construction of boundary wall specifications

7/25/2019 Construction of Boundary Wall Specifications

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ONGC TRIPURA POWER COMPANY LIMITED

TECHNICALSPECIFICATION FOR

CONSTRUCTION OF BOUNDARY WALL ATPROPOSED OTPC TOWNSHIP AT KHILPARA,

TRIPURA

2 X 363.3MW

GAS BASED COMBINED CYCLE POWER

PLANT, PALATANA, UDAIPUR, TRIPURA

(This document is meant for the exclusive purpose of bidding against this specification and shall not be


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transferred, reproduced or otherwise used for purposes other than that for which it is specifically issued).


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Project: CONSTRUCTION OF BOUNDARY WALL, GATE & GATE

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TECHNICAL SPECIFICATIONS FOR CONSTRUCTION OF BOUNDARY

WALL, GATE & GATE HOUSE AT PROPOSED OTPC STAFF COLONY,KHILPARA, UDAIPUR

T A B L E O F C O N T E N T

C#")(e N'.De(c*!$&!'P"+e N'.

1.0Specifications For Excavation And Earth Work3

2.0Specifications For Cement Concrete Works5

3.0Specifications For Reinforced Concrete

!.0Specifications For Stee" Reinforcement3

5.0Specifications For Form Work!3

#.0Specifications For $rick %asonr& Work50

.0Specifications 'ranite Stone#2

(.0Specifications For Cement )"aster#5

*.0Specifications For )aintin+ Works2

10.0Specifications For )i"e Work

11.0Specifications For '"ass %osaic ,i"es -S/(2

12.0Specifications For Concertina Coi" Fencin+ -S/(3


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1.0 EARTH WORK

1.1 Ec"-"&!' I A## K!( O% S'!#(

1.1.1 A"" excavation operations mana""& or & mechanica" means sha"" inc"deexcavation and

+ettin+ ot the excavated materia"s. 4n case of excavation for trenches

asements 6ater tanks etc. +ettin+ ot sha"" inc"de thro6in+ the excavated

materia"s at a distance of at "east one metre or ha"f the depth of excavation

6hichever is more c"ear off the ed+e of excavation. 4n a"" other cases

+ettin+ ot sha"" inc"de depositin+ the excavated materia"s as specified. ,he

sse7ent disposa" of the excavated materia" sha"" e either stated as a

separate item or inc"ded 6ith the items of excavation statin+ "ead.

1.1.2 8rin+ the excavation the natra" draina+e of the area sha"" e maintained.

Excavation sha"" e done from top to ottom. 9nderminin+ or ndercttin+sha"" not e done.

1.1.3 4n firm soi"s the sides of the trenches sha"" e kept vertica" pto a depth of

2 metres from the ottom. For +reater depths the excavation profi"es

sha"" e 6idened & a""o6in+ steps of 50 cms on either side after ever& 2

metres from the ottom. A"ternative"& the excavation can e done so as to

+ive s"ope of 1:! -1 hori;onta" : ! vertica"/. Where the soi" is soft "oose or

s"sh& the 6idth of steps sha"" e sita"& increased or sides s"oped or the soi"

shored p as directed & the En+ineer


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1.1.# Whi"e carr&in+ ot the excavation for drain 6ork care sha"" e taken to ct

the side and ottom to the re7ired shape s"ope and +radient. ,he srface

sha"" then e proper"& dressed. 4f the excavation is done to a depth +reater

than that sho6n on the dra6in+ or


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as re7ired & the En+ineermechanica" e7ipments and other factors invo"ved. Contractor

sha"" ensre ever& safet& measres for the 6orkers. either an& dedction 6i""

e made nor an& extra pa&ment 6i"" e made on this accont.


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1.4n the desi+nation of concrete mix % refers to the mix and the nmer to

the specified compressive stren+th of 150 mm si;e ce at 25 da&s

2.For concrete of compressive stren+th +reater than %55 desi+n parameters

standard ma& not e app"ica"e and the va"es ma& e otained from

"iteratres and experimenta" res"ts.

