the bidder

will not be paid for by the Bill of Quantities.

13.3 All duties, taxes, and other levies except GST payable by the contractor under the

contract, or for any other cause shall be included in the rates, prices and total Bid

Price submitted by the Bidder. (GST will be paid extra)

13.5 The rates and prices quoted by the bidder are subject to adjustment during the

performance of the Contract in accordance with the provisions of Clause 47 of the

Condition of Contract (Irrespective of the time limit and Bid Amount)

14. Currencies of Bid and Payment

14.1 The unit rates and the prices quoted by the bidder shall be entirely in Indian Rupees.

All payments shall be made in Indian Rupees.

15. Bid Validity

15.1 Bids shall remain valid for a period of not less than 120 days after the deadline date

forbid submission specified in Clause

15.2 In exceptional circumstances, prior to expiry of the original time limit, the Employer

may request that the bidders may extend the period of validity for a specified period. 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 security for a period of the extension, and in compliance

with Clause 16 in all respects.

16. Bid Security

16.1 The Bidder shall furnish, as part of his Bid, a Bid security in the amount as shown in

column 4 of the table of IFB for this particular work. This Bid security shall be in

favor of Employer as named in Appendix and may be in one of the following forms;

a. Bank Guarantee from any scheduled Indian bank, in the format given in

Volume III. (Bank Guarantee is applicable only for Bid Estimated Amount of

Crore and above) and Bank Guarantee of Schedule and Private Banks shall be

considered as per GoG Finance Department’s Circular No. FD/MSM/e-

file/4/2023/0057/D.M.O. Date 21/04/2023 or as per their latest amendment.

b. Fixed Deposit Receipt issued by any Scheduled Indian Bank or a foreign Bank

approved by the Reserve Bank of India.

# A Valid Bid Security / EMD Exemption Certificate issued by (1) Road & Building

Department of Govt. of Gujarat. Exemption Certificate is applicable only when

Registration Certificate of Appropriate Class and Category of Approved

Contractors is required as eligible criteria of bidder.

16.2 Bank guarantees (and other instruments having fixed validity) issued as surety

for the bid shall be valid for 45 days beyond the validity of the bid i.e. total

validity of 120+45 = 165 Days

16.3 Any bid not accompanied by an acceptable Bid Security and not secured as

indicated in Sub-Clauses 16.1 and 16.2 above shall be rejected by the Employer

as non-responsive.

16.4 The Bid Security of unsuccessful bidders will be returned within 28 days of the

end of the bid validity period specified in Sub-Clause

16.5 The Bid Security of the successful bidder will be discharged when the bidder

has signed the Agreement and furnished the required Performance Security.

16.6 The bid Security may be forfeited

(a) If the Bidder withdraws the bid after Bid opening during the period of Bid

(b) If the Bidder does not accept the correction of the Bid Price, if any or

(c) In the case of a successful Bidders, if the Bidder fails the specified time limit to

(i) Sign the Agreement; or

(ii) Furnish the requirement Performance Security.

(d) #If found necessary, the bidder will be intimated for negotiation, He will be

intimated maximum three times within the validity period for negotiation, If

contractor does not respond in time, his Bid Security (EMD) will be forfeited and his

tender will be rejected. Punitive action will be taken on such contractors. (As per GoG

17. Alternative Proposals by Bidders.

17.1 Bidders shall submit offers that fully comply with the requirements of the bidding

documents, including the conditions of contract (including mobilization advance or

time for completion), basic technical design as indicated in the drawing and

specifications. Conditional offers or alternative offers will not be considered further in

the process of tender evaluation.

18. Format and Signing of Bid

18.1 The Bidder shall prepare documents comprising the bid as described in Clause 12 of

these Instructions to bidder as the “Technical Bid “and “Financial Bid” in separate

parts to be uploaded.

D. SUBMISSION OF BIDS

20. Deadline for Submission of the Bids

20.1 Complete Bids must be received online by the Employer at the tender website

specified above not later than the date indicated in appendix.

20.2 The Employer may extend the deadline for submission of bids by issuing an

amendment in accordance with Clause 10, in which case all right and obligation of

the Employer and the bidders previously subject to the original deadline will then be

subject to the new deadline.

22. Modification and Withdrawal of Bids

22.1 Bidders may modify or withdraw their bids online before the deadline prescribed in

Clause 20 or pursuant to Clause

22.3 No bid shall be modified or withdrawn after the deadline for submission of Bid.

22.4 Withdrawal or modification of a bid between the deadline for submission of bids

and the expiration of the original period of bid validity specified in Clause

above or as extended pursuant to Clause 15.2 may result in the forfeiture of the Bid

security pursuant to Clause

E. BID OPENING AND EVALUATION

23. Bid Opening

23.1 The Employer will open all the Bids received including modifications made pursuant

to Clause 22, in the presence of the Bidders or their representatives who choose to

attend at time, date and the place specified in Appendix in the manner specified in

Clauses 20 and 23.3, In the event of the specified date of Bid opening being declared a

holiday for the Employer, the Bids will be opened at the appointed time and location

on the next working day.

23.3 The “Technical Bid” shall be opened. The amount, form and validity of the bid security

furnished with each bid will be announced. If the bid security furnished does not

conform to the amount and validity period as specified in the invitation for bid (ref.

Column 4 and paragraph 3), and has not been furnished in the form specified in Clause

16, the technical bid will not be opened.

23.4 (i) Subject to confirmation of the bid security by the issuing Bank, the bids

accompanied with valid bid security will be taken up for evaluation with

respect to the Qualification 23.3 information and other information

furnished in part I of the bid pursuant to Clause 12.1.

(ii) If required, the bidder will be asked in writing to clarify his Qualification

Documents with respect to any required clarification.

(iii) The bidders will respond in not more than 7 days of issue of the clarification

(iv) Immediately (usually within 3 or 4 days), on receipt of these clarification the

Evaluation Committee will finalize the list of responsive bidders whose

financial bids are eligible for consideration.

23.6 At the time of opening of “Financial Bid”, the names of the bidders were found

responsive in accordance with Clause 23.4(iv) will be announced. The bids of only

these bidders will be opened. The responsive Bidders’ names, the Bid prices, the

total amount of each bid, any discount and such other details as the Employer may

total amount of each bid, any discount and such other details as the Employer may

consider appropriate, will be announced by the Employer at the opening.

23.7 the time of opening of “Financial Bid”, the names of the bidders were found

responsive in accordance with Clause 23.4(iv) will be announced. The bids of only

these bidders will be opened. The responsive Bidders’ names, the Bid prices, the

total amount of each bid, any discount, and such other details as the Employer may

total amount of each bid, any discount, and such other details as the Employer may

consider appropriate, will be announced by the Employer at the opening.

23.8 In case bids are invited for more than one package, the order for opening of the

“Financial Bid” shall be in order of estimated amount of Bids from highest to lowest.

23.9 The Employer shall prepare minutes of the Bid opening, including the information

disclosed to those present in accordance with Sub-Clause 23.6.

24.1 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 Bidder to

influence the Employer’s processing of Bids or award decisions may result in the

rejection of his Bid.

25. Clarification of Financial Bids

25.1 To assist in the examination, evaluation, and comparison of Bids, the Employer may, at

his discretion, ask any Bidder for clarification of his Bid, including breakdowns of unit

rates. The request for clarification and the response shall be in writing or by e- mail,

but no change in the price or substances of the Bid shall be sought, offered, or

permitted except as required to confirm the correction of arithmetic errors

discovered by the Employer in the evaluation of the Bids.

25.2 Subject to sub-clause 25.1, no Bidder shall contact the Employer on any matter

relating to his Bid opening to the contract is awarded. If the Bidder wishes to bring

additional information to the notice of the Employer, it should do so in writing.

25.3. Any effort by the Bidder to influence the Employer in the Employer's bid evaluation,

bid comparison or contract award decision may result in the rejection of the Bidders’

26. Examinations of Bids and Determination of Responsiveness

26.1 During the detail evaluation of "Technical Bid", the Employer will determine whether

each Bid (a) meets the eligibility criteria defined in Clause 3 and 4; (b) has been

properly signed; (c) is accompanied by the required securities and; (d) is substantially

responsive to the requirements of the Bidding document. During the detailed

evaluation of the “Financial Bid”, the responsiveness of the bids will be further

determined with respect to the remaining bid conditions, i.e., priced bill of

quantities, technical specifications, and drawings.

26.2 A substantially responsive “Financial Bid” is one which confirms all the terms,

conditions and specifications of bidding documents, without material deviation or

reservation. A material deviation or reservation is one (a) which affects in any

substantial way the scope, quality, or performance of the Works; (b) which limits in

any substantial way, inconsistent with the Bidding documents, the Employer’s rights

or the Bidder’s obligations under the Contract; or (c) whose rectification would affect

unfairly the competitive position of other Bidders presenting substantially

responsive Bids.

26.3 If a “Financial Bid” is not substantially responsive, it will be rejected by the

Employer, and may not subsequently be made responsive by correction or

withdrawal of the non-conforming deviation or reservation.

29. Evaluation and Comparison of Financial Bids

29.1 The Employer will evaluate and compare only the Bids determined to be substantially

responsive in accordance with Sub-Clause 26.2.

29.3 The Employer reserves the right to accept or reject any variation or deviation.

Variation and deviations and other factors, which are in excess of the requirements of

the Bidding documents or otherwise result in unsolicited benefits for the Employer,

shall not be taken in to account in Bid evaluation.

29.4 The estimated effect of the price adjustment conditions under Clause 47 of the

Conditions of Contact, during the period of implementation of the Contract, will not

be taken in to account in Bid evaluation.

29.5 If the Bid of the successful Bidder is seriously unbalanced in relation to the

Engineer’s estimate of the cost of work to be performed under the contract the

Employer may require the Bidder to produce detailed consistency of those prices

with the construction methods and schedule proposed. After evaluation of the price

analyses, the Employer may require that the amount of the performance security set

forth in Clause 34 be increased at the expense of the successful /bidder to a level

sufficient to protect the Employer against financial loss in the event of default of the

successful Bidder under the Contract.

29.6 A bid which contains several items in the bill of Quantities which are unrealistically

priced low and which cannot be substantiated satisfactorily by the bidder may be

rejected as non-responsive.

F. AWARD OF CONTRACT

31. Award Criteria

31.1 Subject to Clause 32, the Employer will award the contract to the Bidder whose

Bid has been determined.

(i) to be substantially responsive to the Bidding documents and who has offered

the lowest evaluated Bid Price; and

(ii) to be within the available bid capacity adjusted to account for his bid price

which is the lowest evaluation in any of the packages opened earlier than the

one consideration.

In no case, the contract shall be awarded to any bidder whose available bid

capacity is less than the evaluated bid price, even if the said bid is the lowest

evaluated bid. The contract will in such cases be awarded to the next lowest bidder

at his evaluation bid price.

32. Employer’s Right to Accept any Bid and to Reject any or all Bids

32.1 Notwithstanding Clause 31, the Employer reserves the right to accept or reject any

Bid, and to cancel the Bidding process and reject all Bids, at any time prior to the

award of contract, without thereby incurring any liability to the affected bidder or

Bidder or any obligation to inform the affected Bidder or Bidders of the grounds for

the Employer’s action.

33. Notification of Award and Signing of Agreement

33.1 The Bidder whose Bid has been accepted will be notified of the award by the

Employer prior to expiration of the Bid validity period by cable, telex or facsimile

confirmed by registered letter. This letter (hereinafter and in the condition of

contract called the “Letter of Acceptance”) will state the sum that the Employer will

pay the Contractor in consideration of the execution, completion, and maintenance of

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

Contract called the “Contract Price”).

33.2 The notification of award will constitute the formation of the contract, subject only to

the furnishing of a performance security in accordance with the provisions of Clause.

33.3 The Agreement will incorporate all agreements between the Employer and the

successful Bidder. It will be signed by the Employer and to the successful Bidder,

within 28 days following the notification of award along with the Letter of

Acceptance. Within 21 days of receipt, the successful Bidder will sign the Agreement

and deliver it to the Employer.

33.4 Upon the furnishing by the successful Bidder of the Performance Security, the

Employer will promptly notify the other Bidders that their Bids have been

34. Performance Security

34.1 (A) Within 10 (Ten) days of receipt of Letter of Acceptance, the successful Bidder

shall furnish to the Employer an irrevocable and unconditional guarantee from a

Bank in the form set forth in Section 8 (the “Performance Security”) for an

amount equal to 3% (Three percent) of its Contract Price. In case of bids

mentioned below, the successful Bidder, along with the Performance Security,

shall also furnish to the Authority an irrevocable and unconditional guarantee

from a Bank in the same form given at Section 8 towards an Additional

Performance Security (The “Additional Performance Security”) for an amount

calculated as under:

(a) If the Contract Price offered by the Selected Bidder is lower than 10% but

up to 20% of the Estimated Project Cost, then the Additional Performance

Security shall be calculated @ 20% of the difference in the (i) Estimated

Project Cost (as mentioned in Bid Document) - Minus 10% of the

Estimated Project Cost and (ii) Contract Price offered by the selected

(b) If the Contract Price offered by the Selected Bidder is lower than 20% of

the Estimated Project Cost, then the Additional Performance Security

shall be calculated @ 30% of the difference in the (i) Estimated Project

Cost (as mentioned in Bid Document) - Minus 10% of the Estimated

Project Cost and (ii) Contract Price offered by the selected Bidder.

(c) This Additional Performance Security shall be treated as part of the

Performance Security.

(B) The Performance Security shall be valid beyond 60(sixty) days of the Defects

Liability Period and the Additional Performance Security shall be valid

beyond 28 (twenty-eight) days of Project Completion Date.

34.2 If the performance security is provided by the successful Bidder in the form of a

Bank Guarantee, it shall be issued either (a) at the Bidder’s option, by a

Nationalized/Scheduled Indian bank or (b) by a foreign bank located in India and

acceptable to the Employer. As per GoG Finance Department’s Circular No.

FD/MSM/e-file/4/2023/0057/D.M.O. Date 21/04/2023 or as per their latest

34.3 Failure of the successful Bidder to comply with the requirement of Sub-Clause

shall constitute sufficient grounds for cancellation of the award and forfeiture of the

35 Corrupt of Fraudulent Practices

37.1 The Employer will reject a proposal if it determines that the Bidder recommended for

award has engaged in corrupt or fraudulent practices in completing for the

contract in question and will declare the firm ineligible, either indefinitely or for a

stated period of time, to be awarded a contract with National Highways Authority of

India/ State PWD and any other agencies, if it at any time determines that the firm

has engaged in corrupt or fraudulent practices in completing for the contractor, or in

3.72 Furthermore, Bidders shall be aware of the provision stated in Sub- Clause 59.2 of

the Conditions of Contract.

QUALIFICATION INFORMATION

QUALIFICATION INFORMATION

2. Additional Requirements

3.1 Bidders should provide any additional information required to fulfill the

requirements of Clause 4 of the Instructions to the Bidders, if applicable.

(ii) Undertaking

* Fill the name of Consultant

SAMPLE FORMAT FOR EVIDENCE OF ACCESS TO OR

AVAILABILITY OF CREDIT FACILITIES

(CLAUSE 4.5.6 OF ITB)

BANK CERTIFICATE

This is to certify that M/s. is a reputed company

with a good financial standing.

If the contract for the work, namely is awarded to the

above firm, we shall be able to provide overdraft/credit facilities to the extent of

Rs. to meet their working capital requirements for executing the above

during the contract period.

Senior Bank Manager

Address of the Bank

1. I, the undersigned, do hereby certify that all the statements made in the required

attachments are true and correct.

2. The undersigned also hereby certifies that neither our firm M/s.

_ have not abandoned any work of

Government of Gujarat/Government of India/any Board or Corporation under

Government of Gujarat/Government of India nor any contract awarded to us for

such works have been rescinded, during last five years prior to the date of this

3. The undersigned hereby authorize(s) and request (s) any bank, person, firm or

corporation to furnish pertinent information deemed necessary and requested by

the Department to verify this statement or regarding any (our) competence and

general reputation.

4. The Undersigned understands and agrees that further qualifying information

may be requested, and agrees to furnish any such information at the request of

the Department/ Project implementing agency.

