Standard Specifications for Building Works(DRAFT-FINAL)

8/11/2019 Standard Specifications for Building Works(DRAFT-FINAL)

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His Majesty's Government of Nepal

MINISTRY OF PHYSICA PANNING AN! "OR#S

!$PARTM$NT OF %R&AN !$$OPM$NT (

&%I!ING CONSTR%CTION

STAN!AR! SP$CIFICATIONSFOR &%I!ING "OR#S

FAG%N) *+,- . F$&R%ARY) *++/


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This Standard Specifications for Building works is the copy of thedocument approved by His Majesty's Government of epal! Ministry of"hysical "lanning and works on #insert date$%

0Name1

#&esignation$

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"()*+(

The "resent document ,Standard Specifications for Building works, is the--------------%%% This document is the outcome---------%% reviewed by the --------------%%% Thecomments! interactions and e.periences shared by (ngineers and e.pertshave been incorporated%

&ue to lack of revision and upgrading of the prevailing StandardSpecifications! there are difficulties in performing /ualitative works% Hence! 0hope this document will solve the problem to perform /ualitative work%

Hence! 0 am fully confident that these Specifications will lead the departmentof 1rban &evelopment 2 Building +onstruction to achieve more /ualitativeworks%

&irector General&epartment of 1rban&evelopment 2 Building

+onstruction

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A23no4le56ements*cknowledgements are made to the following publications and documents which have been consulted during reviewing ofthese Specifications Building works%

3% The Bureau of 0ndian Standard 4B0S5 Hand book 63778

9% The British Standards 0nstitution 4BS05 +atalogue 6 9:::;% *nnual Book of *STM Standards % 0S +odes

?% BS +odes

8% Technical Specifications of T1TH! +old @ard Building +onstruction "roject

A% epal Standards

=% Standard Specifications )or oads 2 Bridge @orks

Notes7

435 0n these Specifications references are made to various codes% 0n case of their disagreement!

when referred to! they shall be in the hierarchy as given below%

4i5S 4iii50S 4iv5BS 4v5*STM 4vi5 thers

495 0f any works are not covered under these Standard Specifications or re/uire modifications

to some of the Specifications! appropriate specifications or modifications to the relevant

Standard Specifications may be drafted in Special Specifications to suit the nature of the

works% Such specifications or modifications shall need approval by the &irector General of the

&epartment of 1rban &evelopment 2 Building +onstruction! before they are implemented%

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Ta8le of Contents

CHAPT$R -

-++ G$N$RA

3:3 &efinitions

3:9 +ontractorCs ffice 2 *ccommodation

3:; ffice )or (ngineer

3:> Safety Measures

3:? otice Boards

3:8 Temporary )acilities

3:A "ublicly *nd "rivately wned Services

3:8 0nsurance f @orks

3:A (nvironmental "rotection @orks

3:= Survey *nd Setting ut

3:7 *s6Built &rawings33: "hotographs

333 Supply f Duality *ssurance "lan

;:? Testing "rocedures *nd Set f Tests

;:8 Eaboratory Trials To +onfirm +ompliance @ith Specifications

;:A Site Trials r Trials Sections;:= +ontrol Testing &uring +onstruction

;:7 *cceptance Tests )or +ompleted @orks r "art f @orks

;3: ecapitulative Schedule f Tests

;33 +ontractor's Eaboratory

;39 Eaboratory (/uipment at Site

;3; Sampling and Testing of Material away )rom Site

;3> Survey and Setting

;3? 1se of the +ontractor's Temporary @orks

;38 "rovide and "lace Earge "ermanent Signs and Markings

;3A &ay work

;3= eports

;37 Site &iary

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CHAPT$R ;

;++ MAT$RIAS AN! T$STING OF MAT$RIAS

>:3 Scope

>:9 Duality f Materials

>:; Sources f Materials

>:> 0nspection *nd *cceptance f Materials

>:? Materials *nd Manufactured *rticles

>:8 &efective Materials

>:A Trade ames *nd *lternatives

>:= )oreign Materials

>:7 &efinition f General types f Materials

>3: Sieves

>33 Soils *nd Gravels

>39 Stone! *ggregate! Sand *nd )illers

>3; +ement

>3> Eime

>3? Eime Treated Materials

>38 +oncrete

>3A einforcing Steel

>3= Testing f @elds

>37 "aints )or Structural Steelwork

>9: Bricks

>93 Mortar

>99 einforced +oncrete "ipes

>9; High &ensity "olythene "ipes

>9> Geote.tiles>9? Timber )or Structural @orks

>98 Manhole +overs *nd )rames

>9A "re6cast +oncrete +hannels >63:

>9= +ast 0ron &rainage Gratings >63:

>97 Measurement *nd "ayment >63:

CHAPT$R /

/++ $ARTH"OR#S

?:3 Scope

?:9 &efinitions *nd General e/uirements

?:; (arthwork 0n (.cavation 0n )oundation

?:> (.cavation )or )ormation f "linth f Building *nd "arking @orks

?:?% Backfill

?:8% Transportation *nd Handling f (.cess &isposable Material

CHAPT$R ,

,++ CONCR$T$ "OR#

8:3 Scope

8:9 &efinitions

8:; Materials )or +oncrete

8:> The &esign f +oncrete Mi.es8:? Mi.ing +oncrete

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8:8 Transportation f +oncrete

8:A "lacing f +oncrete

8:= +ompaction f +oncrete 8633

8:7 +uring f +oncrete 8639

83: "rotection f )resh +oncrete 8639

833 +oncreting 0n Hot @eather 8639

839 +onstruction Foints 863;

83; ecords f +oncrete "lacing 863;

83> einforcement 863>

83? +oncrete )or Secondary "urposes 863?

838 (arly Eoading 8638

83A Measurement 8638

83= "ayment 863A

CHAPT$R ++ FORM "OR#7:3 Scope *nd &efinitions

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7:9 General

7:; )ormwork )or +oncrete

7:> Surface )inish n )ormed Surfaces

7:? )inishes n 1nformed Surfaces

7:8 emedial @ork To &efective Surfaces

7:A Measurement

7:= "ayment

CHAPT$R -+ -+?-

-+++ "OO! "OR#

3::3 Scope 3:63

3::9 Material 3:63

3::; +arpentry and Foinery 3:69

3::> Beams Eintel! afters! "urlins! @all "lates! "ost+olumn 3:6>

3::? &oors and @indows )rames 3:6>

3::8 @ooden &oor and @indows )rame 3:6>

3::A @ooden @indow Shutters 3:68

3::= Glaed @indow Shutters 3:68

3::7 @ooden "aneled &oor Shutters 3:6=

3:3: @ooden Solid +ore &oor Shutters 3:6=

3:33 @ooden +arving &oor and @indows )rame *nd Shutters 3:67

CHAPT$R -- --?-

--++ PAST$R AN! POINTING "OR#

33:3 Scope 3363

33:9 Material 3363

33:; +onstruction "rocedures 336333:> "unning *nd "ointing @orks 3369

33:? Measurement 336;

33:8 "ayment 336;

CHAPT$R -* -*?-

-*++ PAINTING

39:3 Scope 3963

39:9 &elivery and *pplication of "aintI 3963

39:; "reparation and priming of surfacesI 3963

39:> +olors and "rimingI 3963

39:? +ement "aint 3969

39:8 (namel "aint 396;

39:A @ashable &istemper 396;

39:= "lastic (mulsion "aint 396;

39:7 Bituminous *luminum "aint 396;

3;:7 ed Eead "rimer 396;

393: +hapra "olish 396;

3933 "olyurethane "aint 396>

3939 @hite @ashing 396>

393; Measurement 396>

393> "ayment 396>

CHAPT$R -9 -9?-

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-9++@ FOORING

3;:3 Scope 3;63

3;:9 +oncrete )looring 3;63

3;:; )lag Stone )looring 3;63

3;:> "lain and +olored ceramic Tiles 3;69

3;:? Marble )loor 3;6;

3;:8 Terrao Tiles )looringI 3;6;

3;:A 0n skirting! risers etc 3;6;

3;:= Glaed @all tiling 3;6;

3;:7 on Slippery Tiles in )looring 3;6;

3;3: Timber )looring 3;6>

3;33 Telia Tile 3;6>

3;39 Marble )looring 3;6>

3;3; "olythene Sheeting 3;6>

3;3> "aving! Skirting etc 3;6>

3;3? )loor Hardener 3;6?3;38 "olythene "olythene sheets 3;6?

3;3A &amp "roof +ourse 3;6?

3;3= Measurement 3;68

3;37 "ayment 3;68

CHAPT$R -; -;?-

-;++ ROOFING "OR# AN! FAS$ C$IING "OR#

3>:3 +lay Tiles 3>63

3>:9 idge and 63

3>:; *sbestos +ement oofing 3>63

3>:> einforced +ement +oncrete oofing 3>69

3>:? Galvanied +orrugated 0ron Sheet 4+G0 Sheet5 oofing and idge and69

3>:8 Slate oofingI 3>69

3>:A @ater "roofing for +oncrete oofs 3>6;

3>:= @ater "roofing for Tiled oofs 3>6;

3>:7 Eaying Tar )elt Sheets 3>6>

CHAPT$R -/ -/?-

-/++ C$IING "OR#S

3?:3 *coustic +eiling 3?63

3?:9 Gypsum board +eiling 3?63

3?:; Marine Board +eiling 3?69

CHAPT$R -, -,?-

-,++ STR%CT%RA ST$$ "OR#

38:3 General 3863

38:9 Materials 3863

38:; )abrication I General e/uirements 3863

38:> )abrication f Bolted Structures 386A

38:? +astings *nd Heat Treatment 38633

38:8 @elded +onstruction 3863938:A )ield (rection e/uirements 3863?