3.,he characteristic stren+th is defined as the stren+th of materia" e"o6 not

percent of the test res"ts are expected to fa"".

2.2M!!/)/ Ce/e& C'&e&, M"!/)/ W"&e*0Ce/e& R"&!' "M!!/)/

2 // N'/!"#4 M"!/)/ S!5e.

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2.0 C'c*e&e W'*(

2.1 'rades of cement concrete: ,he concrete sha"" e in +rade desi+nated as

nder:

'rop'rade

Specified characteristiccompressive stren+th of150mm ce at 2( 8a&s

123

=rdinar&

Concrete

%1010

%1515

%2020

Standard

%2525%3030

%3535

%!0!0

%!5!5

%5050

%5555

?i+h Stren+thConcrete

%#0#0

%#5#5

%00

%55%(0(0

N'&e(7


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S4.=.

Exposre)"ainConcrete

ReinforcedConcrete

%inimmCementContent

%aximm

Free WaterRatio

%inim

m'radeofConcrete

%inimmCementContentRatio

%aximm

FreeWaterCement

%inimm'radeof

123!5#(

4%i"d2200.#03000.55%20

44%oderate2!00.#0%153000.50%25

444Severe2500.50%203200.!5%30

4@@er&Severe2#0

0.!5%203!00.!5

%35

@Extreme

2(00.!0%25

3#00.!%!0

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2.3

,he mixer drm sha"" e f"shed dean 6ith 6ater. %easred 7antit& of

coarse a++re+ate e p"aced first in the hopper. ,his sha"" e fo""o6ed 6ith

measred 7antit& of fine a++re+ate and then cement. 4n case fine a++re+ate

is damp ha"f the re7ired 7antit& of coarse a++re+ate sha"" e p"aced in

the hopper fo""o6ed & fine a++re+ate and cement. Fina""& the a"ance

7antit& of coarse a++re+ate sha"" e fed in the hopper

then the dr& materia"s are s"ipped into the drm & raisin+ thehopper. ,he dr&

materia" sha"" e mixed for at "east for trns of the drm. Whi"e the drm is

rotatin+ 6ater sha"" e added +rada""& to achieve the 6ater cement ratio as

specified or as re7ired & the En+ineer


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is otained. ,he mixin+ p"atform sha"" e 6ashed and c"eaned at the end ofthe da&.


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3.0 Re!%'*ce Ce/e& C'c*e&e

3.1 'enera"

3.1.1 8escription

,his section covers the re7irements for finishin+ of cement concreteproportionin+ atchin+ mixin+ testin+ p"acin+ compactin+ finishin+

ointin+ crin+ and a"" other 6ork as re7ired for cast in p"ace reinforcedconcrete. ,he contractor sha"" provide a"" the materia"s inc"din+ cementstee" "aor e7ipment form 6ork scao"din+ etc. re7ired for comp"etionof a"" reinforced concrete 6orks as per dra6in+s and docments.

Cement concrete sha"" e composed of cement fine a++re+ate coarsea++re+ate 6ater 6ith or 6ithot admixtre as approved proportioned andmixed as specified herein.

3.1.2 Re"ated Work Specified

E"se6here a/ Stee"

reinforcement

/ Form 6ork

3.1.3 App"ica"e Codes And Standards

,he codes and standards +enera""& app"ica"e to the 6ork of this section are

"isted hereinafter.

4S3(3Coarse and fine a++re+ates from natra" sorces for concrete

4S!5#Code of practice for p"ain and reinforced concrete4S51#%ethods of testin+ for stren+th of concrete4S11**%ethods of samp"in+ and ana"&sis of concrete4S1!(*)ort"and < )o;;o"ana cement4S1(3()erformed fi""ers for expansion oints in concrete non


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PART8 I


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Project: CONSTRUCTION OF BOUNDARY WALL, GATE & GATE HOUSE

,he fo""o6in+ c"ases are intended to amp"if& the re7irements of the referencedocment "isted aove and the contractor sha"" comp"& 6ith these c"ases

3.2 S)9/!&&"#(

%ateria"Report

)rior to start of de"iver& of materia"s re7ired the fo""o6in+ sha"" e smitted& the contractor to the Cons"tant > En+ineer or sorces of a"" consma"e materia"s inc"din+ cement stee"fine and coarse a++re+ates 6ater additives ricks and timer etc.

a"it& 4nspection )"an to ensre continin+ 7a"it& contro" of in+redients &periodic samp"in+ testin+ and reportin+ to the Cons"tant on the 7a"it& of

materia"s ein+ spp"ied.