(Signed by an Authorized Officer of the Firm)

Title of Officer

CONDITIONS OF CONTRACT

Conditions of Contract

Table of Contents

A General Page D. Cost Control

1 Definitions 36 37 Bill of Quantities

2 Interpretation 37 38 Changes in the Quantities

3 Language and Law 38 39 Variations

4 Engineer’s Decisions 38 40 Payments for Variations

5 Delegations 38 41 Cash Flow Forecasts

6 Communications 38 42 Payment Certificates

7 Sub-Contractors 38 43 Payments

8 Other Contractors 38 44 Compensations Events

9 Personnel 40 45 Tax

10 Employer’s & Contractor Risk 40 46 Currencies

11 Employers Risks 40 47 Price Adjustment

12 Contractor’s Risk 40 48 Retention

13 Insurance 40 49 Liquidated damages

14 Site Investigations Reports 41 50 Bonus

15 Queries about the Contract 41 51 Advance Payment

16 Contractors to Construct the 41 52 Securities

17 The Works to be Completed By 41 53 Deleted

the Intended Completion Date

18 Approval by the Engineer 41 54 Cost of Repair

20 Discoveries 42 E. Finishing the Contract

21 Possession of the Site 42 55 Completion

22 Access to the Site 42 56 Taking Over

23 Instructions 42 57 Final Account

24 Disputes 42 58 Operating and Maintenance

25 Procedure for Disputes

26 Deleted 43 59 Terminations

60 Payment upon Terminations

B. Time Control 61 Property

27 Programme 44 62 Release from Performance

28 Extensions of the Intended

completion date

29 Deleted 44 F.Special Conditions of

30 Delays Ordered by The 44 63 Labour

Engineer 64 Compliance with labour

31 Management Meetings 45 65 Arbitration

32 Early Warning

C. Quality Control

33 Identifying Defects

35 Correction of Defects

36 Uncorrected Defects

CONDITIONS OF CONTRACT

1.1 Terms which are defined in the Contract Data are not also defined in the Conditions of

Contract but keep their defined meaning.

Bill of Quantities means the priced and completed Bill of Quantities

forming part of the Bid

Compensation Events are those defined in Clause 44 hereunder

The Completion Date is the date of completion of the Works as certified by

the Engineer in accordance with Sub Clause

The Contract is the contract between the Employer and Contractor to

execute, complete and maintain the Works till the completion of Defects

Liability Period. It consists of the documents listed in Clause 2.3 below.

The Contract data defines the documents and other information which

comprise the Contract.

The Contractor is a person or corporate body whose Bid to carry out the

Work has been accepted by the Employer.

The Contractor’s Bid is the completed Bidding document submitted by the

Contractor to the Employer and includes Technical and Financial Bids.

The Contract Price is the price stated in the Letter of Acceptance and

thereafter as adjusted in accordance with the provisions of the Contract.

Days are calendar days: months are calendar months.

The Defects Liability Period is the period named in the Contract Data and

calculated from the Completion Date.

The Employer is the party who will employ the Contractor to carry out the

The Engineer is the person named in the Contract Data (or any other

competent person appointed and notified to the contractor to act in replacement of

the Engineer) who is responsible for supervising the Contractor, administering the

Contract, certifying payments due to the Contractor, issuing and valuing Variations

to the Contract, awarding extensions of time, and valuing the Compensations

Equipment is Contractor’s machinery and vehicles brought temporarily to

the site to construct the Works.

The Initial Contract Price is the Contract Price listed in the Employer’s

Letter of Acceptance.

The Intended Completion Date is the date on which it is intended that the

Contractor shall complete the Works. The Intended Completion Date is specified in

the Contract Data. The Intended Completion Date may be revised only by the

Engineer by issuing an extension of time.

Materials are all supplies, including consumables, used by the contractor for

incorporation in the works.

Plant is any integral part of the work which is to have mechanical, electrical,

electronic or chemical or biological functions.

The Site is the area defined as such in the Contract Data.

Site Investigation Reports are those which were included in the Bidding

documents and are factual interpretive reports about the surface and subsurface

conditions at the site.

Specifications means the Specifications of the works included in the Contract

and any modification or addition made or approved by the Engineer.

The Start Date is given in the Contract Data. It is the date when the

Contractor shall commence execution of the works. It does not necessarily coincide

with any of the Site Possession Dates.

A Subcontractor is a person or corporate body who has a Contract with the

Contractor to carry out a part of the work in the Contract which includes work on the

Temporary Works are works designed, constructed, installed, and removed

by the Contractor which are needed for construction or installation of the Works.

A Variation is an instruction given by the Engineer, which varies the Works.

The Works are what the Contract requires the Contractor to construct, install,

and turn over to the Employer, as defined in the Contract Data.

2. Interpretation

2.1 In interpreting these Conditions of Contract, singular also means plural,

male also means female or neuter and the other way around. Heading

have no significance. Words have their normal meaning under the

language of the Contract unless specifically defined. The Engineer will

provide instructions clarifying queries about Conditions of Contract.

2.2 If sectional completion is specified in the Contract Data, references in

the Conditions of Contract to the Works, the Completion date, and Intended

Completion Date apply to any Section of the Works (other than references

to the Completion Date and Intended Completion date for the whole works)

2.3 The documents forming the Contract shall be interpreted in the

following order of priority

(2) Letter of Acceptance, notice to proceed with works

(3) Contractor’s Bid

(4) Contract Data

(5) Conditions of Contract including Conditions of Contract

(6) Specifications

(8) Bills of quantities and

(9) Any other document listed in the Contract Data as forming part of the

3. Language and Law

The language of the Contract and the law governing the Contract are stated in

the Contract Data.

4. Engineers Decisions

Except where otherwise specifically stated, the Engineer will decide

contractual matters between the Employer and the Contractor in the role

representing the Employer.

The Engineer may delegate any of his duties and responsibilities to other

people after notifying the Contractor and may cancel any delegation after

notifying the Contractor.

6. Communications

Communications between parties which are referred to in the conditions are

effective only when in writing. A notice shall be effective only when it is

delivered (in terms of Indian Contract Act).

7. Sub-Contracting

The Contractor may subcontract any portion of work, up to a limit specified in

contract data, with the approval of the engineer but may not assign the

Contract without the approval of the Employer in writing. Subcontracting

shall not alter the Contractor’s obligations. Sub-contracting of supply or

specific items of work is not allowed.

The sub-contractor must be registered in appropriate class and category for

the part of work to be subcontracted.

8. Other Contractors

8.1 The Contractor shall cooperate and share the Site with other

contractors, public authorities, utilities and the Employer between the

dates given in the Schedule of other Contractor. The Contractors shall as

refer to in the Contract Data, also provide facilities and services for them

as described in the Schedule. The employer may modify the schedule of

other contractors and shall notify the contractor of any such modifications.

9.1 The Contractor shall employ the key personnel named in the Schedule of

Key Personnel as referred to in the Contract Data to carry out the functions

stated in the Schedule or other personnel approved by the Engineer. The

Engineer will approve any proposed replacement of key personnel only if

their qualifications, abilities, and relevant experience are substantially

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

9.2 If the engineer asks the Contractor to remove a person who is a member

of the Contractor Staff or his work force stating the reasons the Contractor

shall ensure that the person leaves the Site within seven days and has no

further connection with the work in the Contract.

10. Employer’s and Contractors Risks

10.1 The Employer carries the risk which these Contract states are

Employer’s risks, and the Contractor carries the risks which these

Contracts states are Contractors risk.

11. Employer’s Risks

11.1 The employer is responsible for the excepted risks which are (a) in so far

as they directly affect the execution of the Works, the risks of war,

hostilities, invasion, act of foreign enemies, rebellion, revolution,

insurrection or military or usurped power, civil war, riot commotion or

disorder (unless restricted to the Contractor’s employees), and

contamination from any nuclear fuel or nuclear waste or radioactive toxic

12. Contractor’s Risks

12.1 All risks of loss of or damages to physical property and of personal injury

and death which arise during and in consequence of the performance of the

Contract other than the excepted risks are the responsibility of the

13.1 The Contractor shall provide, in the joint names of the Employer and

the Contractor, insurance cover from the Start date to the end of the

Defects Liability Period, in the amounts and deductibles stated in the

Contract data for the following events which are due to the Contractor’s

(a) Loss of or damage to the works, Plant and materials,

(b) Loss of or damage to Equipment

(c) Loss of or damages of property (expect the Works, Plant, Materials and

Equipment) in connection with the Contract; and

(d) Personal injury or death.

13.2 Policies and certificates for insurance shall be delivered by the Contractor

to the Engineer for the Engineer’s approval before the Start Date. All such

insurance shall provide for compensation to be payable in the types and

proportions of currencies required to rectify the loss or damage incurred.

13.3 If the Contractor does not provide any of the policies and certificates

required, the Employer may affect the insurance which the Contractor

should have provided and recover the premiums the Employer has paid

from payments otherwise due to the Contractor or, if no payment is due, the

payment of the premiums shall be a debt due.

13.4 Alterations to the terms of an insurance shall not be made without the

approval of the Engineer.

13.5 Both parties shall comply with any conditions of the insurance policies.

14. Site Investigation Report

14.1 The Contractor in preparing the Bid shall rely on any site Investigation

reports referred to in the Contract Data, supplemented by any

information available to the Bidder.

15. Queries about the Contract data

15.1 The engineer will clarify queries on the Contract Data

16. Contractor to Construct the Works

16.1 The Contractor shall construct and install the works in accordance with

the specification and Drawings.

17. The Works to be completed by the Intended Completion Date

17.1 The Contractor may commence execution of the Works on the Start Date

and shall carry out the Works in accordance with the programme

submitted by the Contractor, as updated with the approval of the

Engineer, and complete them by the Intended Completion date

18. Approval by the Engineer

18.1 The Contractor shall submit Specifications and Drawings showing the

proposed Temporary works to the Engineer, who is to approve them if

they comply with the Specifications and drawings.

18.2 The Contractor shall be responsible for design of temporary works.

18.3 The Engineer’s approval shall not alter the contractor responsibility for

design of the Temporary works.

18.4 The Contractor shall obtain approval of third parties to the design of

the Temporary works where required.

18.5 All Drawings prepared by the Contractors for the execution of the

temporary or permanent work are subject to prior approval by the Engineer

before their use.

19.1 The Contractor shall be responsible for the safety of all activities on the Site.

20. Discoveries

20.1 Anything of historical or other interest or of significant value

unexpectedly discovered on the site is the property of the Employer. The

contractor is to notify the engineer of such discoveries and carry out the

Engineer’s instructions for dealing with them.

21. Possession of the Site

21.1 The Employer shall give possession of all parts of the site to the Contractor.

If possession of a part is not given by the date stated in the Contract Data

the Employer is deemed to have delayed the start of the relevant

activities and this will be a Compensation Event.

21.2 If within 25% of the time limit of the project, 80% of possession of the site

is not handed over to the Contractor, then contractor/ Employer may fore-

close the contract. Contractor/Employer has to foreclose the work within

30 days after lapse of 25%-time limit and after 30 days foreclosure

option will be closed.

22. Access to the Site

22.1 The Contractor shall allow the Engineer and any person authorized by

the Engineer access to the Site, to any place where work in connection

with the Contract is being carried out or is intended to be carried out and to

any place where materials or plants are being manufactured/ fabricated/

assembled for the works.

23. Instructions

23.1 The Contractor shall carry out all instructions of the Engineer pertaining

to works which comply with the applicable laws where the site is located.

23.2 The Contractor shall permit the Employer to inspect the Contractor’s

accounts and records relating to the performance of the Contractor and

to have them audited by auditors appointed by the Employer, if so required

by the Employer.

24.1 If the Contractor is of the view that a decision taken by the Engineer

was either outside the authority given to the Engineer by the Contract or

that the decision was wrongly taken, the decision shall be

referred to …… (Higher Authority)within 14 days of the notification of the

Engineer's decision. If the issue is not resolved, any party can refer the

matter for conciliation within 15 days from the decision given by the

(a) For the work up to Rs.100 Cr., if any of the parties is not satisfied with

the decision of ……………………………. both the parties have to refer to

the Chief Engineer concern for the conciliation process.

(b) For the work more than Rs.100 Cr., if any of the parties is not satisfied

with the decision of the ……………………………….. both the parties have to

refer to the #Secretary, Roads & Building Department, Government of

Gujarat for the conciliation process.

If the dispute is not resolved through the conciliation process, he may refer

the dispute to Gujarat Public Works Contract Dispute Arbitration Tribunal. If

the Contractor fails to refer a claim / dispute to the Higher Authority within

14 days of the notification of the Engineer's decision, the Contractor shall not

be entitled to any additional payment/claim if he doesn’t follow the above

sequence in stipulated time and he should not stop the work.

25. Procedure for Disputers

25.1 The arbitration shall be conducted in accordance with the

arbitration procedure stated in the Special Conditions of Contract.

B. TIME CONTROL

27.1 Within the time stated in the Contract Data the Contractor shall submit to

the Engineer for approval a Programme showing the general methods,

arrangements orders, and timing for all the activities in the works along

with monthly cash flow forecast.

27.2 An update of the Programme shall be a programme showing the actual

progress achieved on each activity and the effect of the progress achieved

on the timing of the remaining work including any changes to the

sequence of the activities.

27.3 The Contractor shall submit to the Engineer, for approval an updated

programme at intervals no longer than the period stated in the Contract

data. If the Contractor does not submit an updated programme within this

period, the Engineer may withhold the amount stated in the Contract data

from the next payment after the date on which the overdue programme has

been submitted.

27.4 The Engineer’s approval of the programme shall not alter the

Contractor’s obligations. The Contractor may revise the programme and

submit it to the Engineer again at any time. A revised programme is to

show the effect of Variations and Compensations events.

28. Extension of the Intended Completion Date

28.1 The Engineer shall extend the Intended Completion Date if a

compensation Event occurs or a Variation is issued which makes it

impossible for completion to be achieved by the Intended Completion Date

without the Contractor taking steps to accelerate the remaining work and

which would cause the Contractor to incur additional cost.

28.2 The Engineer shall decide whether and by how much to extend the

Intended Completion Date within 35 days of the Contractor asking the

Engineer for a decision upon the effect of a compensation event or

Variation and submitting full supporting information. If the Contractor has

failed to give early warning of a delay or has failed to cooperate in dealing

with a delay, the delay by this failure shall not be considered in assessing

the new Intended Completion Date.

28.3 The Engineer shall within 14 days of receiving full justification from the

contractor for extension of Intended Completion Date refer to the

Employer his decision. The employer shall in not more than 21 days

communicate to the engineer the acceptance or otherwise of the

Engineer’s decision. If the employer fails to give his acceptance, the

Engineer shall not grant the extension and the contractor may refer the

matter under Clause

30. Delays Ordered by the Engineer

30.1 The Engineer may instruct the Contractor to delay the start or progress of

any activity within the works.

31. Management Meetings

31.1 Either the Engineer or the Contractor may require the other to attend a

management meeting. The business of a management meeting shall be

to review the plans for remaining work and to deal with matters raised in

accordance with the early warning procedure.

31.2 The Engineer shall record the business of management meetings and is

to provide copies of his record to those attending the meeting and to the

Employer. The responsibility of the parties for actions to be taken is to

be decided by the Engineer either at the management meeting or after the

management meeting and stated in writing to all who attended the meeting.

32. Early Warning

32.1 The Contractor is to warn the Engineer at the earliest opportunity of

specific likely future events or circumstances that may adversely affect the

quality of the work, increase the Contract price or delay the execution of

works. The Engineer may require the contractor to provide an estimate of

the expected effect of the future event or circumstance on the contract

price and completion date. The estimate is to be provided by the

Contractor as soon as reasonably possible.

32.2 The Contractor shall cooperate with the Engineer in making and

considering proposals for how the effect of such an event or circumstance

can be avoided or reduced by anyone involved in the work and in carrying

out any resulting instruction of the Engineer.

C. QUALITY CONTROL

# 33. Identifying Defects/ Defect liability period

33.1 : Defect liability period : The contractor shall be responsible to make good and

remedy at his own expense any defect which may develop or may be noticed

before the period mentioned hereunder from the certified date of completion.

The Engineer in charge shall give the contractor a notice in writing about the

defects and the contractor shall make good the same within 15 days of receipt of

the notice. In the case of failure on the part of the contractor, the Engineer- in-

charge may rectify or remove or re-execute the work at the risk & cost of the

contractor. The Engineer-in-charge shall be entitled to appropriate the

whole or any part of the amount of security deposit towards the expenses, if

any, Incurred by him in rectification, removal or re-execution. The Defects

Liability period shall be as under….

(a) For all works costing up to Rs. 50,000 (amount put to tender), the period shall

be 3 Months from the certified date of completion.

(b) For all works costing more than Rs. 50,000 and up to Rs. 1 crore (amount put

tender), the period shall be 12 (Twelve) months from the certified date of

completion or one monsoon, whichever is later.

(c) For major projects costing more than Rs. 1 crore, the period shall be

Months from the certified date of completion which should include three

(d) For original building works the defect liability period will be 4 years or elapse

of 4 monsoon period following date of possession of building taken over by

user agency following the certified date of completion, whichever is later.

For the purpose of deciding the monsoon period, the 30th September shall be

treated as the last date.