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38:= *ssembling *nd Bolting 38638

38:7 "rotection *gainst +orrosion 3863A

383: Measurement 38693

3833 "ayment 38693

CHAPT$R -< -


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CHAPT$R -

-++ G$N$RA

The @ork shall be carried out according to these Specifications whether specifically mentionedelsewhere or not% o e.tra in any form will be paid unless it is definitely stated as an item in the Bill of

Duantities%@henever the Specifications are not given or when the Specifications are ambiguous! the relevant0ndian Standards or British Standards and further amendments will be considered as final andbinding%

*ll @orks shall be carried out simultaneously with electrical! plumbing! sanitary and other servicesand in co6operation with the +ontractors the above services% The @ork shall be carried on till it iscompleted satisfactorily along with the completion of other essential services% The building +ontractorshall keep the other +ontractors informed of the proposed program of @ork! well in advance! so thatthe building @ork is not hindered% The +ontractor shall further cooperate with other +ontractors inrespect of any facility re/uired by them e%g% making holes in shuttering for sanitary! pipes! electricconduits! fan hook etc% However! no e.tra payment shall be admissible to him for such reasonableassistance and facilities afforded to other +ontractors and the building +ontractors shall be deemed tohave taken these factors into consideration while /uoting his rates%

The @ork shall be related to the drawings which the +ontractor is presumed to have studied% othinge.tra will be paid for any item because of its shape! location or other difficult circumstances! even ifthe schedule makes no distinction! as long as the item is shown in the drawings%

The sources of materials stated in the Specifications are those from which materials are generallyavailable% However! materials not conforming to Specifications shall be rejected even if they comefrom the stated sources% The +ontractor should satisfy himself that sufficient /uantity of materials ofacceptable Specification is available form the stated or other sources%

The re/uirements of Specifications under 4*5% G((*E 4B5% M*T(0*ES shall be fulfilled by the+ontractor without e.tra charges i%e% the item rates /uoted shall be deemed to have taken theseSpecifications into account%

These are re/uirements the +ontractor shall fulfill after the issue of Eetter of *cceptance but beforethe &ate of +ommencement%

-+- !$FINITIONS

a General

A22epta8le.Approve5 BApproval6 *cceptable toapproved 4approval5 by the (ngineer%

A6ree56 *greed in writing%

As 5etaile56 *s detailed on the drawings%

AtDoriEe5.or5ere5.reje2te5 6 *uthoriedorderedrejected by the (ngineer%

!esi6nate56 Shown on the drawings or otherwise specified by the (ngineer or! in relation toan item scheduled in the bid documents! descriptive of an item to be priced by a bidder%

In5i2ate56 0ndicated in or reasonably to be inferred from the contract! or indicated in writingby the (ngineer%

Instr2te5.5ire2te5.permitte5 60nstructeddirected permitted by the (ngineer%

Satisfa2tory6 +apable of fulfilling or having fulfilled the intended function%

Servi2e6 *ny pipeline! cable! duct etc% for conveying or transmitting any fluid or other matter%

S8mitte56 Submitted with the tender or submitted to the (ngineer! as appropriate%

8 Toleran2es

!eviation 6 The difference between the actual 4i%e%! measured5 sie or position and thespecified sie or position%

Permissi8le 5eviation6 The specified limit4s5 of deviation%

Toleran2e6 The range between the limits within which a sie or position must lie%

2 Measrement an5 Payment

&ill.s2De5le6 The billschedule of /uantities%&ille5.s2De5le5 rate 6 The unit rate or price entered in the billschedule at which the+ontractor undertakes to e.ecute the particular work or to provide the re/uired material!

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article or service! or to do any or all of these things! as set out in the item concerned%

&ille5.s2De5le56 Eisted in the billschedule of /uantities%

Fie5 2Dar6e6 * charge for work that is e.ecuted without reference to time%

MetDo5?relate5 2Dar6e6 The sum for an item inserted in the bill by the +ontractor whentendering! to cover items of work relating to his intended method of e.ecuting the @orks%

Time?relate5 2Dar6e6 * charge for work the cost of which! to the (mployer! is varied inproportion to the length of time taken to e.ecute the particular item scheduled%

ale?relate5 2Dar6e6 * charge that is directly proportional to the value of the contract%

-+* CONTRACTORSOFFIC$( ACCOMMO!ATION


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The +ontractor shall ensure that all his (mployees are fully conversant with the regulations!emergency and rescue procedures etc% and shall enforce a rule that will instantly dismiss anyemployee committing a serious breach of such regulations%

-+/ NOTIC$&OAR!S

The +ontractor shall erect notice boards 43%9 m . 3%= m5 at the site giving details of the +ontract in the

format and wordings directed by the (ngineer% These boards shall be erected within 3> days after the+ontractor has been given the "ossession of Site

The +ontractor shall not erect any advertisement sign board on or along the work% The board shall beremoved by the +ontractor by the end of the &efects Eiability "eriod%

-+, T$MPORARYFACIITI$S

B- Provision of Temporary Servi2es

@hen the rehabilitation or replacement of e.isting public utilities re/uires their temporarydisconnection! the +ontractor shall provide the affected users with temporary services in atleast the same standard as the original services% )or water supply he may install temporarylines or arrange for regular supply by tankers% @hen forced to disconnect e.isting sewers the+ontractor shall install temporary pipes of ade/uate sie to carry off sewage from any privatesewer facilities cut off by construction work% +onnections to temporary pipes shall be made

immediately by the +ontractor upon cutting off the e.isting facility% o sewage shall beallowed to flow from any severed facility upon the ground surface or into trench e.cavation%"ipes used in temporary sewers may be plastic or approved fle.ible material%

1pon completion of work the +ontractor shall replace all severed connections and restore tooperating order the e.isting sanitary facilities% The +ontractor without approval of the(ngineer shall operate no valve or other controls in public service facilities% *ll users affectedby such operation shall be notified by the +ontractor at least one hour before the operationand advised of the probable time when service will be restored%

B* Prote2tion of A5joinin6 Property

The +ontractor shall control the movement of his crews and e/uipment on right6of6wayincluding access routes approved by the (ngineer so as to minimie damage to crops andproperty and shall endeavor to avoid marring the lands% uts and scars shall be obliterated

and damage to land shall be corrected and the land shall be restored as closely as possible toits original conditions before final taking6over of the @orks%

The +ontractor shall be responsible directly to the (mployer for any e.cessive or avoidabledamage to crops or lands resulting from his operations whether on lands adjacent to right6of6way or on approved access road and deductions will be made from payment due to the+ontractor to cover the amount of such e.cessive or avoidable damage as determined by the(ngineer%

B9 Reinstatement pon Completion

Temporary facilities shall be provided by the +ontractor! only for as long as re/uired afterwhich he shall dismantle and remove the same from their place of use as speedily aspossible% The +ontractor in his yard shall safely store re6usable components% The place of useshall be cleared and reinstated immediately to at least the condition e.isting before the

temporary facilities were provided to the satisfaction of the (ngineer%B; Measrement an5 Payment

1nless otherwise provided in the contract! no separate measurement andor payment shall bemade for all materials and works re/uired under this clause% *ll costs in connection with thework specified herein shall be considered to be included with other related items of the workin the BD

*ll provision of temporary services shall be covered by a provisional sum in the BD% Thelump sum amounts indicated in BD shall be paid in pro6rata basis by dividing the totalamounts by contract period in months% These payments will be incorporated in the interimcertificates for payment%

-+< P%&ICYAN!PRIAT$YO"N$!S$RIC$S

435 0f any privately owned service for water! electricity! drainage! etc%! passing through the site isaffected by the works! the +ontractor shall provide a satisfactory alternative service in fullworking order to the satisfaction of the owner of the services and of the (ngineer before

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terminating the e.isting service%

495 &rawing and scheduling the affected services like water pipes! sewers! cables! etc% owned byvarious authorities including "ublic 1ndertakings and Eocal *uthorities included in thecontract documents shall be verified by the +ontractor for the accuracy of the informationprior to the commencement of any work%

4;5 otwithstanding the fact that the information on affected services may not be e.haustive! thefinal position of these services within the works shall be supposed to have been indicatedbased on the information furnished by different bodies and to the e.tent the bodies arefamiliar with the final position% The +ontractor must also allow for any effect of these servicesand alternations upon the works and for arranging regular meetings with the various bodies atthe commencement of the contract and throughout the period of the works in order tomaintain the re/uired co6ordination% &uring the period of the works! the +ontractor shall agreeif the public utility bodies vary their decisions in the e.ecution of their proposals in terms ofprogram and construction! provided that! in the opinion of the (ngineer! the +ontractor hasreceived reasonable notice thereof before the relevant alterations are put in hand%

4>5 o clearance or alterations to the utility shall be carried out unless ordered by the (ngineer%

4?5 *ny services affected by the works shall be restored immediately by the +ontractor who mustalso take all measures reasonably re/uired by the various bodies to protect their services and

property during the progress of the works%485 The +ontractor may be re/uired to carry out the removal or shifting of certain servicesutilities

on specific orders from the (ngineer for which payment shall be made to him% Such worksshall be taken up by the +ontractor only after obtaining clearance from the (ngineer andensuring ade/uate safety measures%

-+, INS%RANC$OF"OR#S

B- Insran2e of "or3s

The +ontractor shall take out 0nsurance for the @orks from approved agencyinstitution staff ifprovided in the contract