3.3 P#"& A E:)!$/e&

,he contractor sha"" smit the fo""o6in+ to the Cons"tant 6e"" inadvance.

,he proposed pro+ram methods and detai"s of p"ant and E7ipment fore sed to testin+ of in+redients and concrete samp"es.

,he proposed pro+ramme methods and detai"s of p"ant e7ipment to esed for concrete 6ork.

3.! Re$'*&( F'* I($ec&!' A Te(&!+

8rin+ concretin+ operations the contractor sha"" condct inspection andtestin+ as descried in ssection 3.15.2 herein and a"" reports thereon sha""e smitted in smmar& form to the Cons"tant > En+ineer


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Fresh samp"es sha"" e deposited 6ith the Cons"tant > En+ineer En+ineer

En+ineer


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apparats for carr&in+ ot each test and for spp"&in+ test records to theCons"tant.

/ For fair faced concrete the contractor sha"" ensre that a++re+ates are freefrom iron p&rites and imprities 6hich ma& case disco"oration.


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c/ ,he fine a++re+ates sha"" e river sand stone dst or other approved sand.4t sha"" e free from c"a& "oan earth or ve+eta"es matter and from sa"t orother harmf" chemica" imprities 4t sha"" e dean sharp stron+ an+"ar andcomposed of hard si"iceos materia"

,he +radin+ of sand as determined & the method prescried in 4S: 23(# part 4sha"" e 6ithin the "imits of +radin+ ;one 444 +iven in ,a"e 1. When the+radin+ fa""s otside the percenta+e "imits +iven for sieves other than #00micron 300 micron and 150 micron -4.S/ sieves & not more 5 percent it sha""e re+arded as fa""in+ 6ithin this ;one. ,he 5 percent can e excesssmission on one more sieves.

TABLE ;

FINE AGGREGATE

I. S. S!e-e Pe*ce&"+e $"((!+ %'* G*"!+

G=E4G=E44G=E444G=E 4@

10 mm100100100100

!. 5 %%*0


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c"ean non< poros sita"& +raded in si;e 6ith or 6ithot rokenfra+ments and free from f"at partic"e of sha"e c"a& si"t "oam and otherimprities.


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Except 6here it can e sho6n to the satisfaction of the Cons"tant than aspp"& of proper"& +raded a++re+ate of niform 7a"it& can e maintainedover the period of the otainin+ the coarse a++re+ate in dierent si;es "endin+ them in correct proportions as and 6hen re7ired.

,he maximm si;e of coarse a++re+ate sha"" e sch that the concrete can ep"aced 6ithot diic"t& so as to srrond a"" reinforcement thoro+h"& andfi"" the comers of form 6ork.

3.#.3 Water

Water sed in the 6orks sha"" e pota"e 6ater and free from de"eteriosmateria"s. Water sed for mixin+ and crin+ concrete as 6e"" as forcoo"in+ and>or 6ashin+ a++re+ate sha"" e fresh and c"ean free frominrios amonts of oi" sa"ts acids a"ka"i other chemica"s and or+anicmatter.

Water sha"" e from the sorce approved & the Cons"tant > En+ineerEn+ineer


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4n reinforced concrete the ch"oride ion of an& admixtre as determined inaccordance 6ith 4S: #*25 and the tota" ch"oride ion in a"" admixtres sed inconcrete mix sha"" not exceed 0.30n percent & 6ei+ht of cement.

,he admixtres 6hen sed sha"" conform to 4S: *103. ,he sitai"it& of a""

admixtres sha"" e verified & tria" mixes.

,he addition of ca"cim ch"oride to concrete containin+ emedded meta" 6i""not e permitted nder an& circmstances.