Modified vide R & B D Circular No. PAC-11-102008-2076-N dated 31/8/2009,

PRCH/102013(2976) 2759-N, Dated 27/05/2013 and Circular

No.TNC/10/2016/Clause 17A (Correction/(1)C Dated 12/05/2016]

33.2 Free maintenance guarantee period for works of Road/Bridge construction

the contractor shall have to give four years free maintenance guarantee

from the certified date of completion. During this period the contractor

shall visit the site every six months along with the concerned Section

Officer / Deputy Executive Engineer and will examine the work already

carried out in this contract like road work, jungle cutting, side shoulders,

side gutter, road furniture, patta etc. and will prepare Km. wise

inspection report duly signed by all concerned and any defect observed shall

be done within 15 days by the contractor at his risk and cost as per the

direction of Engineer in charge. The contractor needs to do

videography of these visits and require to submit at the time of release of

FMG. If B.T. the surface during the maintenance period of 4 years is worn

out then agency shall have to provide renewal coating as per tender

item as directed by the Engineer-in- charge. The amount equivalent to 5% of

each running bill shall be withheld and will be released after the free

maintenance guarantee period (i.e. 4 years) is over.

However, this amount shall be released against fixed deposit or bank

guarantee pledged in the name of Executive Engineer after completion

certificate of work is issued.

(1) The flakiness and elongation index (combined) for coarse aggregates

under no circumstances shall exceed the allowable limit set forth in the

relevant clause for the material in question.

(2) 2% of the amount eligible for the payment of bituminous items shall be

withheld till the miscellaneous items like earthwork in embankment /

cutting for side shoulders, side gutters, kilometer / indicator / guard

stones, sign boards etc. are completed in all respect by the contractor.

After completion of the miscellaneous items, the above said 2% withheld

amount shall be released.

(Govt. of Gujarat's G.R. No.: TNC-10-2013-3(Part-3)/C, Dtd. 13/12/2013).

(3) Videography for the surface under Maintenance Guarantee is to be done as

per Govt. letter No.: SSR/10/2015-16/26/C, Dtd. 26/11/15 for the work

costing more than Rs. 5.00 Crore.

(4) Setting up of adequate laboratory & deployment of quality engineers.

The contractor shall have to set up the laboratory with adequate

equipment. Till the setting up of adequate laboratory is completed &

reported of this to the engineer (subject to due verification by engineer’s

representative) by contractor in writing, Rs.2,00,000/- shall be withheld.

The qualified quality Engineer shall be deployed exclusively for this

contract by the contractors. If quality Engineer is not deployed by

contractor within one month after the date of work order, the amount

equivalent to Rs.20,000 per month shall be recovered till the actual

deployment of quality engineer. The amount so recovered towards the

deployment of quality engineers shall not be refunded.

(5) Asphalt work will have to be cross checked as per G.R. No.:

RGN/60/2006/35/C, dtd.31/05/07 before final bill is paid.

(6) Maintenance during Construction Period

During the Construction Period, the Contractor shall maintain, at his own

risk and cost, the existing lane(s) of the road so that the traffic worthiness

and safety thereof are at no time materially inferior as compared to their

condition 10 (ten) days prior to the date of the Agreement, and shall

undertake the necessary repair and maintenance works for this purpose;

provided that the Contractor may, at his cost, interrupt and divert the flow

of traffic if such interruption and diversion is necessary for the efficient

progress of works and conforms to Good Industry Practice; provided

further that such interruption and diversion shall be undertaken by the

Contractor only with the prior written approval of the Executive Engineer

which approval shall not be unreasonably withheld. For the avoidance of

doubt, it is agreed that the Contractor shall at all times be responsible for

ensuring safe operation of the road.

33.3 The Engineer shall check the Contractor’s work and notify the Contractor

of any defects that are found. Such checking shall not affect the

Contractor’s responsibilities the Engineer may instruct the Contractor to

search for a Defect and to uncover and test any work that the Engineer

considers may have a Defect.

34.1 If the engineer instructs the Contractor to carry out a test not specified in

the Specification to check whether any work has a Defect and the test

shows that it does, the Contractor shall pay for the test and any samples.

If there is no defect the test shall be a Compensation Event.

34.2 #1% of the amount of work done should be deducted from R.A. Bill of

the contractor for testing the quality of material workmanship,

irrespective of actual charges.

34.3 Agency has to establish testing laboratory on site for the various test to

be carried out in the work for this purpose agency shall construct a pukka

laboratory building with all facility on site at location specified by the

engineer in charge.

35. Correction of defects

35.1 The engineer shall give notice to the Contractor of any defects before the

end of the defects Liability Period, which begins at Completion and is

defined in the contract data. The Defects Liability Period shall be extended

for as long as Defects remain to be corrected.

35.2 Every time notice of a Defect is given, the Contractor shall correct the

notified defect within the length of time specified by the Engineer’s notice.

36. Uncorrected Defects

36.1 If the Contractor has not corrected a defect within the time specified in

the Engineer’s notice, the Engineer will assess the cost of having the Defect

corrected, and the Contractor will pay this amount.

D. COST CONTROL

37. Bill of Quantities

37.1 The bill of Quantities shall contain items for the constructions, installation,

testing and commissioning work to be done by the Contractor.

37.2 The bill of Quantities is used to calculate the Contract price. The Contractor

is paid for the quantity of the work done at the rate in the Bill of Quantities

38. Change in the Quantities

38.1 The Engineer shall have power to make any alterations in or addition to

the original specifications , drawings, designs and instructions that may

appear to him to be necessary or advisable during the progress of the

work and the contractor shall be bound to carry out the work in

accordance with any instruction in this connection which may be given to

him in writing signed by the Engineer and such alteration shall not

invalidate the contract and any additional work which the contractor

may be directed to do in the manner above specified as part of the work

shall be carried out by the contractor on the same conditions in all

respects on which he agreed to do the main work and at the same rate as

are specified in the tender for the main work.

Except that when the quantity of any item exceeds the quantity as in the

tender by more than 130%, the contractor will be paid for the quantity in

excess of 130%, at the rate entered in the SOR of the year during which the

excess in quantity is first executed.

39.1 All Variations shall be included in updated programmes produced by the

40. Payments for Variations

40.1 If the additional or altered work includes any class of work for which no

rate is specified in this contract, then such class of work shall be carried

(i) At the rate derived from the item within the contract which is comparable to

the one involving additional or altered class of work; where there are more

than one comparable items, the item of the contract which is nearest in

comparison with regard to class or classes of the work involved shall be

selected and the decision of the Superintending Engineer as to the nearest

comparable item shall be final and binding on the contractor.

(ii) If the rate cannot be derived in accordance with (i) above, such class of works

shall be carried out at the rate entered in the Schedule of Rates of the division

for the year in which the tender was received, increased or decreased by the

percentage by which the tender amount is more or less as compared to the

amount arrived at the rates in the “Schedule of Rates” of the Division in the

year in which the tender was received. If the Schedule of rates of the Division

does not contain all the items, the percentage increase or decrease of the

tender shall be calculated considering such items which were included in the

“Scheduled Rates” of the division for the year and for materials consumed on

such item the rate to be charged would be the basic rate taken into account

for fixing the rate in S.O.R. referred to above.

(iii) If it is not possible to arrive at the rate from (i) and (ii) above, such class of

work shall be carried out at the rate decided by the competent authorities on

the basis of detailed rate analysis after hearing the contractor before a

Committee of two Superintending Engineers stationed at the same place or

the nearest place.

40.2 If the additional or altered work, for which no rate is entered in the

“Schedule of Rates” of the Division is ordered to be carried out before the

rate is agreed upon, then the contractor shall within seven days of the date

of receipt by him of the order to carry out the work, inform the Engineer-in-

charge of the rate, which it is his intention to charge for such class of work

and if the Engineer in charge does not agree to this rates, he shall by notice

in writing be at liberty to cancel his order to carry out such class of work

and arrange to carry it out in such manner as he may consider it advisable,

provided always that if the contractor shall commence work or incur any

expenditure in regard thereof before the rates shall have been determined

as lastly herein before mentioned, then in such cases he shall only be

entitled to be paid in respect of the work carried out or expenditure

incurred by him prior to the date of the determination of the rate as

aforesaid according to such rate or rates as shall be fixed by the Engineer-

in-charge. In the event of the dispute, the decision of the Superintending

Engineer of the Circle shall be final.

Where, however, the work is to be executed according to the

designs, drawings and specifications recommended by the contractor and

accepted by the competent authority, the alternation above referred to shall

be within the scope of such designs, drawings and specifications appended to

The time limit for the completion of the work shall be extended in

the proportion that the increase in the cost occasioned by alterations bears

to the cost of the original work and the certificate of the Engineer-in-

charge as to such proportion shall be final and conclusive.

41. Cash Flow Forecasts

41.1 When the programme is updated, the contractor is to provide the

engineer with an updated cash flow forecast.

42. Payment certificates.

42.1 The Contractor shall submit to the Engineer monthly statements of the

estimated value of the work completed less the cumulative amount

certified previously.

42.2 The Engineer shall check the Contractor’s monthly statement within

days and certify the amount to be paid to the Contractor after taking in to

account any credit or debit for the month in question in respect of

materials for the works in the relevant amounts and under conditions set

forth in sub-clause 32.3 of the Contract Data (secured Advance).

42.3 The value of work executed shall be determined by the Engineer.

42.4 The value of work executed shall comprise the value of the quantities of

the items in the Bill of Quantities completed.

42.5 The value of work executed shall include the valuation of variations and

compensation events.

42.6 The Engineer may exclude any item certified in a previous certificate or

reduce the proportion of any item previously certified in any certificate in

the light of later information

43.1 Payments shall be adjusted for deductions for advance payments,

retention, other recoveries in terms of the contract and taxes at source,

as applicable under the law. The Employer shall pay the Contractor the

amounts certified by the Engineer within 28 days of the date of each

43.2 Payment of GST (prevailing rates) on the amount payable under the

contract to the Contractor will be made by the Employer. Hence, it is the

responsibility of the contractor to pay the GST to the concerned Authority.

43.3 Items of the works for which no rate or price has been entered in will not

be paid by the Employer and shall be deemed covered by other rates and

prices in the Contract.

44. Compensation events

44.1 The following are compensation Events unless they are caused by the

(a) The Employer does not give access to a part of the Site by the site

Possession date stated in Contract data to the Contractor

44.2 In case of compensation event occurs and it prevents the work being

completed beyond the Intended Completion Date then Authority will

approve EOT with eligible contractual price escalation.

45.1 The rates quoted by the Contractor must be inclusive of all taxes prevailing

on due date of bid submission except GST. However, any subsequent

changes in the tax structure by Government after due date of bid

submission will be compensated (+/-) on availability or submission of

actual documentation. Contractor will have to intimate Engineer regarding

changes occurred in the tax structure after bid submission. If the contractor

fails to provide such information and if any financial obligation may arise

due to change in tax structure, same will be recovered from the contractor.

45.2 GST will be paid separately on the bills. Hence, it is the responsibility of

the contractor to pay the GST to the concerned Authority.

46. Currencies.

46.1 All payment shall be made in Indian Rupees.

52.1 The performance Security (including additional security for unbalanced

bids) shall be provided to the Employer no later than the date specified

in the Letter of Acceptance and shall be issued in an amount and form and

by a bank or surety acceptable to the Employer, and denominated in Indian

Rupees. The performance Security shall be valid until a date 60 days

from the date of expiry of Defects Liability Period and the additional

security for unbalanced bids shall be valid until a date 28 days from the

date of issue of the certificate of completion.

53. Cost of Repairs.

54.1 Loss or damage to the Works or Materials to be incorporated in the

Works between the Start date and the end of Defects Correction periods

shall be remedied by the Contractor at the Contractor’s cost if the loss or

damages arises from the Contractor’s acts or omissions.

E. FINISHING THE CONTRACT

55.1 The Contractor shall request the Engineer to issue a Certificate of

Completion of the works and the Engineer will do so upon deciding

that the work is completed.

55. Taking Over

56.1 The Employer shall take over the Site and the Works within seven days of

the Engineer issuing a certificate of Completion.

56. Final Account

57.1 The Contractor shall supply to the Engineer a detailed final account of

the total amount that the Contractor considers payable as full and final

the total amount that the Contractor considers payable as full and final

settlement of all claims under the Contract for items before the end of the

Defects Liability Period. The Engineer shall issue a Defect Liability

Certificate and certify any final payment that is due to the Contractor

within 56 days of receiving the Contractor's account if it is correct and

complete. If it is not, the Engineer shall issue within 56 days a schedule

that states the scope of the corrections or additions that are necessary. If

the Final Account is still unsatisfactory after it has been resubmitted, the

Engineer shall decide on the amount payable to the Contractor and issue a

payment certificate, within 56 days of receiving the Contractor’s revised

57.2 If reversal in characteristic of tender (L1 becoming L2) on account of

excesses and savings in final account is observed, the Engineer/Employer

shall be at liberty to restrict the final payment of BOQ items to the lowest

amount evaluated of the bids considering the final quantities and the

rates quoted including the rebates if any. Payment of variation items

shall however be made at the rates approved by the Employer, within

days from the physical completion of work.

57. Operating and Maintenance Manuals

58.1 If “as built” drawings and/or operating and maintenance manuals are

required, the Contractor shall supply them by the dates stated in the

58.2 If the Contractor does not supply the Drawings and/or manuals by the

dates stated in the Contract data, or they do not receive the Engineer’s

approval, the Engineer shall withhold the amount stated in the Contract

Data from payments due to the Contractor.

58. Termination

59.1 The Employer or the Contractor may terminate the Contract if the other

party causes a fundamental breach of the Contract.

59.2 Fundamental breaches of Contract include, but shall not be limited to

1. The contractor stops work for 28 days when no stoppage of work is

shown on the current programme and the stoppage has not been

authorized by the Engineer

2. The Engineer instructs the Contractor to delay the progress of the Works

and the instructions is not withdrawn within 28 days;

3. The Employer or the Contractor is made bankrupt or goes into liquidation

other than for a reconstructions or amalgamation

4. A payment certified by the Engineer is not paid by the Employer to the

Contractor within 56 days of the date of the Engineer’s certificate

5. The Engineer gives Notice that failure to correct a particular Defect is a

fundamental breach of Contract and the Contractor fails to correct it

within a reasonable period of time determined by the Engineer;

6. The Contractor does not maintain a security which is required;

7. The Contractor has delayed the completion of works by the number of

days for which the maximum amount of liquidated damages can be paid as

defined in the Contract data; and

8. If the Contractor, in the judgment of the Employer has engaged in corrupt

or fraudulent practices in competing for or in executing the Contract.

For the purpose of this paragraph: “corrupt practice” means the

offering, giving, receiving or soliciting of anything of value to influence the

action of a public official in the procurement process or in contract execution.

“Fraudulent practice” means a misrepresentation of facts in order to influence

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

borrower, and includes collusive practice among Bidders (prior to or after bid

submission) designed to establish bid prices at artificial non-competitive

levels and to deprive the Borrower of the benefits of free and open

59.3 When either party to the Contract gives notice of a breach of contract to

the Engineer for a cause other than those listed under Sub Clause

above, the Engineer shall decide whether the breach is fundamental or not.

59.4 Notwithstanding the above, the employer may terminate the Contract for

59. Payment upon Termination

60.1 If the Contract is terminated because of a fundamental breach of Contract

by the Contractor, the Engineer shall issue a Certificate for the value of the

work done less advance payments received up to the date of the issue

of the certificate, less other recoveries due in terms of the contract, less

taxes due to deducted at source as per applicable law and less the

percentage to apply to the work not completed as indicated in the

Contract data. Additional Liquidated Damages shall not apply. If the total

amount due to the Employer exceeds any payment due to the Contractor

the difference shall be a debt payable to the Employer.

60.2 If the Contract is terminated at the Employer’s convenience or because of

a fundamental breach of Contract by the Employer, the Engineer shall

issue a certificate for the value of the work done, the cost of balance material

brought by the contractor and available at site, the reasonable cost of

removal of equipment, repatriation of the Contractor’s personnel employed

solely on the works, and the Contractor’s cost of protecting and securing

the Works and less advance payment received up to the date of the

certificate, less other recoveries due in terms of the contract and less

taxes due to deducted at source as per applicable law.

61.1 All materials on the Site, Plant Equipment, Temporary Works and Works

are deemed to be property of the Employer, if the Contract is terminated

because of a Contractor’s default.

61. Release from Performance

62.1 If the Contract is frustrated by the outbreak of war of by any other

event entirely outside the control of either the Employer or the Contractor

the Engineer shall certify that the Contract has been frustrated. The

Contractor shall make the Site safe and stop work as quickly as possible

after receiving this certificate and shall be paid for all work carried out

before receiving it and for any work carried out afterwards to which

commitment was made.

F. SPECIAL C O N D I T I O N S OF CONTRACT

The Contractor shall, unless otherwise provided in the Contract, make

his own arrangements for the engagement of all staff and labour, local or

other, and for their payment of housing, feeding and transport.

The Contractor shall, if required by the Engineer, deliver to the

Engineer a return in detail, in such form and at such intervals as the Engineer

may prescribe, showing the staff and the numbers of the several classes of

labour from time to time employed by the Contractor on the site and such

other information as the Engineer may require.