"ayment

"ayments made to the agencyinstitution and stamp chargesduties incurred if any! by the

contractor in compliance of the above work shall be paid from "rovisional Sum included forthe item in the BD after submission of the insurance document to the satisfaction of the(ngineer%

B* TDir5 Party Insran2e

The +ontractor shall take out Third "arty 0nsurance from an approved agencyinstitution staffif provided in the contract

"ayment

"ayments made to the agencyinstitution and stamp chargesduties incurred if any! by the+ontractor in compliance of the above work shall be paid from the "rovisional Sum includedfor the item in the BD after submission of the documents to the satisfaction of the (ngineer%

B9 Insran2e of Contra2tor's "or3men an5 $mployees

The +ontractor shall insure against such liability as stipulated in "art 00 +onditions of"articular *pplication%

"ayment

The cost for works under this Sub6+lause shall be covered by the +ontractor's overheadincluded in unit rates of other items in the BD%

-+< $NIRONM$NTAPROT$CTION"OR#S

The environment has been defined to mean surrounding area including human and natural resourcesto be affected by e.ecution and after completion of works%

The +ontractor shall take all precautions for safeguarding the environment during the course of theconstruction of the works% He shall abide by all prevalent laws! rules and regulations governingpollution and environmental protection%

The +ontractor shall prohibit employees from unauthoried use of e.plosives! poaching wildlife andcutting trees% The +ontractor shall be responsible for the action of his employees%

The +ontractor is e.pected to arrange and e.ecute the @orks in such a way that e.isting

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environmental conditions are not deteriorated% Borrow pits and dumping sites used by the contractorshall be reinstated at his own cost by grass andor tree plantation%

@ritten instructionapproval must be given to seek from the (ngineer regarding protection andreinstatement of environment throughout the +ontract period% )ailure in compliance with (ngineer'sinstructions in respect of overall standard will lead to reduction or withhold of payment% )urther! anyserious deterioration in the environment including pollution attributable to +ontractor as determined by

the (ngineer! may result in deduction of actual e.penditures incurred in their reinstatement donethrough separate agency! from any money due to the +ontractor%

(nvironmental protection works! among others! shall also include the followingI

B- &orro4.:arry Sites

The (ngineer shall have the power to disallow the method of construction andor the use ofany borrow/uarry area! if in his opinion! the stability and safety of the works or any adjacentstructure is endangered! or there is undue interference with the natural or artificial drainage!or the method or use of the area will promote undue erosion%

*ll areas susceptible to erosion shall be protected as soon as possible either by temporary orpermanent drainage works% *ll necessary measures shall be taken to prevent concentration ofsurface water and to avoid erosion and scouring of slopes and other areas% *ny newly formedchannels shall be backfilled%

Borrows/uarries shall be located away from the population centers! drinking water intakes!cultivable lands and drainage systems% The cutting of trees shall be minimied% Temporaryditches andor settling basins shall be dug to prevent erosion% The undesirable ponding ofwater shall be prevented through temporary drains discharging to natural drainage channels%

(arthworks operations shall be strictly limited to the areas to be occupied by the permanentworks and approved borrow areas and /uarries unless otherwise permitted by the (ngineer%&ue provision shall be made for temporary drainage% (rosion andor instability andorsediment deposition arising from earthwork operations not in accordance with theSpecifications shall be made good immediately by the +ontractor%

The +ontractor shall obtain the permission of the (ngineer before opening up any borrowspits or /uarries% Such borrow pits and /uarries may be prohibited or restricted in dimensionsand depth by the (ngineer whereI

4i5 They might affect the stability or safety of the works or adjacent propertyJ

4ii5 They might interfere with natural or artificial drainage or irrigationJ

4iii5 They may be environmentally unsuitable%

The +ontractor shall not purchase or receive any borrow materials from private individualsunless the source of such materials has been approved by the (ngineer%

*t least 3> days before he intends to commence opening up any approved borrow pit or/uarry! the +ontractor shall submit to the (ngineer his intended method of working andrestoration% These shall include but not be limited toI

B* !isposal of Spoil an5 Constr2tion "aste

Materials in e.cess of the re/uirements for permanent works and unsuitable materials shallbe disposed off in locations and in the manner as agreed with the (ngineer% The locations of

disposal sites shall be such as not to promote instability! destruction of properties and publicservice systems% (.posed areas of such disposal sites shall be suitably dressed and beplanted with suitable vegetation%

The +ontractor shall plan his works in such a way that there is no spillage of "E products tothe surface or sub6surface water%

B9 Provision an5 Maintenan2e of Camps) Offi2es) Stores) $ipment Yar5s


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e.ecution and adverse effect to the environment%

@ritten information must be given to and approval be taken from the (ngineer regardingproper establishment and maintenance of such camps% )ailure in compliance with (ngineer'sinstruction in respect of overall standard will lead to reduction or with holding of payment%

B; Provision an5 Maintenan2e of Toilets

"rovision of toilets for labor and employees shall be made to avoid public nuisance as well aspollution of water courses and air% The +ontractor shall construct suitable septic tanks andorsoak pits along with room of pit6type latrines% Sufficient water must be provided andmaintained in the toilets% "roper methods of sanitation and hygiene should be employedduring the whole project duration%

B/ Provision of Pota8le "ater

The +ontractor shall supply potable water along with commencement of work to +ontractor'sstaff and work person both at camps and construction6sites% This arrangement shall beenforced to avoid proliferation and generation of various water borne diseases%

The +ontractor shall inform the (ngineer regarding sources! installation and operation ofsupply of potable water within a week after the supply is commenced%

B, Provision of First Ai5.Me5i2al Fa2ilities

"rovision of first aidmedical facilities shall be made along with commencement of work toprovide /uick medical service to injuredsick work person! and employees% Services shall alsoinclude on6the6way service and other arrangements re/uired for taking them to the nearesthospital in case of emergency%

The scope of work shall include service of at least one part6time e.perienced healthworkerhealth assistant with a minimum of once a week full time site visit as work assignment%The +ontractor shall also supply and provide ade/uate medicines and facilities re/uired forstandard first aid%

The +ontractor shall inform the (ngineer regarding the medical facility within a week after itsestablishment and operation%

B


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the (ngineer%

4>5 The +ontractor shall establish working Bench Marks tied with reference stations soon aftertaking possession of the site% The coordinates and the elevations of the reference stationsshall be obtained from the (ngineer% The working Bench Marks shall be near allmajormedium structure sites% egular checking of these Bench Marks shall be made andadjustments! if any! got agreed with the (ngineer and recorded%

4?5 The +ontractor shall be responsible for the accurate establishment of the center lines basedon the &rawing and data supplied% The center lines shall be accurately referenced in amanner satisfactory to the (ngineer% * schedule of reference dimensions shall be preparedand supplied by the +ontractor to the (ngineer%

485 The e.isting profile and cross6sections shall be taken jointly by the (ngineer and the+ontractor% These shall form the basis for the measurements and payments% 0f in the opinionof the (ngineer! design modifications of the center lines andor grade are advisable! the(ngineer shall issue detailed instructions to the +ontractor and the +ontractor shall performmodifications in the field! as re/uired! and modify the levels on the cross6sections accordingly%

-+> AS?&%IT!RA"INGS

Such approved @orking &rawings as have been selected by the (ngineer shall be correctly modified

for inclusion in the *s6Built &rawings incorporating such variations to the @orks as have been orderedand e.ecuted% Such drawings shall show the actual arrangement of all structures and items ofe/uipment installed under the +ontract% The +ontractor shall submit 3 4one5 reproducible copy and ;4three5 prints of all *s6Built &rawings clearly named as such to the (ngineer for approval beforeapplying for the Taking6ver +ertificate for the respective Section of the @orks%

&uring the course of the @orks! the +ontractor shall maintain a fully detailed record of all changesfrom the approval to facilitate easy and accurate preparation of the *s6Built &rawing% 0rrespective ofthe other contractual prere/uisites no Section of the @orks will be considered substantially completeduntil the (ngineer has approved the respective *s6Built &rawings%

--+ PHOTOGRAPHS

The +ontractor shall supply negatives and un6mounted positive color prints of photographs! of suchportions of the works in progress and completed! as may be directed by the (ngineer% The negatives

and prints shall not be retouched% The negative of each photograph shall be the property of the(mployer and shall be delivered to the (ngineer with prints% o prints from these negatives shall besupplied to anyone without the written permission of the (ngineer%

--- S%PPYOFI!$OCASS$TT$S

The work consists of taking video film of important activities of the work as directed by the% (ngineerduring the currency of the contract and editing them to a video film of playing time between ;:minutes and 3=: minutes as directed by the (ngineer% 0t shall contain narration of activities in (nglishandor epali by a competent narrator% The edition of the video film and the script shall be approvedby the (ngineer% The video cassettes shall be of acceptable /uality and the film shall be capable ofproducing color pictures%

Measurement

The measurement for this item shall be by number of sets of edited master cassettes supplied eachwith four copies thereof%

"ayment

The contract unit rate shall include all e.penses for making video films with the help of aprofessionally competent photographer! editing! narration and supplying the final edited mastercassette along with four copies thereof%

--* NOT$SA&O%TM$AS%R$M$NTAN!PAYM$NT

B- Measrement

1nless specified! all measurements shall be based on K"rincipals of Measurement 40nt%5 forworks of constructions%,

The tolerances specified in these Specifications are for evaluation of accuracies only basedon which the work shall be accepted or rejected% However! the measurement of the workperformed within the limits of tolerances shall be the measurement of actual work done inplace! if their dimensions are less than what have been specified or instructed by the