Re+ardin+ admixtres 6hen sed sha"" e ased on "in+oEn+ineer


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,he contractor sha"" e responsi"e for the stora+e of cement at the site andno c"aim 6i"" e entertained in the event of an& dama+e occrrin+ to cementde to fa"t& stora+e & the contractors or on accont of his ne+"i+ence.

Cement stored on site for a period "on+er than ei+ht 6eeks sha"" e tested to

the satisfaction of the Cons"tant>En+ineer


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a/ For concretin+ in ver& narro6 space or in ver& sma"" thickness 12mm


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/ For a"" reinforced concrete 6ork except in massive fondations

20 mm c/ For a""

ordinar& p"ain concrete and massive reinforced fondations 10 mm

A"" mix desi+n +rades vi;. %10 %15 %20 %25 %30 etc. sha"" e desi+nedand have minimm cement content as fo""o6s:

'rade t& -in

k+>m3/ %


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chan+e in proportion. ,heEn+ineer sha"" have athorit& at an& time to check 6hether the mixin+ ofconcrete is ein+ carried ot accordin+ to the approved proportions.

For the maor and important RC 6orks and for a"" specia" 6orks the desi+n ofmixes sha"" e made & the Contractor at his o6n cost for each +rade ofconcrete as 6e"" as for varios 6orkai"it&. ,he desi+n of mixes sha"" e madeaccordin+ to re"evant 4.S. codes or to approved standard methods.


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,he concrete made & desi+nin+ the mix is termed hereinafter as I8esi+n %ixConcreteI.

,he Contractor sha"" se on"& desi+n mix and 6ei+h atchin+ for RCC. =n"& ifspecia""& permitted & the En+ineer he 6i"" e a""o6ed to se nomina" mix

or vo"me atchin+. ,he Contractor sha"" make avai"a"e at "east t6o concretemixers 6ith 6ei+h atchin+ faci"it&. ?e sha"" a"so make avai"a"e concretece testin+ machine ce mo"ds etc. to test the crshin+ stren+th ofconcrete at site. ?e sha"" a"so indicate 6hi"e smittin+ the $id the methodsproposed to carr& ot the desi+ns for the mix.

3.11 W"&e*cement ratio is stip"ated in the desi+n or dra6in+a"on+ 6ith the characteristic +rade of concrete the desi+n of mix sha"" ecarried ot & adstin+ the other varia"e factors to otain characteristicstren+th of concrete 6ith stip"ated 6ater>cement ratio.

4n the strctres 6here the impermeai"it& and shrinka+e of concrete have animportant earin+ on the drai"it& and serviceai"it& of the strctres schas 6ater retainin+ strctres asements nder+rond

premises tnne"s pmp hoses exposed strctresnear sea side or deserts precement ratio sha"" e kept "o6 and prefera"& not exceedin+ 0.!5.

,he 6ater cement ratio as achieved in the mix desi+n or as specified inthe dra6in+s sha"" e adhered to strict"& and sha"" not e varied 6ithotthe permission of the En+ineer.

3.12 W'*"9!#!&=

,he 6orkai"it& of fresh concrete sha"" e sch that the concrete is stsita"e for the conditions of hand"in+ and p"acin+ so that after compaction itecomes comp"ete"& consistent and homo+eneos"& srronds a"" thereinforcement and comp"ete"& fi""s the form6ork.

,he 6orkai"it& of fresh concrete at the p"ace of atchin+>mixin+ sha"" emeasred & compactin+ factor test and at the p"ace of disposition & meansof s"mp test. 8rin+ the fina"i;ation of tria" mixes the re"ationship et6eencompactin+ factor and s"mp test sha"" e esta"ished for each +rade ofconcrete as 6e"" as for varios "eve"s for

6orkai"it&.

orma""& in the condition of "o6 6ater cement ratio as 6e"" as formedim>hi+h 6orkai"it& the 6orkai"it& sha"" e achieved & increasin+ thecement content.