63. COMPLIANCE WITH LABOUR REGULATIONS

During continuance of the contact, the Contractor and his sub-

contractor shall abide at all times by all existing labour enactments and rules

made thereunder, regulations, notification and bye laws of the State or central

Government or local authority and any other labour law (including rules),

regulations, bye laws that may be passed or notifications that may be issued

under any labour law in future either by the State or the Central Government

or the local authority. Salient features of some of the major labour laws that

are applicable to the construction industry are given below. The Contractor

shall keep the Employer indemnified in case any action is taken against the

Employer by the competent authority on account of contravention of any of

the provisions of any Act or rules made thereunder, regulations or

notifications including amendments. If the Employer is caused to pay or

reimburse, such amounts as may be necessary to cause or observe, or for

observance of the provisions stipulated in the notifications/bye

laws/Acts/Rules/regulations including amendments, if any, on the part of the

Contractor, the Engineer/employer shall have the right to deduct any money

due to the Contractor including his amount of performance security. The

Employer/Engineer shall also have the right to recover from the Contractor

any sum required or estimated to be required for making good the loss or

damage suffered by the Employer.

The employees of the Contractor and the Sub-Contractor in no case shall be

treated as the employees of the Employer at any point to time.

SALIENT FEATURES OF SOME MAJOR LABOUR AND OTHER LAWS APPLICABLE TO

ESTABLISHMENTS ENGAGED IN BUILDING AND OTHER CONSTRUCTIONS WORK

A) Workmen Compensation Act 1923 :- The Act provides for compensation in

case of injury by accident arising out of and during the course of employment.

B) Payment of Gratuity Act. 1972 :- Gratuity is payable to an employee under the

Act on satisfaction of certain conditions on separation if an employee has

completed 5 years service or more on death, the rate of 15 days wages for every

completed year of service. The Act is applicable to all establishments employing

10 or more employees.

C) Employees P.F. and Miscellaneous Provision Act 1952:- The Act Provides for

monthly contributions by the employer plus workers @ 10% or 8.33% The

benefits payable under the Act are :

1. Pension or family pension on retirement or death, as the case may be.

2. Deposit linked insurance on the death in harness of the worker.

3. Payment of P.F. accumulation on retirement/death etc.

D) Maternity Benefit Act 1951 :- The Act provides for leave and some other

benefits to women employees in case of confinement or miscarriage etc.

E) Contract Labour (Regulation & Abolition) Act 1970 : The Act provides for

certain welfare measures to be provided by the Contractor to contract labour and

in case the Contractor fails to provide, the same are required to be provided, by

the Principal Employer by Law. The principal Employer is required to take

Certificate of Registration and the Contractor is required to take license from the

designated Officer. The Act is applicable to the establishments or Contractor of

Principal Employer, if they employ 20 or more contract labour.

F) Minimum Wages Act 1948 :- The Employer is supposed to pay not less than the

Minimum Wages fixed by appropriate Government as per provisions of the Act, if

the employment is a scheduled employment. Construction of Building, Roads,

Runways are scheduled employment.

G) Payments of wages Act 1936:- It lays down as to by what date the wages are to

be paid, when it will be paid and what deductions can be made from the wages

of the workers.

H) Equal remunerations Act 1979 :- The Act provides for payment of equal

wages for work of equal nature to Male and Female workers and for not making

discrimination against female employees in the matter of transfer, training and

promotions etc.

I) Payments of Bonus Act 1965 :- The Act is applicable to all establishments

employing 20 or more employees. The Act provides for payments of annual

bonus subject to a minimum of 8.33% of wages and maximum of 20 % of wages

to employees drawing Rs. 3500/- per month or less. The bonus to be paid to

employees getting Rs. 2500/- per month or above Rs. 3500/- per month shall be

worked out by taking wages as Rs. 2500/- per month only. The Act does not

apply to certain establishments. The newly set-up establishments are exempted

for five years in certain circumstances. Some of the State Governments have

reduced the employment size from 20 to 10 for the purpose of applicability of

J) Industrial Disputes Act 1947 :- The Act lays down the machinery and

procedure for resolutions of Industrial disputes, in what situations a strike or

lock-out becomes illegal and what are the requirements for laying off or

retrenching the employees or closing down the establishment.

K) Industrial employment (standing Orders) Act 1946 :- It is applicable to all

establishments employing 100 or more workmen (employment size reduced by

some of the State and Central Government to 50). The Act provides for laying

down rules governing the conditions of employment by the Employer on

matters provided in the Act and get the same certified by the designated

L) Trade Unions Act 1926:- The Act lays the procedure for registration of trade

unions of workmen and employers. The Trade Unions registered under the Act

have given certain immunities from civil and criminal liabilities.

M) Child Labour (Prohibition & Regulation Act 1986 :- The Act prohibits

employment of children below 14 years of age in certain occupations and

process and provides for regulation of employment of children in all other

occupations and processes. Employment of Child labour is prohibited in Building

and Construction Industry.

N) Inter – State Migrant workmen’s (Regulation of Employment & Conditions

of service) Act 1979:- The Act is applicable to an establishment which employs

5 or more inter-state migrant workmen through an intermediary (who has

recruited workmen in one state for employment in the establishment situated in

another state).The inter-state migrant workmen, is an establishment to which

this Act becomes applicable, are required to be provided certain facilities such as

housing, medical aid, traveling expenses from home upto the establishment and

O) The Building and Other Construction workers (Regulation of employment

and Conditions of Service) Act 1996 and the Cess Act of 1996:- All the

establishments who carry on any building or other constructions work and

employ 10 or more workers are covered under this Act.

All such establishments are required to pay cess at the rate not exceeding 2% of

the cost of construction as may be modified by the government. The Employer of

the establishment is required to provide safety measures at the Building or

construction work and other welfare measures, such as canteens, First Aid

facilities, Ambulance, Housing accommodations for workers near the workplace

etc. The Employer to whom the Act applies has to obtain a registration

certificate from the Registering Officers appointed by the Government.

P) Factories Act 1948 :- The Act lays down the procedure for approval of plans

before setting up a factory, health and safety provisions, welfare provisions,

working hours, annual earned leave and rendering information regarding

accidents or dangerous occurrences to designated authorities. It is applicable to

premises employing 10 persons or more with aid of power or 20 or more

persons without the aid of power engaged in the manufacturing process.

Q) Royalty charges-The contractor shall pay the royalty to the competent

authority as per rule. The royalty charges paid shall be borne by the

contractor and shall not be reimbursed by the Employer.

R) Following Pollution control Acts and amendments made thereof

from time to time shall be applicable.

1. Water (Preservation and control of Pollution) Act,

2. Air (Prevention and Control of Pollution Act

3. Environmental (Protection) Act

The contractor must commit to adopting Environmental

management plan for best energy use, waste management, the reduction

of pollution as in EMS (Environmental Management system)ISO-14001-

64. ARBITRATION (GCC Clause 24)

The procedure for arbitration will be as follows: -

24.1 If the Contractor is of the view that a decision taken by the Engineer was either

outside the authority given to the Engineer by the Contract or that the decision

was wrongly taken, the decision shall be referred to…...… (Higher Authority)

within 14 days of the notification of the Engineer's decision. If the issue is

not resolved, any party can refer the matter for conciliation within 15 days

from the decision given by the …………………………………………………………………..

(a) For the work up to Rs.100 Cr., if any of the parties is not satisfied with the

decision of the …………………………….both the parties have to refer to the

#Chief Engineer concerned for the conciliation process.

(b) For the work more than Rs.100 Cr., if any of the parties is not satisfied

with the decision of the Superintending Engineer, both parties have to

refer to the #Secretary, Roads & Building Department, Government of

Gujarat for the conciliation process.

If the dispute is not resolved through the conciliation process,

contractor may refer the dispute to Gujarat Public Works Contract Dispute

Arbitration Tribunal. If the Contractor fails to refer a claim / dispute to the

Higher Authority within 14 days of the notification of the Engineer's

decision, the Contractor shall not be entitled to any additional

payment/claim if he doesn’t follow the above sequence in stipulated time.

However, during such period, he would not stop the work in any case.

Clause Reference With

respect To section

Item marked “N/A” do not apply to this Contract.

1. The Employers is [CL.1.1]

Name: Director, District Rural Development Agency, Ahmedabad

Address: District Rural Development Agency, Anjali char Rasta, Ahmedabad

Name of authorized Representative (will be intimated later)

2. The Engineer is

Name of Authorized Representative

3. The Defects Liability Period is 03 years from the date of [CL.1.1&33]

Completion. (Including Monsoon Period)

4. The Start Date shall be 1st days for the date of issue of the Notice [CL.1.1]

to proceed with the work.

5. The Intended Completion Date for the whole of the works is [CL.1.1,17&2]

4 MONTHS after start of work with the following milestones:

Milestone dates: [CL.2.2& 49.1]

Physical works to be completed Period from the start date

Milestone 1 i.e. 25% 15 days

Milestone 2 i.e. 50% 45 days

Milestone 3 i.e. 75% 85 days

Milestone 4 i.e. 100% 120 days

6. The Site is located at DHOLKA TALUKA, VILLAGE - NESDA, TRANSAD, [CL.1.1]

BHETAWADA, AMBALIYARA

7. The name and identification number of the Contract is: [CL.1.1]

8. The works consist of with items as per [CL.1.1]

B.O.Q. The works shall, inter alia, include the following, as

Specified or as directed:

(C) Other Items [CL.1.1]

Any Other Items as required to fulfill all contractual obligations as per the Bid

10. The following documents also form part of the Contract: [CL.2.3(9)]

As per clause 2-3

11. The law which applies to the Contract is the law of Union of India [CL.3.1]

12. The language of the Contract documents is English [CL.3.1]

13. Limit of subcontracting 25% of the Initial Contract Price [CL.7.1]

14. The Schedule of Other Contractors [CL.8]

15. The Schedule of Key Personnel As per Annex – II to Section I [CL.9]

16. The minimum insurance cover for physical property, injury and death [CL13]

is Rs. 5 lakhs per occurrence with the number of occurrences limited

to four. After each occurrence, the contractor will pay an additional

premium necessary to make insurance valid for four occurrences

17. Site Investigation report [CL.14]

18. The Site Possession dates shall be …………………….. [CL.21]

19. The period for submission of programme for approval of the engineer [CL. 27.1]

shall be ........ days from the issue of Letter of Acceptance.

20. The period between program updates will be …….. days. [CL.27.3]

21. The amount to be withheld for late submission of an updated [CL. 27.3]

programme shall be Rs. …………

22. The following events shall also be Compensation Events [CL. 44]

Substantially adverse ground conditions encountered during the

course of execution of work not provided for in the bidding document.

(i) Removal of underground utilities detected subsequently

(ii) Significant changes in classification of soil requiring

additional mobilization by the contractor, e.g. ordinary soil

to rock excavation,

(iii) Removal of unsuitable material like marsh, debris dumps,

etc. not caused by the contractor.

(iv) Artesian conditions

(v) Seepage, erosion landslide

(vi) River training requiring protection of permanent work

(vii) Presence of historical, archeological or religious structures,

monuments interfering with the works

(viii) Restriction of access to ground imposed by civil, judicial, or

military authority

23. The currency of the Contract is Indian Rupees [CL. 46]

TECHNICAL SPECIFICATION

GENERAL INFORMATION

A. GENERAL: The work under this tender shall be executed strictly in accordance with constructional and material

requirements defined under these specifications. The Contractor shall carefully acquaint himself with these specifications to

determine his contractual obligations for the work. The conditions of these specifications will be binding on the Contractor and

no deviation shall be permissible unless specifically approved by the Consultant / Project-in-charge in writing. In absence of any

detailed Specifications these specification, latest Indian Standard specifications and code of practice shall become applicable.

Wherever the codes and specifications are silent then the same shall be governed by sound engineering practices and the

decision of the Project-in-charge / consultant in matters of interpretation etc., shall be final and binding on the Contractor.

B. DRAWINGS / DIMENSIONS:

Figured dimensions on drawings shall supersede measurements by scale and drawings to a large scale take

precedence over those to a smaller scale. Special dimensions or directions in the specifications shall be checked on

site. Measurements and other information concerning the existing site on the drawings are believed to be correct,

but the Contractor shall verify them for himself and also examine the nature of the

ground as no claim or allowance whatsoever shall be entertained hereinafter on account of any errors or omissions

in the levels or the description of the ground turning out to be different from what was expected or shown on the

C. CORRELATION OF DRAWING:

Before commencement of work, the Contractor shall correlate all relevant structural, Construction and services

drawings and satisfy himself that the information available is complete and unambiguous. The Contractor shall be

responsible for any error / difficulty in execution / damage incurred owing to any discrepancy in the drawings

which has been overlooked by him and has not been brought to the notice of the Project-in-charge / Consultant

before execution.

D. B.I.S CODES OF PRACTICE:

Wherever any reference is made in the specifications to any bureau of Indian Standard (IS) code of practice, it

shall be understood to indicate the latest version of the code of practice in usage at the time of construction.

E. ALL SIMILAR RATES TO HAVE SAME QUOTED RATE

It shall be noted by the bidder that a similar item repeated at various sub heads of the tender, he should quote same

rates. For any reasons different rates are quoted the lowest rate shall be considered for deriving

the substituted / extra item rate if required.

1. SPECIFICATIONS FOR EXCAVATION AND EARTHWORK

The scope of work broadly includes but is not necessarily limited to the following i.e. clearing of the site, excavation

of foundation trenches, back-filling, disposal of surplus earth as required including dewatering, shoring and

strutting. Contractor shall provide all tools, labour, equipment and incidentals necessary, required for completion of

all aspects of work covered in these specifications.

1.2 TYPES OF SOIL

Contractor shall thoroughly acquaint himself with the types of soil in excavation by an inspection of nature of the

ground at site & scrutiny of the investigation details available with the Consultant.

1.3 CLEARING THE SITE

The site on which the structure is to be built shown on the drawing and the area required for setting out and other

operations like road, drains, sheds, etc. should be cleared and all obstructions, loose stones, materials, and rubbish

of all kinds, stump, brush wood and trees removed as directed, roots being entirely grubbed up. All useful materials

obtained will be the property of the Project-in-charges and will be handed over to the Consultant. Rejected

materials will be removed by the contractor to his own dump.

1.4 GROUND LEVELS AND SITE LEVEL PLAN

Before starting the excavations, the requisite block levels of the entire plot shall be taken by the contractor in

consultation with the Consultant and a proper record of these levels to be kept, which shall be jointly signed by the

Contractor and the Consultant. A block level plan showing-all the ground levels of the plot shall be prepared and

shall jointly be signed by the Contractor and the Consultant/Project-in-charge.

1.5 SETTING OUT

After clearing the site, and preparing the site level plan, the Contractor will set out the center lines of the building or

other involved works and get the same approved from the Consultant. It shall be the responsibility of the

Contractor to install substantial reference marks; bench marks etc. and maintain them as long as required by the

Consultant. The Contractor will assume full responsibility for proper setting out, alignment, elevation and

dimension of each and all parts of the work

1.6 EXCAVATION AND PREPARATION OF FOUNDATIONS FOR CONCRETING

1.6.1 General Foundation trenches shall be dug wet or dry to the dimensions as shown on the drawings or as directed by the

Consultant. The excavated materials shall be stacked at a sufficient distance away from the edge of the excavated pit so

as not to endanger the stability of the sides. The soil heap shall not exceed more than 2 m from the ground.

The contractor shall, at his expense and without any extra charge, make provision for all shoring and strutting,

extra excavation in slope, extra excavation in working space, dredging or bailing out water, and the excavation

shall be kept free from water when the foundation work is in progress.

If excavation is carried out to greater width, length or depth than specified, extra depth shall be made up by filling

in lean concrete and extra length or width by filling in with earth rammed hard or by masonry as shall be borne in

full by the contractor.

If required to protect the sides of pits and trenches, timber shoring and strutting shall be erected. The timbering

shall be closed or open depending on the nature of the soil and work, and arrangement of timbering including sizes

and spacing of members used shall be as approved by the Consultant. NO extra charges shall be admissible on this

The bottoms of all excavation shall be trimmed and leveled in accordance with drawings / directions of the

Consultant / Project-in-charge. The bottoms of all excavation shall be rammed and wetted before deposition of

concrete. The contractors shall report to the Consultant / Project-in-charge when the excavation is ready to

receive concrete. NO concrete shall be placed in foundations until the contractor has obtained the approval

of Consultant / Project-in-charge.

1.6.2 PROTECTION

All foundation trenches and similar excavations shall be strong, fenced and marked with red lights at night for

watchmen to avoid accidents. Adequate protective measures shall be taken to see that the excavation does not

affect or damage adjoining structures. All measures required for the safety of the excavation, the people working in

and near the foundation trenches, property and the people in the vicinity shall be taken care by the Contractor at his

own cost, being entirely responsible for any injury and damage to property caused by his negligence or accident

due to his construction operations.