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(ngineer% 0f the actual work done in place is more than what has been specified or instructedby the (ngineer! but within the limit of tolerances! the measurement shall be themeasurement of the work what has been specified or instructed by the (ngineer%

B* Payment

1nless specified in the contract! the contract unit rates andor prices for items as set out in theBill of Duantities are the full and the final compensation to the +ontractor forI

Supply of all materials necessary to complete the item as per relevant specificationsJ

1se of materials! labors! tools! e/uipment! machines and other resources as per

needJ

*ll handling! packing charges and transportationJ

+ost of supervision! /uality assurance! temporary and ancillary worksJ

Site commissioningJ

Maintenance and making goodJ

*ll duties and obligations as set out in the contract

general works such as setting out! clearance of site before setting out and after

completion of works the preparation of detailed work program

providing samples of various materials proposed to be used

the detailed &esign and &rawing of temporary works

testing of materials

any other details as re/uired by the contract

cost of all operations like storing! erection! moving into final position! etc% necessary

to complete and protect the work till handing over to the (mployerJ

the cost for safeguarding the environment

*ll incidental costs! not covered under above stated%

@here the Bill of Duantities does not include the items mentioned in Section 3::! no separatepayment shall be made for such works% The costs in connection with the e.ecution of theworks specified herein shall be considered to be included in the related items of other worksspecified in the Bill of Duantities or shall be considered to be incidental to the works specified%0tems specified in this Section and included in the Bill of Duantities shall be paid at thecontract unit rates as agreed and shown in the Bill of Duantities%

--9 NATIONASP$CIFICATIONS

+ertain Specifications issued by various national or other widely recognied bodies arereferred to in these Specifications% Such Specifications shall be defined and referred to asational Specifications%

The +ontractor may propose that the materials and workmanship be defined in accordancewith the re/uirements of other e/uivalent ational Specifications and he may e.ecute theworks in accordance with such ational Specifications as may be approved by the (ngineer%* copy of the ational Specification! together with its translation into the (nglish language ifthe ational Specification is in another language! shall be submitted to the (ngineer alongwith the re/uest for its adoption%

0n referring to ational Specifications! the following abbreviations are usedI

S epal Bureau of Standards and Metrology

0S 0ndian Standards

*STM *merican Society of Testing and Materials

BS British Standards

BS+" British Standard +ode of "ractice

0S 0nternational rganiation for Standardiation

( (uropean orm

)" )rench orm

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*long with the commencement of the contract! the +ontractor shall provide in his site office atleast one complete set of all ational Specifications referred to in these Specifications! if theyare for the Sections applicable to the works% This set shall be made available for use by the(ngineer%

--; $:%IA$NCYOFSTAN!AR!S

@herever reference is made in these Specifications to specific standards and codes to bemet by the materials! plant! and other supplies to be furnished! and work to be performed ortested! the provisions of latest current edition or revision of relevant standards and codes ineffect shall apply% ther authoritative standards which ensure a substantially e/ual or higherperformance than the specifiedL!6standards and codes shall be accepted subject to the(ngineer's prior review and approval% &ifferences between the standards specified and theproposed alternative standards shall be fully described by the +ontractor and submitted to the(ngineer at least 9= days prior to the date when the +ontractor desires the (ngineer'sapproval% 0n the event that the (ngineer determines that such proposed deviations do notensure substantially performance! the +ontractor shall comply with the standards and codesspecified% o payment shall be made for adoption of higher standards%

--/ %NITSOFM$AS%R$M$NT) A&&R$IATIONSAN!T$RMINOOGY

B- %nits of MeasrementThe Symbols for units of measurement are used in these Specifications as they are givenbelow%

M micron m. 3:

mm millimeter

m meter

km kilometer

s/% mm% or mm9 s/uare millimeter

s/%m% or m9 s/uare meter

s/% km% or km

9

s/uare kilometerha hectare

cu% m% or m; cubic meter

lit or 0 liter

rad radian

N+ degrees +elsius

kg kilogram

g gram kg.3:6;

mg milligram kg . 3:'8

mgl milligram per liter

t ton kg . 3:;

kgm; kilogram per cubic meter

tm; ton per cubic meter

ewton

m9 ewton per s/uare meter

Ein% m Einear meter

Ma. Ma.imum

Min Minimum

Symbols of other units! if not covered above! shall be as per S0 system set out in 0S ;33%

B* A88reviationsThe following abbreviations are used in these Specifications%

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*+< *ggregate +rushing 5 The Sections! +lauses andor Sub6clauses mentioned in these Specifications deem to applythose of these Specifications only! if otherwise not specified%

--, PROGRAM

The +ontractor shall provide all information needed for fulfillment of the program and re/uired inaccordance with the +onditions of +ontract including the se/uence in which he intends to workincluding implementation of /uality assurance plan% 0f the +ontractor re/uests a change in these/uence and such change is approved by the (ngineer! the +ontractor shall have no claim as perthe +onditions of +ontract for delay arising from such revisions to the program%

The program for the construction and completion of the works shall be established using +"M"(Ttechni/ues or e/uivalent% The program shall be detailed enough to give! in addition to construction

activities! detailed network activities for the submission and approval of materials! procurement ofcritical materials and e/uipment! fabrication of special productse/uipments if any and their installationand testing! and for all activities of the (ngineer that are likely to affect the progress of work% The

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+ontractor shall update all activities in accordance with the +onditions of +ontract on the basis of thedecision taken at the periodic site review meetings or as directed by the (ngineer%

The program shall also include the +ontractor's general re/uirements for any road closures pursuantto +lause 3:9 to be agreed in principle with the (ngineer% Such agreement shall not relieve the+ontractor of his responsibility to obtain specific approval for each closure or series of closures%

*ny proposal for night working shall also be stated in the program%

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CHAPT$R *

*++ SIT$ C$ARANC$

*+- C$ARING

B- S2ope

This Section covers the removal of topsoil! vegetation! boulders of sie up to :%9? cu%m!surface obstructions! and demolition and removal of structures including their basements 4ifany5 not directly associated with or incidental to any e.cavation necessary for the constructionof the works covered by the contract% +onservation of the top soil and flora is also coveredunder this section% The prepared surface shall be finished to line! grade and slope suitableand as re/uired by the (ngineer%

*ll material from site clearance shall be the property of the (mployer and depending on itsnature shall! as directed by the (ngineer! be either

a% Stockpiled for future reuse%

b% disposed by controlled burning%

d% disposed by tipping or side casting with all lift within ;:m%

Topsoil! referred to in this +lause shall mean the top 3:: mm layer of soil with roots andorganic matter! which is capable of vegetation support%

B* !es2ription of "or3

4a5 +learing

+learing shall consist of the cutting! removing and disposal of all trees! bushes! shrubs! grass!weeds! other vegetation! anthills! rubbish! fences! top organic soil not e.ceeding 3?: mm inthickness and all other objectionable material! resulting from the clearing and grubbing% 0tshall also include the removal and disposal of structures that obtrude! encroach upon orotherwise obstruct the work%

The moving of a certain amount of soil or gravel material may be inherent to or unavoidableduring the process of clearing and no e.tra payment shall be made for this% +learing shallinclude the removal of all rocks and boulders of up to :%3? m; in sie e.posed or lying on the

surface%

4b5 Grubbing

0n the site all trees up to ;:: mm girth! stumps and roots shall be removed to a depth of notless than 7:: mm below the finished level and a minimum of ?:: mm below the originalground level whichever is lower%

(.cept in borrow areas the cavities resulting from the grubbing shall be backfilled withapproved material and compacted to a density not less than the density of the surroundingground%

4c5 +onservation of Top Soil

@here suitable topsoil e.ists within the limits of the area to be cleared and grubbed! the+ontractor shall! if ordered by the (ngineer! remove the topsoil together with any grass and

other suitable vegetation% 0f not used immediately! the topsoil shall be transported anddeposited in stockpiles for later use%

4d5 +onservation of )lora

@here provided for in the contract! certain designated flora encountered in the road reserveand borrow areas shall be carefully protected by the +ontractor% 0n his tendered rate for Site+learance! he shall include for the careful removal and planting of the flora in a protected andfenced6off area and! on completion of the road! for the

replanting of the flora in suitable positions in the road reserve in accordance with the(ngineer's instructions%

B9 $e2tion of "or3

4a5 *reas to be +leared and Grubbed

Stumps! embedded logs! roots and all other vegetation growth and accumulated rubbish of

whatsoever nature and all other objectionable material shall be completely removed to adepth as specified in Sub6clause 9:3 495 4a5 and 4b5%

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ormally the portions of the road reserve that fall within the limits of the road prism! as well ascertain borrow areas shall be cleared andor grubbed% @here the road reserve is to remainunfenced! the full width of the road reserve shall be cleared andor grubbed e.cept for suchtrees designated by the (ngineer to be left standing and uninjured%

The +ontractor shall mark the boundaries of the area for clearing and grubbing and seek theapproval of the (ngineer before commencement of the work% The (ngineer shall designate in

detail the e.act areas to be cleared and grubbed and the time at which it shall be done%

4b5 +utting of Trees

The +ontractor shall take the necessary precautions to prevent damage to structures andother private or public property% 0f necessary! trees shall be cut in sections from the topdownwards% The branches of trees to be left standing shall be trimmed so as not to intrudeinto a space of A m above the roadway%