4n cases 6here the cement content is to e "imited to redce the heat ofh&dration and the 6ater > cement ratio is a"so to e kept "o6 to redce thepermeai"it& or de to other re7irements the desired 6orkai"it& ma& eachieved 6ith the se of "imited doses of p"astici;er or air entrainin+ a+ent. 4nsch cases the method of mixin+ and dosa+e of the


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p"asticiser > air entrainin+ a+ent sha"" e accordin+ to the manfactrerBsspecification and 6ith the approva" of the En+ineer.

Consistenc& and 6orkai"it& of concrete sha"" e checked & measrin+ thes"mp of a trncated cone of concrete strai+ht from the mixer nder norma"

6orkin+ conditions. ,he conica" mo"d sha"" e of meta" 300 mm hi+h and100 mm and 200 mm in diameter at top and ase respective"&.

%o"ds sha"" e prepared & the Contractor. ,he s"mp ran+e of concrete sha""e as per the ta"ation +iven e"o6 as 6e"" as standards.

S"mp tests sha"" e performed as per 4S:1((1 at interva"s esta"ished & theEn+ineer at the ContractorBs cost in sch a 6a& as to check that thede+ree of consistenc& esta"ished & the En+ineer for 6ork in pro+ress ismaintained. ,he ta"e e"o6 +ives the +enera" s"mp ran+e to e fo""o6ed forvarios t&pes of constrction n"ess other6ise sho6n on dra6in+s orinstrcted & the En+ineer.

@arios t&pes of constrction ...S"mp -in mm/... %ax.%in.

Reinforced fondation 6a""s and footin+s525

)"ain footin+s caissons and strctre 6a""s525Compressor fondations and for heav&strctions525)mps and other misc. e7ipment525

Co"mns s"as eams and reinforced10050

3.13 D)*"9!#!&=

,he drai"it& of concrete dependin+ on the exposre condition is to etaken into accont 6hi"e desi+nin+ the mix. For +iven a++re+ates the cementcontent sho"d e sicient to make sicient"& "o6 6ater>cement ratio andAppendix A of 4S: !5# sha"" e taken as +ide"ine for drai"it& considerations.

3.1! T*!"# M!e(

After approva" of the mix desi+n & the En+ineer the Contractor sha"" makein presence of the En+ineer the tria" mixes for each +rade of concrete as 6e""as for re7ired 6orkai"it&.

$efore startin+ the tria" mixes necessar& preparator& 6orks "ikedetermination of sieve ana"&sis of the a++re+ates densities of dierentin+redients moistre contents in the a++re+ates sha"" e comp"etedaccordin+ to the re"evant $4S Codes.

Each tria" mix sha"" e hand"ed and compacted & the method 6hich theContractor proposes to se for that mix in the 6orks and the mixes sha"" notsho6 tendenc& of inade7ate compaction & the method proposed.

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,he compactin+ factor and the s"mp of each tria" mix sha"" e determinedimmediate"& after mixin+ and the va"es sha"" not exceed the maximm va"eotained in the mix desi+n.

Five -5/ 150 mm test ces sha"" e made from each tria" mix. ,hese sha"" e

cred and tested in accordance 6ith re"evant $4S codes. 4n orderto have the specified characteristic stren+th in the fie"d the concrete mixas desi+ned in the desi+n mix sha"" have hi+her avera+e compressive stren+thdependin+ on the de+ree of 7a"it& of contro" at site.

$efore commencement of the concretin+ 6orks of partic"ar +rade ofconcrete the Contractor mst comp"ete the 6ork of tria" mixes andsse7ent testin+ of the test ces otained there from and the desire ofthe approved mix for that partic"ar +rade of concrete.

,he entire cost of a"" the tria" mixes inc"din+ a"" the preparator& 6orks for tria"mixes preparation of test ces and their testin+ sha"" e orne & the

Contractor.

3.15 N'/!"# M! C'c*e&e

omina" mix concrete ma& e sed for a"" concrete of +rade %


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4n partic"ar cases or 6here 6ei+htvo"me re"ationship of the a++re+atessha"" e made & the Contractor to the satisfaction of the En+ineer. Where

a++re+ates are moist and vo"me atchin+ is adopted a""o6ance sha"" e"kin+ in accordance 6ith 4S -)art 444/.