1.6.3 STACKING OF EXCAVATED MATERIALS:

Work for excavation shall include sorting out of useful materials and stacking them on site as directed. Materials

suitable and useful for back-filling, plinth, filling, leveling of the plot or other use shall be stacked at convenient

places, but not in such a way as to obstruct free movement of men, equipment and vehicles or encroach on the area

required for constructional purposes.

1.7 BACKFILLING

1.7.1 Earth obtained from excavation (or approved earth brought from out side for which no extra payment shall be made)

shall be filled in layers as described in 1.7.3 around the foundations and under floors, In case extra earth used for filling

is required under floors, plinth protection including sit outs, courtyards, the contractor will do at their own cost. The

lump sum offer shall be deemed to include the earth filing required under floors and plinth protection with plinth height

shown in Drawing above the bottom of foundation concrete and finished courtyard level shown in Drawing below D PC

/coping level of the main building.

1.7.2 QUALITY OF FILL

Fill shall be of well compacted, well graded earth or sand and shall be free from tree stumps, organic matter, seed

and peat etc Where earth or sand from source other than excavation at site is used, the quality of such earth or

sand shall be the same as that obtained from excavation at site, or superior to it. Fine sand for filling is River Sand.

Black cotton soil shall not be used for back filling or plinth filling.

1.7.3 COMPACTION

The fill shall be spread in layers not exceeding 20 cm thick and each layer shall be watered and thoroughly

consolidated by suitable mechanical rollers, rammers, vibrators or other approved plant or system of compaction.

The fill material shall be pulverized before depositing in place. An optimum moisture content shall be maintained

for the filled materials. Compaction shall be done so as to achieve a dry density of not less than 90% of the

maximum density obtained at optimum moisture content, except for the upper 20 cm layer which shall be

compacted to a density of not less than 95% of the maximum density. In order that the fill shall be reasonably

uniform through out, the material shall be dumped in place in approximately horizontal layers “Edge dumping”, a

process by which the materials is pushed off edge of the fill and allowed to roll down the slope shall not be carried

out. If there is traffic over the fill during construction, either by construction equipment or otherwise, it should be

routed to make the compaction as uniform load shall be maintained and also care shall be taken to prevent any

wedging action.

1.8 SURPLUS EXCAVATED MATERIAL

All excavated material certified as surplus and not useful, shall be removed by the Contractor from the site in an

approved manner at his own cost and risk so as indemnify owner from any claims any time of whatsoever nature.

1. SPECIFICATIONS FOR ANTI-TERMITE TREATMENT

Prevention of termite from reaching the super structure can be achieved by creating a chemical barrier between

the ground and the building by treating the soil beneath the building and around the foundations.The

work shall be carried out as per IS 6313 part II. of 2001 or the latest edition. This shall be provided to sides and

bottom of trenches and footings including treating the backfill of foundations up to ground level and the vertical

surface of wall, and filling of each under floors and treating the surface at ground level 900 mm around the

Anti termite treatment, shall be carried out strictly in accordance with CPWD specifications using Chloropyrifos (CPP) an

Emulsified concentrate @ 1% concentration or any other approved chemical.

2.3 PRE-CONSTRUCTION CHEMICAL TREATMENT

This is a process in which chemical treatment is applied to a building in the early stages of its construction at the

rate specified In IS 6313 part II of 2001 or the latest edition. Hand operated pressure pump shall be used for

uniform spraying of the chemical. To have proper check for uniform spraying of chemical graduated

containers shall be used. Proper check should be kept that specified quantity of chemical is used for the

required areas during the operation.

2.4 TIME OF APPLICATION

Soil treatment shall start when foundation trenches and pits are ready to take lean concrete in foundations. Laying

of lean concrete shall start when chemical emulsion has been absorbed by the soil and the surface is quite dry.

Treatment should not be carried out when it is raining or soil is wet with rain or sub soil water. The foregoing

applies also in the case of treatment to the filled earth surface within the plinth before laying the sub grade for the

2.5 DISTURBANCE

The treated soil barriers shall not be disturbed after they are formed. If by chance, treated soil barriers are

disturbed, immediate steps shall be taken to restore the continuity and completeness of the barrier system.

2.6 TREATMENT OF COLUMN PITS AND WALL TRENCHES

a) The bottom surface and the sides (up to a height of above 300 mm) of the excavation made for column

pits and trenches shall be treated with the chemical at the rate specified in IS 6313 Part II of 2001 or the latest

b) After the column foundation and the wall foundation come up, the back fill in immediate contact with the

foundation structure shall be treated at the rate specified in IS 6313 Part II of 2001 or the latest edition of the

vertical surface of the substructure for each side If water is used for ramming the earth fill, the chemical

treatment shall be carried out after the ramming operation is done by prodding the earth at 150 mm centers

close to the wall surface and spraying the chemical with the above dose. The earth is usually returned in layers

and the treatment shall be carried out in similar stages. The chemical emulsion shall be directed towards the

concrete to masonry surface of the columns and walls so that the earth in contact with these surfaces is well

treated with the chemical.

c) In the case of R.C.C. framed structure with columns and plinth beams and R.C.C basement with concrete, mix is

rich and dense (being 1:2:4 or richer), it is unnecessary to start the treatment from the bottom of excavation

for columns and plinth beams. The treatment shall start at the depth of 500 mm below ground level. , From

this depth the back-fill around the columns, beams and R.C.C. basement wall shall be treated at the rate as

per IS 6313 Part II of 2001 or the latest edition. The other details of treatment shall be as laid down in the

Clause (b) above.

2.7 TREATMENT OF TOP SURFACE OF PLINTH FILLING

The top surface of the filled earth within plinth wall shall be treated with chemical emulsion at the rate as per IS

6313 Part II 2001 or the latest direction (surface area) before the sand/sub-grade is laid. Holes up to 50 to70

mm deep at 150 mm centers both ways shall be made with crow bars on the surface to facilitate

saturation of the soil with chemical emulsion.

2.8 TREATMENT OF JUNCTION OF WALL AND FLOOR

To achieve continuity of the vertical chemical barrier on inner wall surface from the ground level, small channel

X 30 mm shall be made at all the junctions of wall and columns with the floor (before laying the sub-grade) and rod

holes made in the channel up to ground level 150 mm apart and the chemical emulsion poured along the channel as

per rate of application, mentioned in IS 6313 Part II (2001) or the latest edition so as to soak the soil right up to

bottom. The soil shall be tamped back into place after this operation.

2.9 TREATEMENT OF SOIL ALONG EXTERNAL PERMIETER OF BUILDING

During progress of work, provide hole in the soil with iron rods along the external perimeter of the building at

intervals of about 150 mm and depth 300 mm and filling these holes with chemical emulsion at the rate (as per IS

6313 Part II of 2001 or the latest edition) per meter of perimeter of the external wall.

2.10 TREATMENT FOR EXPANSION JOINTS

Anti termite treatment shall be supplemented by treating through the expansion joint after the sub grade has been

laid as per IS 6313 Part II of 2001 or the latest edition.

2.11 TREATMENT OF SOIL SURROUNDING PIPES AND CONDUITS

When pipes and conduits enter the soil inside the area of the foundations, the soil surrounding the points of entry

shall be loosened around each such pipe, or conduit for a distance of 150 mm and up to depth of 75 mm before

treatment is commenced When they enter the soil external to the foundations, they shall be similarly treated unless

they stand clear of the walls of the building by about 75 mm for distance of over 300 mm from ground level.

2.12 SAFETY PRECAUTIONS

All chemicals used for anti-termite treatment are poisonous and hazardous to health. These chemicals can have an

adverse effect upon health when absorbed through the skin, inhaled as vapors or spray mists or swallowed.

Person using or handling these chemicals should be warned of these dangers and advised that absorption through

the skin is the most likely source of accidental poisoning. They should be cautioned to observe carefully the safety

precautions given below.

These chemicals are usually brought to site in the form of emulsifiable concentrates. The containers should be

clearly labeled and should be stored carefully so that children and pets cannot get at them. They should be kept

securely closed.

Special care should be taken to prevent skin contact with concentrates. Prolonged exposure to dilute emulsions

should also be avoided Workers should wear clean clothing and should wash thoroughly with soap and water,

especially before eating or smoking. In the event of severe contamination, clothing should be removed at once and

the skin washed with soap and water, if chemicals splash into the eyes they should be flushed with plenty of fresh

water and immediate medical attention should be sought.

The concentrates are oil solutions and present a fire hazard owing to the use of petroleum solvents. Flames should

not be allowed nearby during the mixing. Care should be taken in the applications and present a fire hazard owing

to the use of petroleum solvents Flames should not be allowed nearby during the mixing.

Care should be taken in the application of chemicals to see that they are not allowed to contaminate wells or

springs which serve as source of drinking water.

The contractor shall guarantee through a guarantee bond, the anti-termite work for 10 years from the date of completion of

the project, and shall indemnify the Project-in-charge against any defects that arise therein during the guarantee period as

aforesaid. They shall immediately rectify, any defects that may occur therein, and repair all other damage occurring to any

part of the structure on account of defect in Anti-termite treatment, during the guarantee period of aforesaid.

3. SPECIFICATION FOR CAST – IN – SITU REINFORCED CEMENT CONCRETE

3.1.1 DESCRIPTION

This section covers the requirements for finishing of cement concrete, proportioning, batching, mixing,

testing, placing, compacting, finishing, jointing, curing and all other work as required for cast in place

reinforced concrete. The contractor shall provide all the materials including cement, steel, labour, equipment, ‘form

work’, scaffolding etc., required for completion of all reinforced concrete works as per drawings and documents.

Cement concrete shall be composed of cement, fine aggregate, coarse aggregate, water, with or without admixture

as approved, proportioned and mixed as specified herein.

3.1.2 RELATED WORK SPECIFIED ELSEWHERE

a) Steel reinforcement

3.1.3 APPLICABLE CODES AND STANDARDS

The codes and standards generally applicable to the work of this section are listed hereinafter. IS

383 Coarse and fine aggregates from natural sources for concrete

IS 456 Code of practice for plain and reinforced concrete IS

516 Methods of testing for strength of concrete

IS 1199 Methods of sampling and analysis of concrete

IS 1838 Performed fillers for expansion joints in concrete non-extruding and resilient type IS

1946 Code of practice for use of fixing devices in walls, ceiling and floors of solid

IS 2389 Methods of testing of aggregate for concrete’s IS

2505 Concrete vibrators, immersion type

IS 2645 Integral cement water proofing compounds

IS 3414 Code of practice for design and installation of joints in buildings

IS 3558 Code of practice for use for immersion vibrators for consolidating concrete IS

4082 Recommendation on stacking and storage of construction materials at

IS 7861 Code of practice for extreme weather concretizing

IS 7861 Recommended practice for hot weather (part I) concretizing IS

8112 Ordinary Portland Cement grade

IS 12269 Ordinary Portland Cement grade

The following clauses are intended to amplify the requirements of the reference document listed above and the

contractor shall comply with these clauses

3.2.1 Material Report

3.2.2 Prior to start of delivery of materials required, the following shall be submitted by the contractor to the

Consultant / Project-in-charge for approval

Suppliers and / or sources of all consumable materials including cement, steel, fine and coarse aggregates, water

additives, bricks and timber etc.

Quality Inspection Plan to ensure continuing quality control of ingredients by periodic sampling, testing and

reporting to the Consultant on the quality of materials being supply

3.3 PLANT AND EQUIPMENT

The contractor shall submit the following to the Consultant well in advance.

The proposed program, methods and details of plant and Equipment for be used to testing of ingredients and

concrete samples.

The proposed programed methods and details of plant & equipment to be used for concrete work.

3.4 REPORTS FOR INSPECTION AND TESTING

During concreting operations, the contractor shall conduct inspection and testing as described under the list of

mandatory tests in this volume and all reports thereon shall be submitted in summary form to the Consultant /

Project-in-charge.

Before commencement of the work the contractor shall prepare working schedules of concreting giving dates and

rate of pour for each item of work and submit the same to the Consultant / Project-in-charge for their approval.

Before bringing to the site, all materials for cement concrete shall be approved by the Consultant / Project-in-

charge. All approved samples shall be deposited in the office of the Consultant / Engineer-in-charge before placing

orders for the materials with suppliers The materials brought on to the work shall

Conform in every respect to their approved samples.

Fresh samples shall be deposited with the Consultant / Project-in-charge whenever type or source of any material

changes The contractor shall check each fresh consignment of materials as it is brought on to the works to ensure

that they conform to the specification and / or approved samples.

The Consultant / Project-in-charge shall have the option to have any of the materials tested to find whether they

are in accordance with specifications at the contractor‘s expense. All bills vouchers and test certificates which in

the opinion of the Consultant / Project-in-charge are necessary to convince him as to the quality of materials or

their suitability shall be produced for his inspection when required.

Any materials which have not been found to the specification and not approved by the Consultant / Project- in-

charge shall be rejected forthwith and shall be removed from the site by the Contractor’s at his own cost within the

time stipulated by the Consultant / Project-in-charge. The Consultant / Project-in-charge shall have the powers to

cause the contractors to purchase and use materials from any particular source, as may in their opinion be

necessary for the proper execution of work.

Cement shall be provided by the Contractor. On the following types of cement as specified shall be used

a. Ordinary Portland Cement 43 grade confirming to BIS 8112-1987

b. Ordinary Portland Cement 53 grade confirming to BIS 12269-1987

Cement at site shall be stored in dry weather proof go-downs (or shed) built by the Contractor at his own costs in

stacks which are not higher than 10 bags. The cement go-down shall be constructed as per CPWD specifications.

The contractor shall conduct all necessary tests as specified in the IS, at his own cost to ascertain himself on quality

of the material.

3.6.2 AGGREGATES

a) Aggregates from natural sources shall be in accordance with IS:383. The contractor shall submit to the

Consultant / Project-in-charge certificates of grading and compliance from the suppliers for all consignments of

aggregate. In addition at site from time to time, the contractor shall test the aggregates in accordance with IS:

2386 parts I, II, III and IV. The contractor shall allow for and provide all necessary apparatus for carrying out each

test and for supplying test records to the Consultant.

b) For fair faced concrete, the contractor shall ensure that aggregates are free from iron pyrites and impurities which may

cause discoloration.

c) The fine aggregates shall be river sand, stone dust or other approved sand. It shall be free from clay, loam, earth or

vegetables matter and from salt or other harmful chemical impurities It shall be dean sharp, strong angular and

composed of hard siliceous material.

The grading of sand as determined by the method prescribed in IS: 2386 part I shall be within the limits of grading

zone III given in Table 1. When the grading falls outside the percentage limits given for sieves other than

micron, 300 micron, and 150 micron (I.S) sieves by not more 5 percent, it shall be regarded as falling within this

zone. The 5 percent can be excess submission on one more sieves.

I. S. Sieve Percentage passing for Grading

IV ZONEI ZONEII ZONEIII ZONE

The maximum quantity of silt as determined by the method prescribed in IS: 2386 Part II shall not exceed 8%.

Stone dust shall be within the limits of Grading Zone III given in table 1. When the grading falls outside the

percentage limits given for the sieves other than 600 micron and 300 micron (IS) sieves by not more than 5 percent

and on 150 micron sieves by not more than 20 percent it shall be regarded as falling within this zone. The 5 percent

can be excess summation on one or more sieves.

COARSE AGGREGATE

The coarse aggregate shall be crushed stone or broken stone. Coarse aggregate obtained from crushed or broken

stone shall be angular, hay, strong, dense, durable clean and free from soft, friable, thin, flat, elongated flaky

pieces. The coarse aggregate should be from the approved source/quarry. Coarse aggregate River shingle or pit

gravel shall be rounded, sound hard, clean, non-porous, suitably graded in size with or without broken fragments

and free from flat particle of shale, clay, silt, loam and other impurities.

Except where it can be shown to the satisfaction of the Consultant than a supply of properly graded aggregate of

uniform quality can be maintained over the period of the obtaining the coarse aggregate in different sizes &

blending them in correct proportions as and when required.

The maximum size of coarse aggregate shall be such that the concrete can be placed without difficulty so s to

surround all reinforcement thoroughly and fill the comers of form work.

Water used in the works shall be potable water and free from deleterious materials. Water used for mixing and

curing concrete as well as for cooling and/or washing aggregate shall be fresh and clean, free from injurious

amounts of oil, salts, acids, alkali, other chemicals and organic matter.

Water shall be from the source approved by the Consultant / Project-in-charge and shall be in accordance with

Clause 4.3 of IS:

Before starting any concreting work and whenever the source of water changes, the water shall be tested for its

chemical and other impurities to ascertain its suitability for use in concrete for approval of the Consultant. No

water shall be used until tested and found satisfactory. Cost of all such tests shall be borne by the contractor.