Such individual trees as the (ngineer may designate and mark in white paint shall be leftstanding and uninjured% 0n order to minimie damage to trees that are to be left standing!trees shall be felled towards the center of the area being cleared! if so re/uired by the(ngineer%

"ermission for cutting trees must be obtained from the competent authority who may re/uirethat trees be numbered! measured and marked in the presence of officials from that authority%

+utting of such trees shall then be carried out by the +ontractor and the timber stored atdesignated locations within the ight of @ay%

)elling and cutting of trees on the site and pilling them off the site shall conform to there/uirements of the competent authority%

*ll tree trunks and branches in e.cess of 3?: mm in diameter shall be cleaned off! secondarybranches cut into suitable length and stacked at sites indicated by the (ngineer% Such timbershall not be used by the +ontractor for any purpose and shall remain the property of the(mployer%

*ll timber e.cept such timber as can be used and all brush! stumps! roots! rotten wood andother refuse from the clearing and grubbing operations shall be completely removed fromwithin the ight of @ay%

4c5 &ealing with *nthills

@here anthills are encountered within the limits of the road prism! they shall be e.cavated toa depth of not less than A?: mm below the finished road level and the material carted to spoil%+avities resulting from the clearance of anthill material shall be backfilled with approvedmaterial and compacted to a density not less than that of the surrounding ground%

@here directed by the (ngineer! the area covered by anthills shall be treated! after e.cavationand before backfilling of cavities! with an approved ant control chemical% "ayment for suchtreatment shall be made in the manner specified in the contract%

4d5 &isposal of Material

Material obtained from clearing and grubbing shall be disposed off in borrow pits or othersuitable places and be covered up with soil or gravel as directed by the (ngineer% The burningof combustible material shall not! normally! be permitted and may only be done with the priorwritten approval of the (ngineer%

@here fences have to be taken down! fencing wire shall be neatly wound into reels and allsuch wire! together with all fence posts and other serviceable material from structures! etc%!shall be stacked at sites indicated by the (ngineer%

4e5 e6clearing of


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B; Measrement

+learing and grubbing e.ecuted as per this Specification shall be measured in s/uare meter%

+utting trees including removal of stumps and their roots of girth above ;:: mm andbackfilling to re/uired compaction shall be measured in number according to the sies givenbelowI

a *bove ;:: mm to 8:: mm%b *bove 8:: mm to 7:: mm%

c *bove 7:: mm to 3=:: mm%

d *bove 3=:: mm%

)or this purpose girth shall be measured at a height 3 meter above ground%

+utting of trees up to ;:: mm girth including removal of stumps and roots and backfilling ofholes with compaction shall not be measured separately%

B/ Payment

+learing and grubbing and cutting trees shall be paid at their respective contract unit rateswhich shall be the full and the final compensation to the +ontractor as per +lause 339% Thecontract unit rate for cutting of trees of girth above ;:: mm shall also include handling!

salvaging! piling and disposing off the cleared materials with all leads and lifts%B, Measrement

"rior to commencement of dismantling! the work of dismantling structures shall be measuredin the units given belowI

Type of @ork 1nit

&ismantling brickstone masonry concrete 4plain and reinforced5 cu% m%

&ismantling gabion cu% m

&ismantling steel structures t

&ismantling timber structures cu% m

&ismantling pipes! guard rails! kerbs and gutters r% m

1tility services Eump sum

"avement cu% m

*ssociated works like disposal! stockpiling! marking and numbering! etc% shall not bemeasured separately%

B


25/132

CHAPT$R 9

9++ :%AITY CONTRO

9+- SCOP$

This Section covers the Duality +ontrol System and procedures! Duality *ssurance "lan! program oftests! trials! and general procedures for acceptance as well as laboratory arrangements and relatedfacilities which are re/uired for the selection and control of the /uality of materials and workmanship%

9+* CONTRACTORR$SPONSI&$FORTH$:%AITYOFTH$"OR#S

*ll materials incorporated and all workmanship performed shall be strictly in conformity with there/uirements of the Specifications and the +ontractor shall be responsible for the /uality of the worksin the entire construction within the contract%

The +ontractor shall provide! use and maintain on the Site! throughout the period of e.ecution of thecontract! a laboratory with ade/uate laboratory e/uipment operated by competent staff for carryingout tests re/uired for the selection and control of the /uality of materials and for the control ofworkmanship in accordance with these Specifications% The list of laboratory e/uipment to be procuredand laboratory facilities to be provided shall be as per clause ;:=% The +ontractor shall assume that

tests shall be re/uired on all materials to be used in the works and on all finished works or part ofworks%

9+9 :%AITYCONTROSYST$M

The Duality +ontrol System comprises the methods! procedures and organiation for the Duality+ontrol of the works% The +ontractor shall implement the Duality +ontrol System in the followingse/uencesI

435 Se/uence

a5 +ompliant testing for materials including laboratory trials!

b5 +ompliant testing for methods and e/uipment prior to the commencement of thework! including site trials or trials sections!

c5 +ontrol testing during construction!

d5 *cceptant testing on completed works or parts of the works%The +ontractor shall carry out all necessary tests and shall report to the (ngineer the resultsof such tests before submitting materials andor finished works or part of works to the(ngineer for approval in accordance with this Specification% 0n certain circumstances! testsmay be carried out at the place of manufacture as per the +onditions of +ontracts%

)or satisfying himself about the /uality of the works! /uality control tests shall be conductedby the (ngineer himself or by any other agencies deemed fit by the (ngineer% *dditional testsmay also be conducted where in the opinion of the (ngineer such tests are needed%

Before commencement of the work! the +ontractor shall demonstrate a trial run of allconstruction e/uipment for establishing their capability to achieve the laid down Specificationsand tolerances to the satisfaction of the (ngineer%

495 The supply! testing and monitoring shall be in compliance with a Duality *ssurance "lan!

+lause ;:> and the provisions in the contract%

9+; :%AITYASS%RANC$PAN

The +ontractor shall submit to the (ngineer for his approval! the Duality *ssurance "lan4D*"5 which shall be based on the detailed "rogram of the @orks as per +lause 338 of theseSpecifications%

The Duality *ssurance "lan shall include the followingI

435 The Duality +ontrol Schedule +omprising ofI

a5 The recapitulative test schedule and testing program detailing the list of tests forcompliance! laboratory trials! site trials and trials Sections! construction control testsand their fre/uencies! tests for acceptance of the completed works with their dates%

b5 ecapitulative list of ,critical, acceptance testing procedures! for e/uipment or parts

of the works which corresponds to the tasks on the +ritical "ath according to theconstruction "rogram%

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c5 (stimate of the number of tests to be carried out! list and number of appropriatee/uipment to conduct them! list of tests to be conducted outside the site laboratory! ifany! identification of the outside laboratory where proposed to carry out the test%

d5 Eist of staff assigned to the laboratory! their position and responsibilities in the /ualitycontrol procedures! their /ualification and e.perience! general description anddetailed organiation of the laboratory activities%

495 The list of sources of materials andor of manufactured articles! their main characteristics!their identification mode as provided by the supplier when re/uiredJ the program of supplyand procurement of material andor manufactured articles in accordance with the "rogrampursuant to +lause 338%

4;5 The list of tests and /uality control procedures to be implemented by the Sub6contractors! ifany! pointing out the ,critical, acceptance testing procedures relating to the Sub6contractedworks! which correspond to the tasks on the +ritical "ath included in the Sub6contractedworks%

The +ontractor shall implement the Duality +ontrol in compliance with the approved D*"%

The (ngineer's approval of the D*" shall not relieve the +ontractor from his responsibility ofthe /uality of the @orks as per the +onditions of +ontract and these Specifications nor shall

the (ngineer's approval of the D*" e.empt the +ontractor of any procedure to inform the(ngineer in writing or re/uest for the (ngineer's approval or re6approval as specified in the+onditions of +ontract andor in these Specifications

The +ontractor shall monitor and update the D*" on the basis of the decisions taken at theperiodic review meetings or as directed by the (ngineer and in accordance with the programof the works as per +lause 338 and the +onditions of +ontract%

9+/ T$STINGPROC$!%R$SAN!S$TOFT$STS

)or ensuring the /uality of the work! the materials and the workmanship shall be subjected to testingin accordance with procedures! sets of tests and fre/uencies as specified in Section >:: andrespective Sections of these Specifications% The specified testing fre/uencies are not restrictive% The(ngineer shall direct for the tests to be carried out as fre/uently as deemed necessary that thematerials and workmanship comply with their Specifications%

Sets of tests to be carried out on the materials and the workmanship as specified in theseSpecifications are recapitulated in +lause ;3:% @here no specific testing procedure is mentioned inthe Specifications! the tests shall be carried out as per the prevalent accepted engineering practice ordirections of the (ngineer%

9+, A&ORATORYTRIASTOCONFIRMCOMPIANC$"ITHSP$CIFICATIONS

B- Con2rete

Eaboratory trials for concrete mi.es as specified in +lause 8:: shall be carried out by the+ontractor to demonstrate that the composition of the mi.es proposed for the concrete meetsthe re/uirements of the Specifications%

The compositions of concrete mi.es which meet the specified re/uirements and are acceptedby the (ngineer shall be then used in the site trials carried out in accordance with +lause ;:A%

9+< SIT$TRIASORTRIASS$CTIONS

B- Con2rete

Site trials for concrete mi.es as specified in +lause 8:: shall be carried out by the +ontractorto demonstrate the suitability of his mi.ing e/uipment% &uring the site trials! compliance withthe Specifications for weighing e/uipment! storage of ingredients! means of transport forconcrete! placing! compaction and curing shall be checked by the (ngineer%