Sita"e adstments sha"" e made for the variation in the 6ei+ht ofa++re+ates de to variation in their moistre contents.

3.1( W"&e*

3.1(.1 'enera"

Water ma& e measred either & 6ei+ht or & vo"me. When measred &vo"me it sha"" e & 6e"" ca"irated conica" shaped ar or vesse" or from a

ca"irated tank fi""ed to the mixer.

3.1(.2 Adstment of Water 8e to %oistre Contents in Coarse and Fine A++re+ates

4t is ver& important to maintain the 6ater cement ratio constant at its correctva"e. For the correct determination of the amont of 6ater to e added inthe concrete mix to maintain the 6ater cement ratio constant the amont ofmoistre content in oth coarse and fine a++re+ates sha"" e taken intoconsideration e checked as fre7ent"& as possi"e the fre7enc& for a +iven

o ein+ determined & the En+ineer accordin+ to 6eather condition.

3.1(.3 8etermination of %oistre Content in the A++re+ates

8etermination of moistre content in the a++re+ates sha"" e accordin+ to 4S23(# -)art< 444/.Where tests are not condcted the amont of srface 6aterma& e estimated from the fo""o6in+ ta"e:

A++re+atesSrface 6ater carried &

D &6ei+ht

">m3

@er& 6et sand.50120

%oderate"& 6etsand

5.00(0

%oist Sand2.50!0%oist

1.25coarser the a++re+ate "ess the 6ater it 6i"" carr&

3.1(.! Admixtres


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An& so"id admixtre to e added sha"" e measred & 6ei+ht t "i7id orsemi


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3.21 P*e$"*"&'*= W'*(


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Earth fondation on 6hich direct p"acement of concrete is specified sha""e rammed and conso"idated as directed & the En+ineer sch that it doesnot crm"e and +et mixed 6ith concrete drin+ or after p"acement. 4f thefondation is 7ite 6et the same sha"" e kept dr& and then sicient"&

conso"idated if necessar& a thin top "a&er of the 6et soi" sha"" e removedand rep"aced & sand or other sita"e materia"s as directed & the En+ineer6ithot extra cost Care sha"" a"so e taken that earth from the sides a"sodoes not +et mixed 6ith the concrete drin+ or after p"acement efore it hassicient"& set and hardened.

,he earth fondation over 6hich concrete is to e p"aced direct"& sha"" not ekept aandon at the specified "eve" and concrete sha"" e p"aced immediate"&fo""o6in+ other6ise sita"e measres sha"" e taken as directed & theEn+ineer 6ithot extra cost.

3.21.2 For Constrction Koints

Concrete sha"" e cast as far as possi"e continos"& nti" the parts ofstrctre to e i"t are finished. Sho"d this not e feasi"e the t&pe nmerand "ocation of constrction oints sha"" e approved & the En+ineer prior top"acin+ concrete.

A"" sch oints sha"" have continos s7are ond +rooves to prodcesstantia" and 6ater


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4mmediate"& efore depositin+ fresh concrete the exposed srface sha"" ec"eaned of forei+n matter & frther 6ire rshin+ if necessar&. 4t sha"" thene thoro+h"& 6ashed and srp"s 6ater removed. ,he srface 6hi"e sti""moist sha"" e covered 6ith "a&er of

1:1 cement mortar 6hich mst e vi+oros"& stipp"ed into the srface &means of a sti rsh the depositin+ of the fresh concrete fo""o6in+ onc"ose"&. )ockets to form ke&s sha"" e "eft in the srface of the concrete atconstrctiona" oints 5 mm deep and

approximate"& e7a" to 20D of the exposedsrface.

A"" costs in connection 6ith the formin+ of constrction oints sha"" e to theaccont of the Contractor and sha"" e deemed to e inc"ded in the rates forconcretin+ and form6ork and sha"" not e separate"& paid for. 4n a co"mnthe oint sha"" e formed 5 mm e"o6 the "o6est soffits of the eamsinc"din+ hanches if an&.