3.6.4 ADMIXTURES AND ADDITIVES

Chemical admixtures are not to be used until permitted by the Consultant/Project-in-charge in case their use is

permitted, the type, amount and method of use of any admixture proposed by the contractor shall be

submitted to the Consultant for approval

The contractor shall further provide the following information concerning each admixture to the

Consultant/Project-in-charge.

a) Normal dosage and detrimental effects, if any, of under dosage and over dosage.

b) The chemical names of the main ingredients in the admixture.

c) The chloride ion content, if any, expressed as a percentage by weight of admixture.

d) Whether or not the admixture leads to the entertainment of air when used in the manufacturer’s

recommended dosage.

e) Where two or more admixtures are proposed to be used in any one mix, the manufacturer’s written

confirmation of their compatibility.

In reinforced concrete, the chloride ion of any admixture as determined in accordance with IS: 6925 and the total

chloride ion in all admixtures used in concrete mix shall not exceed 0.30n percent by weight of cement. The

admixtures when used shall conform to IS: 9103. The suitability of all admixtures shall be verified by trial mixes.

The addition of calcium chloride to concrete containing embedded metal will not be permitted under any

Regarding admixtures when used shall be based on lingo-sulphonates with due consideration to clause 5.2 and

Waterproofing admixtures shall comply with IS:

The contractor shall obtain the approval of the Consultant/Project-in-charge for all plant items he proposes to use

for the manufacture and placing of concrete.

The arrangement shall maintain all items of plant at all times in a clean and efficient working condition.

All goods and products covered by these specifications shall be procured well in advance and stored as specified

Cement shall be stored on a raised floor in dry weather proof & dust free but well ventilated shed.

Cement bags shall be stacked close together away from external walls and in stacks of not more than ten bags to

avoid lumping under pressure.

Cement stored during monsoons or cement expected to be in store for more than eight weeks shall be completely

enclosed in 700 micron polyethylene sheet so arranged that the flap closes on the top stack. The contractor shall

ensure that protective polyethylene sheet is not damaged at any time during use.

Consignments of cement shall be used in order of delivery A record shall be kept of the batch numbers of cement

deliveries in such a form that the part of the works in which the cement is used can be readily identified. If during

delivery or by test, the cement is found to be defective, the same shall be returned back forthwith.

The contractor shall be responsible for the storage of cement at the site and no claim will be entertained in the

event of any damage occurring to cement due to faulty storage by the contractors or on account of his negligence.

Cement stored on site for a period longer than eight weeks shall be tested to the satisfaction of the

Consultant/Project-in-charge before it is used in the works. Cement that has failed the tests conducted shall not

be used in the works and shall be removed from the site immediately without fail.

3.8.2 STORING OF AGGREGATE

Aggregates shall be stored on a suitable well drained raft of concrete, timber, metal or other approved

material. The storage of aggregates on the ground will not be permitted.

Each size of aggregate shall be stored separately in such a manner as to prevent spillage and mixing of one

aggregate with an adjacent aggregate The dividing walls of any bin shall be of sufficient height and the aggregate

shall be so deposited that a distance of 100 mm shall be left between the top of the division wall and any

part of the aggregate stack

When stack piling, the aggregate shall not form pyramids resulting in segregation of different size particles. The

stacks shall be regular and of a height not exceeding two meters.

3.9 GRADES OF CONCRETE

The grades of concrete shall be in accordance with the following table. The grade of concrete to be used in each

section of work will be shown in the drawings or in the Bill of Quantities:

Grade of Grade of Concrete Characteristic Nominal maximum

Concrete strength i.e. compressive strength of aggregate size (mm)

15 cm. Cubes at 28 days (N/mm2)

Unless otherwise specified in the drawings, the maximum nominal size of coarse aggregates for different

grades of concrete shall be as under:

a) For concreting in very narrow space or in very small thickness 12 mm

b) For all reinforced concrete work except in massive foundations 20 mm

c) For all ordinary plain concrete and massive reinforced foundations 10 mm

All mix design grades viz., M10, M15, M20, M25, M30 etc., shall be designed and have a minimum cement

content as follows:

Grade Qty (in kg)

Minimum content of cement remaining unchanged, as specified above for each type of concrete mix, the

proportion and quantities of local sand and aggregate are to be worked out and determined in the

field/laboratory as per Road Research Note No.4, Department of Scientific and Industrial Research, United

Kingdom for design of concrete mixes or as per ACI 613 with the approval of the Engineer. Any change in the

source of aggregates will require the re-designing of the concrete mix for the Engineer's approval.

3.10 Mix Design

At the commencement of the contract, the Contractor shall make preliminary tests to determine the proportions by

weight of cement, fine aggregates, coarse aggregates and water necessary to produce required grades of concrete.

The mix proportions shall be selected to ensure that workability of the fresh concrete is suitable for the conditions

of handling and placing and when concrete hardens, it shall have the required strength, durability and surface

finish. The Contractor shall get approval of the Engineer to such proportions before start of concreting. However,

such approval shall not relieve the

Contractor of his responsibility to produce concrete having compressive strengths as laid down in the foregoing

No departure from the approved proportions will be permitted during the works unless and until the Engineer

gives written authorization for any change in proportion. The Engineer shall have authority at any time to check

whether the mixing of concrete is being carried out according to the approved proportions.

For the major and important RC works and for all special works, the design of mixes shall be made by the

Contractor at his own cost, for each grade of concrete as well as for various workability. The design of mixes shall

be made according to relevant I.S. codes or to approved standard methods.

The concrete made by designing the mix is termed hereinafter as "Design Mix Concrete".

3.11 Water/Cement Ratio

Where a particular water/cement ratio is stipulated in the design or drawing along with the characteristic grade

of concrete, the design of mix shall be carried out by adjusting the other variable factors to obtain characteristic

strength of concrete with stipulated water/cement ratio.

In the structures where the impermeability and shrinkage of concrete have an important bearing on the durability

and serviceability of the structures, such as water retaining structures, basements, underground premises, tunnels,

pump houses, exposed structures near sea side or deserts, pre-stressed structure, thin precast members etc., the

water/cement ratio shall be kept low and preferably not exceeding 0.45.

The water cement ratio as achieved in the mix design or as specified in the drawings shall be adhered to strictly

and shall not be varied without the permission of the Engineer.

3.12 Workability

The workability of fresh concrete shall be such that the concrete is just suitable for the conditions of handling and

placing so that after compaction, it becomes completely consistent and homogeneously surrounds all the

reinforcement and completely fills the formwork.

The workability of fresh concrete at the place of batching/mixing shall be measured by compacting factor test and

at the place of disposition by means of slump test. During the finalization of trial mixes, the relationship between

compacting factor and slump test shall be established for each grade of concrete as well as for various levels for

Normally, in the condition of low water cement ratio as well as for medium/high workability, the workability shall

be achieved by increasing the cement content.

In cases where the cement content is to be limited to reduce the heat of hydration, and the water / cement ratio is

also to be kept low to reduce the permeability or due to other requirements the desired workability may be

achieved with the use of limited doses of plasticizer or air entraining agent. In such cases, the method of mixing and

dosage of the plasticizer / air entraining agent shall be according to the manufacturer's specification and with the

approval of the Engineer.

Consistency and workability of concrete shall be checked by measuring the slump of a truncated cone of concrete

straight from the mixer under normal working conditions. The conical mold shall be of metal, 300 mm high and

100 mm and 200 mm in diameter at top and base respectively.

Moulds shall be prepared by the Contractor. The slump range of concrete shall be as per the tabulation given below,

as well as standards.

Slump tests shall be performed as per IS:1881 at intervals established by the Engineer at the Contractor's cost

in such a way as to check that the degree of consistency established by the Engineer for work in progress is

maintained. The table below gives the general slump range to be followed for various types of construction unless

otherwise shown on drawings or instructed by the Engineer.

Various types of construction ....Slump (in mm)... Max. Min.

Reinforced foundation walls and footings 80

Plain footings, caissons and structure walls 75

Compressor foundations and for heavy mass constructions 50

Pumps and other misc. equipment foundations 75

Columns, slabs, beams and reinforced walls 100

3.13 Durability

The durability of concrete, depending on the exposure condition, is to be taken into account while designing the

mix. For given aggregates, the cement content should be sufficient to make sufficiently low water/cement ratio and

Appendix A of IS: 456 shall be taken as guideline for durability considerations.

3.14 Trial Mixes

After approval of the mix design by the Engineer, the Contractor shall make in presence of the Engineer the trial

mixes for each grade of concrete as well as for required workability.

Before starting the trial mixes, necessary preparatory works like determination of sieve analysis of the aggregates,

densities of different ingredients, moisture contents in the aggregates, shall be completed according to the relevant

Each trial mix shall be handled and compacted by the method which the Contractor proposes to use for that mix in

the works and the mixes shall not show tendency of inadequate compaction by the method proposed.

The compacting factor and the slump of each trial mix shall be determined immediately after mixing and the values

shall not exceed the maximum value obtained in the mix design.

Five (5) 150 mm test cubes shall be made from each trial mix. These shall be cured and tested in accordance with

relevant BIS codes. In order to have the specified characteristic strength in the field, the concrete mix as designed in

the design mix shall have higher average compressive strength depending on the degree of quality of control at site.

Before commencement of the concreting works of particular grade of concrete, the Contractor must complete the

work of trial mixes and subsequent testing of the test cubes obtained there from and the desire of the approved mix

for that particular grade of concrete.

The entire cost of all the trial mixes including all the preparatory works for trial mixes, preparation of test cubes

and their testing shall be borne by the Contractor.

3.15 Nominal Mix Concrete

Nominal mix concrete may be used for all concrete of grade M-10 and below. If design mix concrete cannot be

used for any reason for grade M-15 and M-20, nominal mix concrete may be used with the permission of the

Engineer. Nominal mix concrete shall be in accordance with Table-3 of clause 8.3 of I S 456. The stipulations of

clauses 8.3.1 and 8.3.2 of IS: 456 shall also be taken into consideration..

3.16 Volumetric Mix Concrete

Where concrete is specified in volumetric proportions such as 1:4:8, 1:3:6, 1:2:4, 1:1.5:3, 1:1:2 etc., in the Bill of

Quantities, coarse & fine aggregates shall be measured by volume & cement by weight. The water cement ratio shall be

within 0.45 & 0.70 depending upon the workability.

3.17 Batching of Concrete

Cement shall always be batched by weight. A separate weighing device shall be provided for weighing

cement. Where the weight of cement is determined by accepting the weight per bag, a number of bags shall be

weighed separately to determine the average net weight of cement per bag and the same shall be checked regularly.

3.17.2 Aggregates:

For both design mix concrete and nominal mix concrete, the aggregates,(coarse and fine) shall be batched by

In particular cases, or where weight-batching is not possible, proportioning by volume batching may be allowed by

the aggregates throughout the period of construction. For this purpose, the Contractor shall submit to the Engineer

sufficient data indicating the weight/volume relationship of the aggregates shall be made by the Contractor to the

satisfaction of the Engineer. Where aggregates are moist and volume batching is adopted, allowance shall be

bulking in accordance with IS (Part III).

Suitable adjustments shall be made for the variation in the weight of aggregates due to variation in their moisture

Water may be measured either by weight or by volume. When measured by volume, it shall be by well calibrated

conical shaped jar or vessel or from a calibrated tank filled to the mixer.

Adjustment of Water Due to Moisture Contents in Coarse and Fine Aggregates It is very important to maintain the

water cement ratio constant at its correct value. For the correct determination of the amount of water to be added

in the concrete mix, to maintain the water cement ratio constant, the amount of moisture content in both coarse

and fine aggregates shall be taken into consideration, be checked as frequently as possible, the frequency for a

given job being determined by the Engineer according to weather condition.

Determination of Moisture Content in the Aggregates

Determination of moisture content in the aggregates shall be according to IS 2386 (Part-III). Where tests are not

conducted, the amount of surface water may be estimated from the following table:

Aggregates Surface water Carried by Aggregates

% by weight l/m3

Very wet sand 7.50

Moderately wet sand 5.00

Moist gravel stone chips* 125.25 20-40

• coarser the aggregate, less the water it will carry

3.18.2 Admixtures

Any solid admixture, to be added, shall be measured by weight, but liquid or semi-liquid admixture may be

measured by weight or volume.

The Bidder shall indicate the brand name, the Manufacturer and the properties of any admixture to be used for

the concrete as per Bill of Quantity items or on his own initiative.

3.18.3 Accuracy of Batching

The accuracy of batching shall be within the following tolerance:

1 Cement within + 2% by weight

2 Aggregate within + 5% by weight

3 Water within + 0.5% by weight.

3.19 Mixing of Concrete

3.19.1 Machine Mixing

Concrete shall always be mixed in mechanical mixer. Water shall not, normally, be charged into the drum of the

mixer until all other ingredients are already in the drum and mixed for at least one minute. Mixing shall be

continued until there is uniform distribution of materials and the mass is uniform in colour and consistency. The

mixing time from the time of adding water shall be in accordance with IS 1791, but in no case less than 2 minutes or

at least 40 revolutions.

3.19.2 Hand Mixing

When hand mixing is permitted by the Engineer, it shall be carried out on a water tight platform and care shall

be taken to ensure that mixing is continued until the mass is uniform in colour and consistency. In case, of hand

mixing, 10% extra cement shall be added to each batch at no extra cost to EMPLOYER,

3.20 Transportation of Concrete

Concrete shall be transported from the place of mixing to the place of placing concrete as rapidly as practicable by

any means, which will prevent the segregation or loss of any of the ingredients and maintain the required

workability. No water shall be mixed with the concrete after it has left the mixer.

Where concrete is transported over long distances, the Contractor shall provide suitable means by which different

grades of concrete are readily identifiable at the place of final deposit.

3.21 Preparatory Works/Surface Preparation

3.21.1 For Concrete Directly on Earth Foundation

Earth foundation on which direct placement of concrete is specified, shall be rammed and consolidated as directed

by the Engineer such that it does not crumble and get mixed with concrete during or after placement. If the

foundation is quite wet, the same shall be kept dry and then sufficiently consolidated, if necessary, a thin top layer

of the wet soil shall be removed and replaced by sand or other suitable materials as directed by the Engineer

without extra cost to EMPLOYER, Care shall also be taken that earth from the sides also does not get mixed with

the concrete, during or after placement, before it has sufficiently set and hardened.

The earth foundation, over which concrete is to be placed directly, shall not be kept abandon at the specified level

and concrete shall be placed immediately following otherwise suitable measures shall be taken, as directed by the

Engineer without extra cost to EMPLOYER.

3.21.2 For Construction Joints

Concrete shall be cast, as far as possible, continuously until the parts of structure to be built are finished. Should

this not be feasible, the type, number and location of construction joints shall be approved by the Engineer prior to

placing concrete.

All such joints shall have continuous square bond grooves to produce substantial and water-tight-key and the

exposed faces of joints shall be monolithic with the main mass of concrete formed and completed under

substantially shattered faces. The Contractor shall take all the necessary steps by means of timber edgings etc. to

ensure an exact horizontal straight finish to outside edge of any lift of concrete. Subject to the approval of the

Engineer, the Contractor is at liberty to arrange his own construction joints but the following restrictions are to be

1. There shall be no vertical construction joints

2. No longitudinal joints shall be made in the walls and floors of trenches and pits unless otherwise shown in

3. Concrete pouring shall be reasonably large, but in no case shall the height of

pouring concrete exceed 1.5 m without the Engineer's firm approval. Such approval of the Engineer shall

not in any way relieve the Contractor of his responsibility to ensure that the construction is water tight

and that no segregation takes place.

4. Laitance shall be removed from the surface of concrete before it has set hard by washing and wire brushing so

as to expose the stones of the top layer without undue erosion of the mortar or damage to the under laying

All beds and joints in concrete faces, which have become set, are to be picked all over and all loose materials

removed before fresh concrete is deposited thereon. The indentations shall be at least 12 mm deep and not less

than seventy five percent of the area of the existing concrete face to be covered over.

Immediately before depositing fresh concrete, the exposed surface shall be cleaned of foreign matter by further

wire brushing, if necessary. It shall then be thoroughly washed and surplus water removed. The surface, while still

moist, shall be covered with layer of 1:1 cement mortar which must be vigorously stippled into the surface by

means of a stiff brush, the depositing of the fresh concrete following on closely. Pockets to form keys shall be left in

the surface of the concrete at constructional joints, 75 mm deep and approximately equal to 20% of the exposed

All costs in connection with the forming of construction joints shall be to the account of the Contractor and shall be

deemed to be included in the rates for concreting and formwork and shall not be separately paid for. In a column,

the joint shall be formed 75 mm below the lowest soffits of the beams, including haunches, if any.