&uring the site trial a full scale se/uence including placing and compaction of concrete shallbe carried out on a part of the works which will represent particular difficulties due to thepresence of reinforcement! obstructions or others%

The +ontractor shall allow in his program for conducting the site trials and for carrying out theappropriate tests! including the time re/uired to obtain compressive strength test results at 9=days% The +ontractor shall inform in writing the (ngineer at least two weeks before the datehe proposes to use the concrete mi.es in the site trials with all relevant data including the trialprogram! the results of the laboratory trial tests for the proposed concrete mi.es and

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compliance tests results of all constituents i%e% cement! aggregates! water and admi.tures! ifany%

B* OtDer "or3s an5 $ipment

Site trials for "re6stressed +oncrete @orks! "ainting of Structural Steelwork etc% are detailedin the relevant Sections of these Specifications%

*pproval of the (ngineer to a set of data recorded in a site trial shall not relieve the+ontractor of his responsibilities to comply with the re/uirements of these Specifications

9+= CONTROT$STING!%RINGCONSTR%CTION

Duality +ontrol procedure are detailed in the relevant Sections of these Specifications

9+> ACC$PTANC$T$STSFORCOMP$T$!"OR#SORPARTOF"OR#S

*cceptance tests for other works and e/uipment are detailed in the relevant Sections of theseSpecifications%

9-+ R$CAPIT%ATI$SCH$!%$OFT$STS

the tests to be carried out and their fre/uency for the /uality control of the works are detailed in therelevant Sections of these Specifications%

The following Table ;::%3 recapitulates the testing schedule for the main types of works%TA&$9++@-7 T$STINGSCH$!%$

PART OR COMPON$NT OF TH$

"OR#S

Se2tion.

Clase No

T$STS FR$:%$NCY

++(T(

M*T(0*ES

8:: P+ementI *cceptance testsI

+TE T(STSI +hemicalcomposition "hysical properties

P*ggregatesI

*cceptance testsI

+TE T(STSI

Grading

Silt 2 clay content

rganic 0mpurities

+hloride content! sulphate content!

*lkali reactivity

@ater! *dmi.tures

P+onservative samples foreach supply and not less thanevery 9::t or part of it%

P Testing in case of noncompliance of the mi.es orstorage on site for longer than 3month

PSub6clause 8:; 4?5

P(ach delivery and every 3:: t orpart of it for fine aggregate and9?: t or part of it for coarseaggregate

P*s fre/uently as re/uired%

++(T( P E*B% T0*ES P

S0T( T0*ES P +ontrol tests+ompressive strength

PSub6clause 8:: 4;5 P Sub6

clause 8:: 4>5 P(arly worksIevery 8 m;of each class% @hencompliance is establishedI every9: m;or part of it%

(0)+(M(TI P +lause 83>

&RIC#"OR#S FORSTR%CT%R$S

M*T(0*ES MT*

A:: P Duality of Bricks

P Duality of cement and sand

P +ontrol tests +ompressivestrength of mortar

*s re/uired

P (very 3: m;of brick work orpart of it%

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M*SQ )

ST1+T1(S

M*T(0*ES

MT*

=:: P Duality of cement and sand

P +ontrol tests +ompressivestrength of mortar

P &ismantling of masonry 43mR3 m5

P *s re/uired

P (very 3:m;of masonry of partof it

P (very ;:m;of masonry or part

9-- CONTRACTOR'SA&ORATORY

B- a8oratory &il5in6

The +ontractor shall on his own make provide and maintain a site laboratory% Such laboratoryshall have a minimum total area of 8: m9appropriately partitioned to house various laboratoryinstrumentse/uipment! office! store! and toilet% 0t shall have ade/uate electrical connections4power plugs! switches5 necessary to operate the e/uipment in the laboratory%

The laboratory shall either be any e.isting building at site! rented and modified to suit thepurpose or shall be a shed constructed of G0 sheets and pipesangles% The floor of thelaboratory shall however be of 3:: mm M3?9: concrete and the minimum height 9%A m% The+ontractor shall submit the design of the G0 shed for approval of the (ngineer prior to itsconstruction%

*lternatively! it may also be constructed from shipping containers modified suitably to the(ngineer's satisfaction for the purpose%

This laboratory shall be part of the Temporary @orks and will be the property of the +ontractoron completion of the @orks%

B* Measrement

Measurement for the provision of site laboratory will be on a monthly basis%

B9 Payment

"ayment for work will be made on the basis of contract unit price indicated in the BD%

"ayment for the works shall be full and final compensation for all material! labor! ande/uipment 4including land rent if any5 to complete the works as specified%

9-* A&ORATORY$:%IPM$NTATSIT$

The e/uipment for the site laboratory and field control tests shall be provided! installed! operated andmaintained by the +ontractor% The e/uipment! material! chemical reagents may also be used by the(ngineer to conduct tests according to his Duality +heck "lan% Testing fre/uency 4both laboratory andfield control5 shall be developed in the Duality *ssurance "lan of the +ontractor and Duality +heck"lan of the (ngineer%

*fter the completion of the @orks! the laboratory e/uipment shall become the property of the+ontractor%

Eaboratory and field control e/uipment anticipated for the @orks are listed in Tables ;::%9%

Measurement and "ayment

Measurement and "ayments for the work under +lause ;:7 will be made in relevant monthlystatement on the basis of lump sum price /uoted in the BD% 0t shall be paid in the following mannerI

6 ?:O after installation of the e/uipment in the site laboratory to the satisfaction of the(ngineer and

6 the remaining ?:O after =:O completion of the @orks%

The cost of e.ecution of tests either in the laboratory or in the field shall be covered by the+ontractor's overhead included in unit rates of other items in the BD%

TA&$ 9++@*7 A&ORATORY $:%IPM$NT.FI$! CONTRO T$STING APPARAT%S FOR C$M$NT MASONRYAN!CONCR$T$"OR#S

S%o% &esignation Duantity

3% Slump +one with Base and Graduated Tamping od 9 Sets

9% Heavy &uty +oncrete +ube Moulds! 3?9 mm cubes!

with Base

39 Sets

;% +oncrete +ube +rushing 4set5 Machine with Spherically 3 Set

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Seated Block and "latens for Mortar Test

>% Mortar )low *pparatus with +one 9 Sets

?% % 1TM tensile Test for *nchor Bar

?% Specific Gravity of *ggregates

The tests listed above are subject to the +ontractor's Duality *ssurance "lan approved by the(ngineer% The (ngineer shall also determine the number of tests while e.ecuting the @orks%

The +ontractor shall keep records of all tests in a format approved by the (ngineer% Two copies of anytest results shall be forwarded to the (ngineer%

MeasurementMeasurement of work under this +lause shall be in number of tests fully e.ecuted to the satisfactionof the (ngineer%

"ayment

"ayment will be made from the "rovisional Sum set aside for the purpose and shall be full and finalcompensation for all material! labor! and e/uipment to complete the works as specified%

9-; S%R$YAN!S$TTING

*ll traverse stations and reference points shall be clearly marked and protected to the satisfaction ofthe (ngineer%

The +ontractor shall provide the (ngineer with all necessary assistance for checking the setting out!agreement of levels and any other survey or measurement which the (ngineer needs to carry out in

connection with the @orks during the entire period of +ontract% Such assistance shall includeI6 "rovision of suitably /ualified surveyors to work under the direction of the (ngineer as

re/uired%

6 "rovision of all necessary support for these surveyors including assistants! chainmen! labor!survey e/uipment 4theodolites! levels! etc%5! hand tools! pegs! and other incidental material%

The survey e/uipment shall be of the /uality approved by the (ngineer%

9-/ %S$OFTH$CONTRACTOR'ST$MPORARY"OR#S

1nless otherwise specified under the +ontract! the +ontractor shall allow the (mployer! the (ngineeror the ominated Subcontractor the use of temporary access! crossings and other Temporary @orksat site insofar that such use is related with the @orks%

9-, PROI!$AN!PAC$ARG$P$RMAN$NTSIGNSAN!MAR#INGS

The +ontractor shall provide and erect large permanent signs and markings in steel at locations asdirected by the (ngineer%

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The large signs shall be of the sie as indicated in the Standard &rawings of &epartment of oadsand shall be mounted and fi.ed in position as directed by the (ngineer% The lettering! painting andcolor configuration shall conform to Standards set by &epartment of oads%

The signs and marking shall be erected by embedding them one meter in a 9:: mm . 9:: mm hole inthe ground% The bottom 8:: mm shall be filled with river sand and the remaining with M3?;A%?concrete%

9-< !AY"OR#

&ay work shall mean provisional sum payable to the +ontractor for works e.ecuted on a daily orhourly basis as instructed in writing by the (ngineer% This item is categoried in three groups namelyI

4i5 Eabor

4ii5 (/uipment

4iii5 Material

The (ngineer however shall have the right to obtain further information on the rates and if appropriateto negotiate changes in the rates or demand new prices for additional e/uipment! staff! or materialbefore or after the award of the +ontract%

The (ngineer shall have the right to calculate new prices for &ay work on the basis of rate analysis%

The hourly or daily rates of labor or e/uipment and the unit price for material submitted by the+ontractor shall deem to cover all e.penses and shall be inclusive of overhead! ta.es! and profit%

on6working hours or idle timedown time of labor and e/uipment respectively shall not be consideredfor payment%

9-= R$PORTS

The +ontractor shall prepare and submit four copies of "rogress eport on a monthly basis% Theeports shall highlight the targeted and achieved progress! problems at site! and brief description ofthe claims during the month and the (ngineer's response! and other information relevant to the"roject% 0t shall be supplemented with necessary charts! tables! data! and at least ;8 photographs%

n completion of the @orks! the +ontractor shall prepare and submit a +ompletion eport that shalldeal comprehensively on all aspects covered in the Monthly eport% *dditional information such asimprovement in construction methodstechni/ues! lessons learnt from the "roject! important

considerations for maintenance! etc% should also be highlighted%

9-> SIT$!IARY

The +ontractor shall keep Site &iaries wherein full details of the work carried out during each dayshall be fully recorded% The diaries shall be available for inspection by the (ngineer any time duringnormal office hours% The Site &iaries shall includeI

6 @eather +onditions! rainfallsnowfall! and river water level

6 &escription! /uantity! and location of work performed

6 Shifts and working hours

6 umber and category of workers working at site

6 "lant in use and idle! or broken down

6 Test carried out and results6 0nspection carried out by the (ngineer

6 Site instructions

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CHAPT$R ;

;++ MAT$RIAS AN! T$STING OF MAT$RIAS

;+- SCOP$

This section covers the general re/uirements relating to materials! the specific re/uirements for basicmaterials! the tests and methods of testing which are re/uired for the selection and /uality control ofmaterials%

;+* :%AITYOFMAT$RIAS

The materials supplied and used in the works shall comply with the re/uirements of theseSpecifications% They shall be new! e.cept as provided elsewhere in the contract or permitted by the(ngineer in writing% The materials shall be manufactured! handled and used skillfully to ensurecompleted works to comply with the contract%

;+9 SO%RC$SOFMAT$RIAS

The use of any one kind or class of material from more than one source is prohibited! e.cept bywritten permission of the (ngineer% Such permission! if granted! shall set forth the conditions underwhich the change may be made% The sources or kinds of material shall not be changed without written

permission of the (ngineer% 0f the product of any source proves unacceptable! the +ontractor shallmake necessary arrangements for the supply of acceptable material% *ny claims for compensationassociated with such arrangements or changes shall not be considered! unless the source of theunacceptable material is designated in the contract as a source of material%

@hen any manufactured product! either new or used! is to be furnished by the (mployer! the locationat which such material shall be delivered to the +ontractor shall be designated in the contract% 0n suchcases! the +ontractor shall haul the materials from the designated delivery point to the point of use%The compensation for such hauling shall be included in the contract unit rate for placing the materialsin the finished work%

;+; INSP$CTIONAN!ACC$PTANC$OFMAT$RIAS

)inal inspection and acceptance of materials shall be made only at the site of the work% The (ngineerreserves the right to sample! inspect! and test the materials throughout the duration of the works andto reject any materials which are found to be unsatisfactory%

* preliminary inspection of materials may be made at the source for the convenience andaccommodation of the +ontractor! but the presence of a representative of the (ngineer shall notrelieve the +ontractor of the responsibility of furnishing materials complying with their Specifications%

The representative of the (ngineer shall have free entry at all times to those parts of any plant whichconcern production of the materials ordered%

;+/ MAT$RIASAN!MAN%FACT%R$!ARTIC$S

B- Or5er for Materials an5 Manfa2tre5 Arti2les

The +ontractor shall! before placing any order for materials and manufactured articles forincorporation in the @orks! submit to the (ngineer the names of the firms from whom heproposes to obtain such materials and manufactured articles! giving for each firm a

description of the materials and manufactured articles to be supplied! their origin! themanufacturer's specification! /uality! weight! strength and other relevant details% The+ontractor shall submit the samples of such materials and manufactured articles whenre/uested by the (ngineer and when appropriate! manufacturer's certificates of recent testcarried out on similar materials and manufactured articles shall also be submitted%

B* Stora6e

*ll materials and manufactured articles shall be stored on site in a manner acceptable to the(ngineer% The +ontractor shall carefully protect all work! materials and manufactured articlesfrom the weather and vermin%

B9 Test Certifi2ates

@hen instructed by the (ngineer! the +ontractor shall submit to him all Test +ertificates fromthe suppliersmanufacturers of the materials andor manufactured articles to be used for thecontract% Such certificates shall certify that the materials andor manufactured articlesconcerned have been tested in accordance with the re/uirements of these Specifications% *ll

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Test results shall be enclosed along with such certificates% The +ontractor shall provideade/uate means of identifying the materials andor manufactured articles delivered on the sitewith the corresponding certificates%

;+, !$F$CTI$MAT$RIAS

*ll materials not conforming to the re/uirements of the contract shall be rejected whether in place or

not% They shall be removed immediately from the site unless otherwise permitted by the (ngineer%(ven after rectification of the defects no rejected material shall be used in the work unless approvedby the (ngineer in writing% 1pon failure of the +ontractor to comply promptly with any order of the(ngineer given under this +lause! the (ngineer shall have authority to cause the removal andreplacement of rejected material and to deduct the cost thereof from any monies due to the+ontractor%

;+< TRA!$NAM$SAN!AT$RNATI$S

)or convenience in designation in the contract! certain articles or materials to be incorporated in thework may be designated under a trade name or the name of a manufacturer and his catalogueinformation% The use of an alternative article or material which is of e/ual or better /uality and of there/uired characteristics for the purpose intended shall be permitted! subject to the followingre/uirementsI

435 The proof as to the /uality and suitability of alternatives shall be submitted by the +ontractor%He shall also furnish all information necessary as re/uired by the (ngineer% The (ngineershall be the sole judge as to the /uality and suitability of alternative articles or materials andhis decision shall be the final and binding upon the +ontractor%

495 @henever the specifications permit the substitution of a similar or e/uivalent material orarticle! no tests or action relating to the approval of such substitute material shall be madeuntil the re/uest for substitution is made in writing by the +ontractor accompanied bycomplete data as to the e/uality of the material or article proposed% Such re/uest shall bemade well in advance to permit approval without delaying the work%

;+= FOR$IGNMAT$RIAS

Materials which are manufactured! produced or fabricated outside epal shall be delivered at a pointin epal as specified in the contract where they shall be retained for a sufficient time to permit

inspection! sampling! and testing% The +ontractor shall not be entitled to an e.tension of time for actsor events occurring outside epal and it shall be the +ontractor's responsibility to deliver materialsobtained from outside epal to the point of delivery in epal% The +ontractor shall supply the facilitiesand arrange for testing re/uired at his own cost% *ll testing by the +ontractor shall be subject towitnessing by the (ngineer%

The +ontractor shall furnish to the (ngineer a ,+ertificate of +ompliance, with the specifications fromthe manufacturer! producer or fabricator of foreign material where re/uired% 0n addition! certified milltest reports clearly identifiable to the lot of material shall be furnished where re/uired in theseSpecifications or otherwise re/uested by the (ngineer% @here structural materials re/uiring mill testreports are obtained from foreign manufacturers! such materials shall be furnished only from thoseforeign manufacturers who have previously established! to the satisfaction of the (ngineer! thesufficiency of their in6plant /uality control! as deemed necessary by the (ngineer or his

representative! to give satisfactory assurance of their ability to furnish material uniformly andconsistently in conformance with their Specifications% *t the option of the (ngineer! such sufficiencyshall be established whether by submission of detailed written proof thereof or through in6plantinspection by the (ngineer or his representative%

0f the welding of steel for structural steel members or the casting and pre6stressing of pre6cast pre6stressed concrete members is to be performed outside of epal! the following re/uirements shallapplyI

435 Such fabrication shall be performed only within the plants and by fabricators who havepreviously established! to the satisfaction of the (ngineer! that they have the e.perience!knowledge! trained manpower! /uality control! e/uipment and other facilities re/uired toproduce the /uality and /uantity of the work re/uired% *t the option of the (ngineer!pre/ualification of the plant and fabricator shall be established either by the submission ofdetailed written proof thereof or through in6plant inspection by the (ngineer or his

representative! or both%

495 The +ontractor shall make written application to the (ngineer for approval for such foreign

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fabrication at the earliest possible time and in no case later than 8: calendar days in advanceof the planned start of fabrication% The application shall list the specific units or portion of awork which shall be fabricated outside of epal%

4;5 The +ontractor shall advise the (ngineer! in writing! at least 9: calendar days in advance ofthe actual start of any such foreign fabrication%

4>5 *ll documents pertaining to the contract! including but not limited to! correspondence! tenderdocuments! working drawings and data shall be written in the (nglishepali language and allnumerical data shall use the metric system of units of measurement%

;+> !$FINITIONOFG$N$RATYP$SOFMAT$RIAS

The following definitions shall apply to materials in this Section and other relevant Sections%

435 ,Topsoil, shall mean the top layer of soil that can support vegetation% 0t shall include all turfacceptable for turfing%

495 ,Suitable Material, shall comprise all that is acceptable in accordance with the contract foruse in the works and which is capable of being compacted to form a stable fill having sideslopes as indicated in the &rawing% The material used in fill 4e.cept rock fill5 shall not containrock fragments with dimensions of more than A? mm%

4;5 ,1nsuitable Material, shall mean other than suitable material and shall includeI

4a5 Material from swamps! marshes or bogsJ

4b5 "eat! logs! stumps! perishable material! organic claysJ

4c5 Material susceptible to spontaneous combustionJ

4d5 Material in a froen conditionJ

4e5 +lay of li/uid limit e.ceeding A: andor plasticity inde. e.ceeding >?%

Materials stated above in d5! if otherwise suitable shall be classified suitable when unfroen%