Concrete in a beam shall be placed throughout without a joint but if the provision of a joint is unavoidable, then the

joint shall be vertical and at the center of, or within, middle third of the span, unless otherwise shown on the

3.21.3 On Vertical Surfaces of Masonry

When the concrete is placed on the vertical surface of masonry (as in the case of thin concrete fins projected from

the vertical masonry surface), a groove of dimension as directed by the Engineer shall be cut in the masonry to

ensure a proper bond and the surface shall be cleaned thoroughly. Before the placement of concrete, the surface

shall be kept moist by spraying water at least for the period of 2 hours and a thick coat of cement slurry shall be

applied immediately before the placement of concrete.

Inside the Form Works (Cleaning, Surface Preparation etc.)

The interior of the form works, where the concrete is to be placed, shall be thoroughly washed by high pressure

water jet or air jet to completely clean the entire volume from the dirt’s, grease/oil foreign and deleterious

materials etc. The reinforcements shall be completely cleaned and free from all sorts of dirt’s grease/oil, rust,

foreign/deleterious materials etc. Before placement of concrete, the form works coming in contact with concrete,

shall be coated highly with form oil or raw linseed oily material or provided with any approved material to prevent

adhesion of concrete to the form work, but utmost care shall be taken so that such oily material does not come in

contact with the reinforcement.

3.22 Placing and Compaction of Concrete

Before placing the concrete, the Contractor shall ensure that:

1. All mixing and placing equipment is thoroughly cleaned

2. All concreting space is free from debris and rubbish

3. All forms have been thoroughly wetted or oiled and firmly installed in line and plumb to the Engineer's

4. All reinforcement is cleaned of loose rust, scales and other injurious adherents and is firmly bound and

correctly placed and has been so approved by the Engineer.

5. All inserts, sleeves, foundation bolts and embedded parts have been correctly and firmly installed to conform

to the Engineer's drawings and have been carefully checked to comply with the drawings. Special care shall be

taken to locate and check sleeves or inserts, which may not be symmetrically placed with respect to center

The Contractor and Engineer shall separately inspect and check the above mentioned points and record and sign

the results in a register which shall be maintained by the Contractor in a approved form. No concrete shall be

placed without the Engineer having inspected and approved in writing. In spite of ensuring the above requirements,

the Contractor shall fill pour cards furnishing the necessary details of the job, duly signed by the Engineer. This,

however, will not absolve the Contractor from his responsibility to correctly execute the work. Pour cards shall

contain the following information:

- Work test specimen

- Type of finishing and admixtures used (if any)

- Period of removal of shuttering/props/forms.

a. The concrete pouring method shall be submitted to the Engineer for approval and shall always be such as to

avoid any possibility of segregation of the components or shifting of the reinforcement.

b. Special grout or mix shall be used for difficult and intricate locations as specified by the Engineer. During

placing, the concrete shall be thoroughly worked around reinforcement, embedded parts and corners of the

c. Greatest possible care shall be taken by the Contractor that reinforcement and embedded parts, particularly

foundation bolts and sleeves are not displaced during placement of concrete. While concreting mats and other

such locations where top and bottom reinforcement are adopted, top reinforcement shall be thoroughly

cleaned of all slurry and mortar sticking to them at the time of concreting top layers.

d. The concrete shall be placed and compacted before setting commences and should not be subsequently

disturbed. No water shall be mixed with the concrete after it has left the mixer. Method of placing should be

such as to preclude segregation. Approved mechanical vibrator shall be used for compacting concrete, and

concrete shall not be non-vibrated or under vibrated. No concrete shall be placed until the place of deposit has

been thoroughly inspected and approved by the Engineer, all inserts and embedment properly secured in

position and checked and forms properly oiled. No concrete shall be placed in the absence of the Engineer.

e. Concrete shall be placed on clean bed having the designed level. The bed shall be cleaned of all debris and

other objectionable materials. Seepage water, if any, shall be controlled or diverted.

f. Concreting shall not be carried on during rains unless all precautions have been taken by the Contractor and

necessary permission has been given by the Engineer. Suitable measures shall be taken to control the

temperature of concrete.

g. Where plums are permitted in massive concrete, they shall be washed and carefully placed. No stone shall be

closer than 30 cm to an exposed face, nor nearer than 15 cm to an adjacent stone.

h. Concrete shall not be dropped from a height of more than 2 m except through a chute, the design and type of

which shall be subjected to approval of the Engineer.

i. The concrete shall be placed, spread and compacted by approved mechanical vibrator. Vibrators shall not be

used for pushing concrete to adjoining areas.

j. For members involving vertical placing of concrete (e.g. columns, walls etc.), each lift shall be deposited

in horizontal layer extending for the full width between shuttering and of such depth that each layer can be

easily and effectively vibrated and incorporated with the layer below by means of compaction being employed.

k. For members involving horizontal placing of concrete (e.g., slabs, beams etc.), the concrete shall be placed

along the line of starting point in such quantities as will allow members to be cast to their full

depth along the full width between side shuttering and then gradually brought towards the finishing

point along its entire front parallel to the starting line. Vibration and surface finish shall follow behind the

placement as closely as possible.

l. Utmost care shall be taken to avoid the displacement of reinforcements/ embedded parts or

movement of form work or damage to faces of the form work or transmission of any harmful

vibration/shocks to the concrete which has not yet hardened sufficiently.

m. All members shall be concreted at such a rate that no cold joint is formed and fresh concrete is placed

always against green concrete, which is still plastic and workable.

n. Should any unforeseen occurrence result in a stoppage of concreting for one hour or such other time as might

allow the concrete, already placed, to begin to set before the next batches can be placed, the Contractor shall

make at his own cost, suitable tongue, and groove construction joint, as approved by the Engineer. Any

additional reinforcement required as directed by the Engineer shall also be provided by the Contractor at his

own cost. Before placement of new batches of concrete over that construction joint, the surface preparation

according to this specification stipulated earlier, shall be done by the Contractor.

o. The concrete shall be worked well up against whatever surface it adjoins and compacted to such a degree

that it reaches its maximum density as a homogeneous mass, free from air and water holes and penetrates

to all corners of molds and shuttering and completely surrounds the reinforcement. All measures shall be

taken to make the shape, size, and location of the finished concrete including its embedment, holes, openings

etc., well within the accepted tolerance limit.

3.23 Construction Joints

Normally, the construction joints including crack inducing joints shall be constructed as per locations and details

indicated on the drawings. Where the location of the joint is not specified in the drawings, it shall be in accordance

with the following guidelines. In all construction joints, the reinforcements shall pass through as per drawings and

the same shall not be disturbed in any way.

i) In case of Projection from Basement Slab, 300 mm from the top of base slab or 75 mm from the top of the

haunches whichever is higher.

ii) In framing the beam at different elevation, 75 mm below the lowest soffit of the beam and in case of

projection from beams and slabs 75 mm from the top surface of the beam/slab or at the top surface of

beam/slab whichever facilitates formwork.

iii) For columns below flat slabs, 75 mm below the lowest soffit of the slab.

b) In Walls (Horizontal Construction Joints)

i) For Walls Projecting From Base Slab, 300 mm from top of base slab.

ii) For Walls supporting the suspended slab, 75 mm from the lowest soffit of the slab.

Note: In the case of water retaining structures and structures under the influence of ground water, approved water

bars of suitable size shall be provided to make the joint completely watertight.

Beams shall be cast, as a rule, without a joint. But if provision of a joint is unavoidable, the joints from simply

supported beam shall be vertical and at the middle of the span; in continuous beam, the same shall be at the

point of minimum shear force.

d) In Suspended Slabs

i) In slab of small span, there shall be reconstruction joints.

ii) In slabs of large span and continuous slabs, the Construction joint, if allowed by the Engineer, shall be vertical at

the middle of span and at right angles to the principal reinforcement.

e) In Walls (Vertical Construction Joint)

As a rule, walls shall be cast monolithically without any vertical construction joint, unless specified in the drawing.

However, for a long wall, Engineer may allow vertical construction joint and the same shall be at the place of

minimum shear force.

f) In Slabs Resting on Ground

i) For Plain Concrete

Concreting shall be done in alternate panels not exceeding 10 m2 in area. The largest panel

dimension shall be 5 m.

ii) For Nominally Reinforced Slab The area of pour shall not exceed 40 m2 and the

maximum panel dimension shall not exceed 8m.

iii) For the Basement Slabs Which Act as Structural Member There shall be no

construction joint.

g) In Ribbed Beams The beams shall be monolithic with the slab in one continuous

3.24 Cold Joints:

An advancing face of pour, which could not be covered before expiry of initial setting time for unexpected reasons,

is called a cold joint. The Contractor shall remain always vigilant to avoid cold joints. If however, a cold joint is

formed due to unavoidable reasons, the following procedures shall be adopted for treating it:

1. If the concrete is so green that it can be removed manually and if vibrators can penetrate the surface without much

effort, fresh concrete can be placed directly over the old surface and the fresh concrete along with the old concrete

shall be vibrated systematically and thoroughly.

2. In case the concrete has hardened a bit more than (1), but can still be easily removed by a light hand pick, the surface

shall be raked thoroughly and the loose concrete removed completely without disturbing the rest of the concrete in

depth. Then a rich mortar layer of 12 mm thickness shall be placed on one cold joint and then the fresh concrete shall be

placed on the mortar layer and vibrated thoroughly penetrating deep into the layer of concrete.

3. In case the concrete at the joint has become so stiff that it cannot be remolded and mortar or slurry does not rise in

spite of extensive vibration, a tongue and groove joint shall be made by removing some of the older concrete and the

joint shall be left to harden at least for 12-24 hours. It will then be treated as regular construction joint and the surface

preparation of the same, before placement of concrete, shall be as described in the appropriate clauses of these

specifications.

3.25 Sub-standard concrete

Should the work strength of controlled concrete fall below the specified strength, Engineer shall decide:

1. To reject the work, in which case the Contractor shall replace the defective work with concrete of required

strength and bear all costs for dismantling and replacing including cost of associated form work, reinforcement,

embedded parts & all associated works.

2. To accept the work at a reduced rate, in which case the unit rate payable for sub-standard work will be

reduced by EMPLOYER, directly in proportion to the work strength as compared to the specified strength. The

Engineer may, in addition, require other tests performed on the respective structural member so accepted

period to its acceptance with or without necessary corrective measures and in each such case, the Contractor

shall bear all costs for all such tests or corrective measures, besides the reduction in the unit rates as specified

3. Concrete of strength below fifteen (15) percent of the specified strength will not be

4. The test load shall be 125% of the maximum superimposed load for which the structure was designed. Such

test load shall not be applied before 56 days after the effective hardening of concrete. During the test, struts

strong enough to take the whole load shall be placed in position leaving a gap under the members. The test

load shall be maintained for 24 hours before removal.

5. If, within 24 hours of the removal of the load, the structure does not show a recovery of at least 75% of the

maximum deflection shown during the 24 hours under load, the test loading shall be repeated after a lapse of

At least 72 hours. The structure shall be considered to have failed to pass the test if the recovery after the

second test is not at least 75% of the maximum deflection shown during the second test. If the structure is

certified as failed by the Engineer, the cost of the load test shall be borne by the Contractor.

3.26 Optional Tests

The Engineer, if he so desires, may order tests to be carried out on cement, sand, coarse aggregate, water in

accordance with the relevant Indian Standards.

Tests on cement shall include

1. Fineness test

2. Test for normal consistency

3. Test for setting time

4. Test for soundness

5. Test for tensile strength

6. Test for compressive strength

7. Test for heat of hydration (by experiment and by calculation) in accordance with IS:269.

Tests on sand shall include

2. Test for organic impurities.

3. Decantation test for determining clay and silt content.

4. Specific gravity test.

5. Test for unit weight and bulk age factor.

6. Test for sieve analysis and fineness modulus.

Tests on coarse aggregates shall include

1. Sieve analysis.

2. Specific gravity and unit weight of dry, loose and rodded aggregate.

3. Soundness and alkali aggregate reactivity.

4. Petrographic examination.

5. Deleterious materials and organic impurities.

6. Test for aggregate crushing value.

Any or all these tests would normally be ordered to be carried out only if the Engineer feels the materials are not in

accordance with the specifications or if the specified concrete strengths are not obtained and shall be performed by

the Contractor at an approved test laboratory at the cost of the Contractor. If the work cubes do not give the

stipulated strengths, the Engineer reserves the right to ask the Contractor to dismantle such portions of the work

which, in his opinion, are unacceptable and re-do the work to standards stipulated, at the Contractor's cost. The

unit rate for concrete shall be all inclusive, including making preliminary mix design and test cubes works, cubes,

testing them as per specification, slump tests, optional tests etc.,

3.27 Concrete for Equipment or steel structures foundations:-

Concrete for equipment foundation, whether principal or auxiliary, shall be poured continuously so that the

structure becomes monolithic, particular care being exercised to see that the base slabs, if any, are of compact

impervious construction. Tunnels, passages, apertures and so forth shall be provided in accordance with the

drawings for the installation of mechanical and electrical equipment, pipes or cables. The top elevation of the

equipment foundations or parts shall be accurately cast to 20/50 mm (or more as may be specified on the

drawings) above the level required for grouting and it shall be pneumatically chiseled off and well roughened just

prior to the erection of the equipment concerned. All embedded anchor bolts or bolt sleeves shall be accurately and

firmly set with the aid of approved templates, steel supports and/or other accessories. For holding the embedded

bolts or sleeves in the correct position during concreting, template shall have to be of steel of suitable section

approved by the Engineer. Two sets of templates shall have to provided, one to hold the bottom and the other the

top of the bolts or sleeves. The bottom template shall be securely and rigidly fixed by providing anchorage

arrangement and by welding to the lowest part of the steel reinforcement and other structural supports. The top

templates shall be securely fixed by tying with guy wires and turn buckle arrangements to firm and rigid adjoining

structures and staging. The bottom template that is embedded in concrete will be measured and paid for as

embedded steel. Bolt pockets, where required, shall be cast with wooden taper wedges. These shall be

withdrawn at an appropriate time when the concrete has set, the pockets cleaned, roughened and then covered

or blocked thoroughly to prevent debris getting into these. The exposed portions of bolts and embedded parts shall

be kept well-greased and adequately protected from damage throughout construction. Any damages found shall

have to be corrected at the Contractor's cost. EMPLOYER, shall have the right to use the foundations, pads, piers,

slabs, floors and all concrete work as needed for other works or equipment erected prior to its "Taking Over".

3.28 Requirements for Concreting in Special Cases

3.28.1 Concreting in Deep Lifts

3.28.2 Concreting Under Water

3.28.3 Cold Weather Concreting

3.28.4 Hot Weather Concreting

3.28.5 Concreting in Large Pours (Mass Concrete)

3.29 Finishes to Exposed Surface of Concrete

The Contractor is to include his quoted rate for concrete, the provision of normal finishes in both formed and

unformed surfaces as and where required by the Engineer without any extra cost to EMPLOYER, Some

common finishes are indicated below:

3.29.1 Surfaces which do not Require Plastering

Surface in contact with casing shall be brought to a fair and even surface by working the concrete smooth

against casings with a steel trowel while it is being deposited and also by working over the surface with a trowel

immediately after the removal of the casings or centering, removing any irregularities and stopping air holes, etc.

Use of mortar plaster is not permissible for correcting levels, removing unevenness etc. However, if in the opinion

of the Engineer, such plastering is unavoidable, then the thickness of plaster shall in no case exceed 5 mm and the

plastering shall be in CM (1:3).

3.29.2 Faces of Foundations which will be Back Filled

Neither the smoothness of the surface not the positions of the joints in the form work are important. Small

blemishes caused by entrapped air are permitted. No special surface finish is required.

3.29.3 Exposed Surfaces

Surface of beams/columns flushing with the block work or other structures where it is intended to plaster, shall be

backed adequately as soon as the shuttering is stripped off so that proper bond with the plaster can develop.

3.29.4 Surface for Non-integral Finish

Where a non-integral finish such as floor finish is specified or required, the surface of the concrete shall be struck

off at the specified levels shall be furnished and finished rough.

3.29.5 For Monolithic Finish

Where no more finishing course is to be supplied as in the case of basement floor, industrial flooring or the screed

concrete flooring etc., the concrete shall be completed and struck off at the specified levels and slopes in a screed

board and then floated with a wooden float. Steel trowel ling is then started after the concrete has hardened enough

to prevent the excess of fines and water to rise to the surface but not hard enough to prevent proper finishing.

Trowelling shall be such that the surface is flat, smooth and neatly finished.

3.30 Curing of Concrete

The purpose of curing is either to provide sufficient water at optimum temperature or to prevent loss of moisture

from the concrete itself so that the cement inside the concrete is sufficiently hydrated which, of course, is a slow

and prolonged process. As soon as the concrete has hardened sufficiently, the curing shall be started.

3.30.2 Different Methods of Curing

Any one of the following may be used for curing as approved by the Engineer.

a) Curing by Direct Water

This is done either by pounding or spraying water.

Ponding is widely used for curing slabs and pavement. Earth bands are formed over the slabs and water is pumped

or poured into them and the same is replenished at interval to make up for the loss of evaporation. As this type of

curing is one of the best methods, 10 days of curing after final setting is sufficient.

By Spraying Water Curing is done by spraying water by suitable means at approved time intervals. While spraying,

it shall be ensured that the complete area is covered. In order to avoid cracking, cold water shall not be applied to

massive members immediately after striking the form work, while the concrete is still warm.

Alternative wetting and over drying shall be avoided.

Curing by spraying water shall be continued atleast for 18 days.

a) Curing of Concrete with Absorbent Material Kept Damp The entire concrete surface is covered either with hessian,

burlap, sawdust, sand, canvas or similar material and kept wet continuously for at least 12 days after final settings.

b) Curing by Covering Concrete Surface with an Impressive Sheet This is achieved by covering the entire concrete

surface with water proof paper or plastic sheets specially manufactured for this purpose. The waterproof papers are

stuck together by adhesive compound and the plastic sheets can be welded at site. Such type of covering shall be

kept at least for 24 days after the final setting. It is preferable to have sheet as white in appearance since the white

colour will reflect hot sunrays and keep the concrete temperature at reasonable level.

c) Curing by Providing Protective Membrane by Applying curing compound This is achieved by applying a membrane

forming compound (curing compound) over the concrete surface. Generally, these are available in the emulsion

form. The application of the curing compound should be started immediately after stripping off the shuttering in

case of formed surface and after the surface has hardened in case of unformed surface.

The curing compound membrane forming emulsions dry up within 3 to 4 hours after application and forms a

continuous coherent adhesive membrane over the concrete surface. Such membrane serves as a physical

barrier to prevent the loss of moisture from the concrete itself. Membrane forming emulsions are generally

coloured black or white to improve visibility for ensuring uniform application. Black colour shall never be used

for curing in very hot weather. In order to prevent glare, a colouring pigment may be added to white

compounds. Black curing compounds are either Bituminous or Asphaltic emulsions and shall be used to

surfaces which are to be covered by back filling or on the floor which is to be covered with tiles and linoleum.

White curing compound shall be used for the surfaces of tall structures under exposure of hot sun where

other method of curing can not be properly ensured.

d) Curing by Chemical Coating For chemical curing, sodium silicate or calcium chloride is used. The use of calcium

chloride shall be done with the approval of the Engineer. Normally, the sodium silicate mixed with water is applied

over concrete surface and, when it dries up, it forms a thin varnish like film, which fills up the pores, and surface

voids and prevents evaporation of water. This also acts like curing compound but only difference is that curing

compounds are available in ready mixed emulsion forms while sodium silicate is to be mixed with water at site.

3.30.3 Limitation to Use of Different Methods of Curing

i) Curing by the processes as indicated in Section B – Clause 3-24 and more specifically as per sub-clause 2(b) of

the above clause gives very good results in normal warm climate for maturity of concrete. ii) In cold weather, the

process as indicated in sub-clause 2(b) of clause 3-24 gives very good result for maturity of concrete. iii)

Where water cement ratio is less than 0.5, the methods indicated in sub-clause 2(d) and 2(e) of clause 3-24 of

Section B, shall not be used. iv) In warm climate also, where the methods of curing as indicated in sub-

clauses 2(a) and 2(b) of clause 3-24 cannot be properly ensured, any suitable method of curing as indicated

in subclasses 2(c) to 2(e) of clause 3-24 of Section B, as approved/directed by the Engineer, shall be

3.31 Testing of Concrete

The Contractor shall carry out, entirely at his own cost, all sampling and testing in accordance with the

relevant IS standards and as supplemented herein. The Contractor shall get all tests done in an approved

laboratory and submit to the Engineer, the test result in triplicate within 3 days after completion of the test.

3.31.2 Consistency Test (Tests of Fresh Concrete)

At the place of deposition/pouring of the concrete, to control the consistency slump tests and/or compacting

factor tests shall be carried out by the Contractor in accordance with IS 1199 as directed by the Engineer.

The results of the slump tests/compacting factor tests shall be recorded in a register for reference duly signed by

both the Contractor and the Engineer. That register shall be considered as the property of EMPLOYER, and shall be

kept by the Contractor at site in safe custody.

The results of the slump tests/compacting factor tests shall tally, within accepted variation of 12%, with the results

in the respective design mix, in case of mix design concrete and with the values indicated in the table under clause

6.1 of IS:456 in case of nominal mix concrete. For any particular batch of concrete, if the results do not conform to

the requirements as specified in IS 456, the Engineer has the right to reject that batch and the Contractor shall

remove the same immediately from the site, at no cost to EMPLOYER,.

3.31.3 Strength Test of Concrete

While placing concrete, the Contractor shall make six (6) 150 mm test cubes from particular batches of

concrete as desired by the Engineer. The frequency of taking test cubes shall be either according to clause

14.2 of IS:456 or as directed by the Engineer.

The cubes shall be prepared, cured and tested according to IS 516. Out of the six (6) test cubes, 3 shall be tested for

compressive strength at 7 days after casting and the remaining 3 at 28 days after casting A register shall be

maintained at site by the Contractor with the following details entered and signed by both the Contractor and the

Engineer. That register shall be considered as the property of EMPLOYER,

a) Reference to the specific structural member

b) Mark on cubes

c) The grade of concrete

d) The mix of concrete

e) Date and time

f) Crushing strength at 7 days

g) Crushing strength at 28 days

h) Any other information directed by the Engineer.

3.31.4 Acceptance Criteria for Test Cubes

The acceptance criteria of concrete on strength requirement shall be in accordance with the stipulations under clause

3.31.5 Non-destructive Tests on Hardened Concrete

If there is doubt about the strength or quality of a particular work or the test results do not comply with the

acceptance criteria as stipulated under clause 15 of IS:456, non-destructive tests on hardened concrete like core

tests and/or load tests or other type of non destructive tests like ultrasonic impulse test etc. shall be carried out, as

may be directed by the Engineer, by the Contractor at entirely his own cost.

The core tests and load tests shall comply with the requirements of clause 16.6 of IS:

3.31.6 Concrete Below Specified Strength

In case of failure of test cubes to meet the specified requirements, the Engineer may take one of the following

1. Reject the work and instruct that section of the works to which the failed cubes relate shall be cut out

and replaced at the Contractor's expense.

2. Instruct the Contractor to carry out additional tests and/or works to ensure the soundness of the structure at the

Contractor's expense.

3. Accept the work with reduction in the rate in appropriate item.

3.31.7 Concrete failed in Non-destruction Tests

In case test results of the core tests or load tests in a particular work do not comply with requirements of respective

clause (16.3 for core test and 16.5 for load tests) of IS 456, the whole or part of the work concerned shall be

dismantled and replaced by the Contractor as may be directed by the Engineer at no extra cost to EMPLOYER, and

to the satisfaction of the Engineer. No payment for the dismantled concrete including relevant form work,

reinforcement, embedded fixtures etc. shall be made. In the course of dismantling if any damage occurs to the

adjacent structure or embedded item, the same shall be made good, free of charge by the Contractor, to the

satisfaction of the Engineer.

3.32 EXPANSION JOINTS

Expansion joints shall be provided where shown on the drawings or as directed by Consultant. They shall be

constructed with an initial gap between the adjoining parts of the works of the width specified in the

The contractor shall ensure that no debris is allowed to enter expansion joints Expansion joints shall be provided as

per drawings. Contractor shall ensure that expansion joints are made water-tight and that no leakage occurs

through these joints for which he shall be responsible to redo at his own cost.

3.32.2 OPEN JOINT FILLERS

Where shown on the drawings, open joints in the structure shall be filled with joint fillers.

The joint filler shall be easily and uniformly compressible to its original thickness, tampable, easily cut or sawn,

robust, durable, resistant to decay due to termite or weathering, unaffected by water and free of any constituent

which will bleed into or stain the concrete.

The joint filler shall be of same thickness of the joint width, it shall extend through the full thickness of the concrete

unless otherwise specified and shall be sufficiently rigid during handling and placing to permit the formation of

straight joints

3.32.3 JOINT SEALING COMPOUNDS

Joints sealing compounds shall seal joints in concrete against the passage of water prevent the ingress of grit or

other foreign material and protect the joint filler. The compound shall have good extensibility and adhesion to

concrete shall have good extensibility and adhesion to concrete surfaces and shall have resistant to flow and

weathering. Polysulphide joints where specified on the drawings shall be seated with polysulphide liquid polymer,

stored, mixed handled, applied and cured strictly in dimensions, thoroughly cleaned and treated with

recommended primer strictly in accordance with the manufacturer’s written instructions prior to sealing. The

Contractor shall use only competent personnel experienced in the application of polysulphide for such work.

Where specified in the drawings, rubber/bituminous based sealant shall be of an approved manufacturer. The

treatment of the joint and the use of sealing compound shall be strictly in accordance with the manufacturer’s

written instructions.

3.32.4 WATER BARS

Where water bars are shown on the drawings, the joints shall incorporate an approved PVC external type

water-bar complete with all necessary molded or prefabricated intersection pieces assembled in accordance with

the drawings with bends and butt joints in running lengths made by heat welding in an electrically heated

Jointing and fixing of water-bars shall be carried out strictly in accordance with the manufacturers written

The water-bars shall be installed so that they are securely held in their correct position during the placing and

compacting of the concrete.

Where reinforcement is present adjacent to water-bars, adequate clearance shall be left between the

reinforcement and water-beds to facilitate of the concrete.

If any cracks develop in the reinforced cement concrete construction which in the opinion of the Consultant may be

detrimental to the strength of the construction, the contractor at his own expense shall test the structural

element in question If under these test loads the cracks shall develop further the contractor at his own expense

shall dismantle the construction, cart away the debris, replace the construction and carry out all consequential

work there to at no extra cost.

If the cracks are not detrimental to the stability of the construction in the opinion of the Consultant, the contractor

at his own expense shall grout the cracks with pneumatically applied mortar. At his own expense and risk he shall

also make good all other building works such as plaster, molding, surface finish of floods, roofs, ceiling etc. which in

the opinion of the Consultant have suffered damage either in appearance or stability owing to such cracks.

The repair work shall be carried out to the satisfaction of the Consultant/Project-in-charge. The decision of the

Consultant/Project-in-charge as to the extent of the liability of the contractor in the above matter shall be final and

binding on the contractor.

3.34 SUPERVISION

All concreting work shall be done under strict supervision of the qualified and experienced representatives of the

Contractor as well as those of the Consultant The contractor’s Engineer and supervisor who are incharge of

concreting work shall be skilled in this class of work and shall personally supervise all the concreting operations.

Special attention shall be paid to the following:-

(a) Proportioning, mixing and quality testing of the materials with particular control on the water cement

(b) Laying of material in place and thorough compaction of the concrete to ensure solidity and freedom from

voids and honey combing.

(c) Proper curing for the requisite period.

(d) Reinforcement and inserts/embodiments position are not disturbed during concreting and

consolidation by vibration.

3.35 QUALITY CONTROL

The Consultant/Project-in-charge reserves the right to make changes in the mix proportions including the

increased cement content or/and a change in the Contractor’s control procedure, should the quality control during

progress of the works prove to be inadequate in his opinion. All the concrete work shall be true to level, plumb

and square within the acceptable tolerance. The corners, edges and rises in all cases shall be unbroken and finished

properly and carefully.

3.36 TOLERANCES

The acceptable tolerances for formed concrete surfaces shall be given below: -

a) Variation from plumb for -

i. Columns and walls to be rendered 6 mm in 3 meters

ii. Exposed columns and walls 3 mm in 3 meters

b) Variation in cross sectional dimensions of columns and beams and in the thickness of slabs and walls: -

All the works executed beyond the tolerance limits are liable to be rejected and no extra cost shall be paid to the

contractor for reconstructing the same as desired by the Consultant/Project-in-charge.

3.37 TESTING ROOM

A testing room of not less than 10 sq.m. equipped with the following apparatus and qualified concrete technician,

labor and materials required for carrying out tests therein shall be provided by the contractor at his own cost:

1. Sieve Set (For aggregate 20 mm down)

40 mm, 20 mm, 16 mm, 12.5 mm, 10 mm, 4.75 mm, 600 micron, 300 micron, and 75 micron having

diameter of 45 cms.

a) Physical balance cap. 200 gms with weigh box (accuracy 0.5 gm)

b) Counter Scale cap 20 Kg

5 kg 1 No 500 gms 1 No.

2kg 2 Nos. 200 gms 1 No.

1 kg 1 No. 100 gms 1 No.

3. Slump Cones 2 Nos

4. 15 cms moulds 18 no.

5. Electric/Kerosene Heater

6. Pans etc. as directed by the Consultant

7. Measuring Cylinders of 1000 ml., 500 ml and 100ml.

8. Wash bottles of the Capacity of 500 ml., 2 Nos.

10. Work benches, shelves, desks and any other furniture and lighting as required by the

11. Spring balance dial type cap. 100 kg

12. Liter measures

a) 10 Lit 1 No.

e) 1/2 Lit 1 No.

13. Cube Testing Machine 100 Tons.

15. Cores/ Apparatus for conducting Proctor Density Tests.

3.38 CO-ORDINATION OF WORK

The contractor is fully responsible for coordinating with the other agencies for sanitary, electrical work, etc. to

ensure execution of their work related to commencement of concreting. Nothing extra shall be payable to the

contractor, if the works pertaining to concreting have to be dismantled and redone due to lack of co-

ordination on the part of the contractor in ensuring completion of works of such agencies before concreting had

been undertaken.

4 SPECIFICATIONS FOR STEEL REINFORCEMENT

4.1.1 DESCRIPTION

This section covers the requirements for fabricating, delivering and placing of steel reinforcement in position for

casting all types of concrete work

4.1.2 RELATED WORK SPECIFIED ELSEWHERE

Applicable Codes and Standards:

The codes and standards generally applicable to the work in this sections are listed below: - IS:

280 Mild wire for general engineering purpose

IS: 432 Part I Mild steel and medium tensile steel bars Part II Hard drawn steel wire IS:

456 Code of practice for plain and reinforced concrete

IS: 1139 Hot rolled mild steel, medium tensile steel and high yield strength steel deformed bars for

concrete reinforcement

IS: 1566 Hard drawn steel wire fabric for concrete reinforcement

IS: 2502 Code of Practice for bending and fixing of bars for concrete reinforcement

The following clauses are intended to amplify the requirements of the reference documents listed above and the

contractor/Project-in-charge shall comply with these clauses.

4.2.1. BAR BENDING SCHEDULE

The Contractor shall prepare Bar Bending Schedule for reinforcement before fabrication

4.3.1 STEEL REINFORCEMENT

Steel reinforcement to be procured by the Contractor for works shall be either of the following types:-

(a) Mild steel of Grade 1 tested quality conforming to IS: 432-Part-

(b) 3370 Code of practice for concrete structures for (Part I to IV) the storage of liquids

(c) High yield strength cold worked deformed steel bars of tested quality conforming to IS: 1786 or hot rolled high

tensile deformed steel bars of tested quality conforming to IS:

(d) Hard drawn steel fabric conforming to IS:

(e) Where galvanized reinforcement is specified in the drawings, the bars or mesh shall be hot-dip galvanized after

bending generally in accordance with IS: 2629 and IS: 4759. Galvanized reinforcement shall be coated with a layer of zinc

no where less than 0.05 mm in thickness.

All reinforcement shall be stored horizontally above ground level on supports, skids or other approved supports,

clear of any running or standing water. Contact with soil should be avoided. Proper drainage and protection from

the elements shall be provided to minimize corrosion.

Before steel reinforcement is placed in position, the surface of the reinforcement shall be cleaned of rust, dust,

grease and other objectionable substances. In order to confirm the quality periodical tests as specified as the

relevant IS shall be conducted by the contractor at his own cost.

4.3.2. BINDING WIRE

Binding wire shall be black annealed steel wire conforming to IS: 280 and of minimum 18 gauge.

4.3.3. WELDING ELECTRODES

Electrodes used for welding of steel bars shall be of ordinary mild steel grade electrodes conforming to IS: 814 and

shall be of the best quality approved by Consultant/Project-in-charge.

Reinforcement steel shall be handled and stored in a manner that bending or distortion of the bars is avoided and

contamination of steel is prevented.

All reinforcement shall be stored horizontally above ground level on supports, skids or other approved supports,

clear of any running or standing water Contact with soil should be avoided. Proper drainage and protection from

the elements shall be provided to minimize corrosion Bars of different classifications and diameters shall be stored

separately A record shall be kept of the batch numbers of reinforcement deliveries in such a form that the part of

the works in which particular reinforcement is used can be readily identified. Welding electrodes shall be stored in

moisture control-led environment in accordance with the manufacturer’s recommendations.

4.5 FABRICATION

Reinforcement steel shall be carefully and accurately cut, bent or formed to the dimensions and configurations

shown on the drawings and as per bar bending schedules approved by the Consultant / Project- in-charge. All