4>5 ,@ell Graded Granular Material, consisting of gravel andor sand shall conform to +lause8:7%

4?5 ,ock fall,! coarse alluvial material shall be loose soils such as moraines! debris! or alluvialmaterial containing large blocks or large boulders% 0ndividual blocks or boulders of hardmaterials greater than :%;m;each in volume! shall be classified as hard material%

485 ,Hard Material, shall mean any material which conform to the re/uirements of Sub6clause7:;4>5

;-+ SI$$S

0S sieves shall be used for all tests% Based on 0S6>8: the standard sieves series shall be as followsI

39?J 7:J A?J 8;J ?:J >?J >:J ;A%?J ;3%?J 9?J 99%>J 9:J 37J 38J 39%?J 33%9J 3:J 7%?J =J 8%; J?%8J >%A?J >%::J9%=J 9%;8J 9J 3%AJ 3%>J 3%3=J 3J :%=?J :%A3J :%8J :%?J :%>9?J :%>::J :%;::J :%9?:J :%939J :%3=:J :%3?:J:%39?J :%:7:J :%:A? mm%

;-- SOISAN!GRA$S

B- Samplin6 an5 Samples

Sampling of soils and gravels shall be carried out as specified or as directed by the (ngineer%

Samples shall be prepared for testing as indicated in 0S 9A9: part 0! e.cept thatIa5 The mass 4in g5 of a sample re/uired for sieve analysis is about >::&! & being the

ma.imum particle sie 4mm5%

b5 Sample containing particles larger than 37 mm sie shall be prepared for compactionand +B tests as described hereunder! provided the proportion in weight of suchparticles is less than ;:O I

*n ade/uate /uantity of representative material shall be sieved over the ?: mm and 37 mmsieve% The material passing the ?: mm sieve and retained on the 37 mm sieve shall beweighed and replaced with an e/ual mass of material passing the 37 mm sieve and retainedon the >%A? mm sieve% The material for replacement shall be taken from the remaining portionof the main sample%

@hen preparing gravel samples! the aggregations of particles shall be broken with a wooden

or rubber hammer or pestle% +are shall be taken that no individual particles are crushed in theoperation%

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B* Stan5ar5 MetDo5s of Testin6

Tests on soils and gravels shall be performed in accordance with the standard methods givenin Table >::%3

TA&$;++@-7 T$STSPROC$!%R$SAPPICA&$TO!IST%R&$!.%N!ISTRI&%T$!SAMP$SOFSOISAN!GRA$S

Tests Test procedure

&etermination ofI

i5 Moisture +ontent 0S 9A9: "art 9 4ven6drying method5

ii5 Ei/uid Eimit 0S 9A9: "art ? 4+one "enetrometer or by +asagrande

*pparatus5

iii5 "lastic Eimit 0S 9A9: "art ?

iv5 "lasticity 0nde. 0S 9A9: "art ?

v5 Einear Shrinkage 0S 9A9: "art 9:

vi5 Specific Gravity of "articles 0S 9A9: "art ;

vii5 "article Sie &istribution 0S 9A9: "art >

viii5 rganic Matter +ontent 0S 9A9: "art 99 '

i.5 Total Sulphate +ontent 0S 9A9: "art 9A

.5 pH

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fre/uency re/uired when using the Sand eplacement Method! but at each nucleardensometer test location the average of three readings taken at positions rotated by7:N shall be used% * checkcomparison test using the Sand eplacement Methodshall be carried out at 3: test interval%

0nitial calibration of the nuclear density testing e/uipment shall be done by carrying out atleast fifty tests in parallel with the Sand eplacement Method for each different material

encountered% The check tests shall be used to update the initial calibration of the nucleardensity testing e/uipment%

;-* STON$) AGGR$GAT$) SAN!AN!FI$RS

B- Samplin6 an5 Preparation of Samples

Sampling shall be carried out as per *STM6&A? and the samples shall be prepared inaccordance with 0S 9;=8 or according to sampling procedures specified for the StandardMethods of testing given in Table >::%9%

B* Stan5ar5s MetDo5s of Testin6

Tests on stone! aggregate! sand and filler shall be performed in accordance with the standardprocedures given in the Table >::%9%

TA&$;++@*7 T$STSPROC$!%R$SAPPICA&$TOSTON$AGGR$GAT$AN!FI$RS

Tests Test "rocedure

&etermination ofI

i5 "article Sie &istribution 0S 9;=8 "art i

4Gradation5

ii5 +lay! Silt! &ust in *ggregates 0S 9;=8 "art 9

iii5 )lakiness inde. 0S 9;=8 "art i

iv5 Specific Gravity 0S 9;=8 "art ;

v5 Moisture +ontent 0S 9;=8 "art ;

vi5 Bulk &ensity!

.ii5 *0< 6 *+< 0S 9;=8 "art >

.iii5 "olished Stone 6:8A U

.v5 Sodium Sulphate Soundness 0S 9;=8 "art ?

.vi5 *lkali *ggregate eactivity Test 0S 9;=8 "art A

.vii5 &eleterious Substances 0S 9;=8 "art 9

.viii5 Sand (/uivalent 0S 9A9: "art ;A

.i.5 +rushing Strength of stone 0S 9;=8 "art >

;-9 C$M$NT

rdinary and High Strength "ortland +ement 4"+ and HS"+5! "ortland Slag +ement 4"S+5!"ortland "oolana +ement 4""+5 shall be sampled according to 0S ;?;? and tested according to 0S>:;3%

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+hemical and physical re/uirements for rdinary "ortland +ement! High Strength "ortland +ement!"ortland Slag +ement and "ortland "oolana +ement shall be in accordance with 0S 987! 0S =339!0S 39987! 0S >??! 0S 3>=7 respectively%

The re/uirements on their physical characteristics shall be as given in Table >::%;

TA&$;++@97 R$:%IR$M$NTSONTH$PHYSICACHARACT$RISTICSOFC$M$NT

S%% "hysical characteristics "+"S+ HS"+ Test "rocedure

i5 )ineness! m9kgI 4by Blaine's *ir "ermeability 99? 99? 0S6>:;3

method5 "art 9

ii5 Setting TimeI

4a5 Minimum 0nitial Setting Time 4minutes5 >? >?

0S >:;3 "art ?

4b5 Ma.imum )inal Setting Time 4minutes5 8:: 8::

iii Soundness b Eechatelier method! mm! 3: 3: 0S >:;3 "art ;

ma.imum

iv5 +ompressive StrengthI

Minimum *verage +ompressive Strength of

three mortar cube mm9

a ; da s 38 9A

b A da s 99 ;A 0S >:;3 "art 8

4c5 9= days ;; ?;

;-; IM$

Eimes shall be sampled and tested in accordance with BS =7: and shall comply with all re/uirementsspecified therein%

Eime for treatment of road materials shall be Hydrated +alcium Eime or Duicklime and! unlessotherwise specified! shall comply with the re/uirements given in Table >::%>%

TA&$;++@;7 R$:%IR$M$NTSOFIM$FORTR$ATM$NTOFROA!MAT$RIAS

;-/ IM$TR$AT$!MAT$RIAS

B- Samplin6

Sampling and preparation of samples of lime treated material shall be carried out as specifiedor as instructed by the (ngineer e.cept thatI

Samples containing particles larger than 37 mm shall be prepared for compaction and +Btests as specified in Sub6clause >39 435b5% 4The fraction coarser than 37 mm shall be replacedby an e/ual weight of material passing through 37mm sieve and retained on >%A? sieve5%

B* Stan5ar5 MetDo5s of Testin6

The tests on lime treated materials shall be performed in accordance with the Standardmethods given in Tables >::%3 and >::%?%

-

S% o% +haracteristics Hydrated lime Duicklime

i5 )ineness esidue on :%939 mm sieve 6 Ma.imum

esidue on :%:A? mm sieve 6 Ma.imum

3O

3:O

3:O

?:O

Vi5 +hemical re/uirements )ree lime content 6

Minimum Hydrated lime content 6 Ma.imum

?:O 8:O

?O

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TA&$;++@/7 A!!ITIONAT$STSPROC$!%R$SAPPICA&$TOIM$TR$AT$!MAT$RIAS

Tests Test "rocedure

&etermination ofI 4i5 1nconfined +ompressive

Strength 41+S5 4ii5 (ffect of immersion on

1+S 4iii5 Eime +ontent

BS379>6"art9

BS 379> 6"art 9

BS 379>6"art 9

;-, CONCR$T$

Sampling and testing on concrete shall be carried out in accordance with the standard methods givenin the Table >::%8%

TA&$;++@,7 T$STSPROC$!%R$SAPPICA&$TOCONCR$T$

Tests Test "rocedures

&etermination ofI4i5 *ir contents of fresh concrete BS 3==363:8

4ii5 &ensity of hardened concrete BS 3==3633>

4iii5 +ompressive strength of concrete cubes BS 3==36338

4iv5 Tensile splitting strength BS 3==3633A

4v5 )le.ural strength BS 3==3633=

4vi5 +ompressive strength of concrete cores BS 3==3639:

4vii5 @ater absorption BS 3==36399

4viii5 Mi.ing and sampling fresh concrete in

laboratory BS 3==3639?

4i.5 ormal curing of test specimens 49:N +

method5 BS 3==36333

4.5 *ccelerated curing of test specimens BS 3==36339

4.i5 Making test cubes from fresh concrete BS 3==363:=

on destructive tests shall be carried out in accordance with the standard metho

Standard Specifications for Building Works(DRAFT-FINAL)

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Transcript of Standard Specifications for Building Works(DRAFT-FINAL)