Concrete in a eam sha"" e p"aced thro+hot 6ithot a oint t if theprovision of a oint is navoida"e then the oint sha"" e vertica" and at thecentre of or 6ithin midd"e third of the span n"ess other6ise sho6n on thedra6in+s.

3.21.3 =n @ertica" Srfaces of %asonr&

When the concrete is p"aced on the vertica" srface of masonr& -as in the caseof thin concrete fins proected from the vertica" masonr& srface/ a +roove ofdimension as directed & the En+ineer sha"" e ct in the masonr& to ensre a

proper ond and the srface sha"" e c"eaned thoro+h"&. $efore thep"acement of concrete the srface sha"" e kept moist & spra&in+ 6ater at"east for the period of 2 hors and a thick coat of cement s"rr& sha"" eapp"ied immediate"& efore the p"acement of concrete.

3.21.! 4nside the Form Works -C"eanin+ Srface )reparation etc./

,he interior of the form 6orks 6here the concrete is to e p"aced sha"" ethoro+h"& 6ashed & hi+h pressre 6ater et or air et to comp"ete"& c"eanthe entire vo"me from the dirts +rease>oi" forei+n and de"eterios materia"setc. ,he reinforcements sha"" e comp"ete"& c"eaned and free from a"" sorts ofdirts +rease>oi" rst forei+n>de"eterios materia"s etc. $efore p"acement ofconcrete the form 6orks comin+ in contact 6ith concrete sha"" e coatedhi+h"& 6ith form oi" or ra6 "inseed oi"& materia" or provided 6ith an&approved materia" to prevent adhesion of concrete to the form 6ork ttmost care sha"" e taken so that sch oi"& materia" does not come in contact6ith the reinforcement.

3.22 P#"c!+ " C'/$"c&!' '% C'c*e&e

$efore p"acin+ the concrete the Contractor sha""


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ensre that:



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1. A"" mixin+ and p"acin+ e7ipment is thoro+h"&c"eaned

2. A"" concretin+ space is free from deris andrish

3. A"" forms have een thoro+h"& 6etted or oi"ed and firm"& insta""ed in "ineand p"m to the En+ineerBs approva".

!. A"" reinforcement is c"eaned of "oose rst sca"es and other inriosadherents and is firm"& ond and correct"& p"aced and has een so approved& the En+ineer.

5. A"" inserts s"eeves fondation o"ts and emedded parts have eencorrect"& and firm"& insta""ed to conform to the En+ineerBs dra6in+s and haveeen caref""& checked to comp"& 6ith the dra6in+s. Specia" care sha"" etaken to "ocate and check s"eeves or inserts 6hich ma& not e s&mmetrica""&

p"aced 6ith respect to centre "ines.

,he Contractor and En+ineer sha"" separate"& inspect and check the aovementioned points and record and si+n the res"ts in a re+ister 6hich sha"" emaintained & the Contractor in a approved form. o concrete sha"" e p"aced6ithot the En+ineer havin+ inspected and approved in 6ritin+. 4nspite ofensrin+ the aove re7irements the Contractor sha"" fi"" por cardsfrnishin+ the necessar& detai"s of the o d"& si+ned & the En+ineer. ,hisho6ever 6i"" not aso"ve the Contractor from his responsii"it& to correct"&execte the 6ork. )or cards sha"" contain the fo""o6in+ information:

8esi+n4ndex

8CamercoeicientLen+th of memer inmeter8epth ofmemerinmeter

0.0##

0.030.0320.020

0.0(#

0.0!#

5.5 E*ec&!' O% F'*/'*

Forms sha"" e sed 6herever necessar& to confine the concrete drin+viration and to shape it to the re7ired "ine. ,he form6ork sha"" conform toshapes "ines "eve"s and dimensions of the concrete sections sho6n on thedra6in+s.

Forms sha"" have sicient stren+th to 6ithstand the pressre res"tin+ fromp"acement and viration of concrete and sha"" e maintained ri+id"& inposition. Form 6ork sha"" e ade7ate"& spported & ade7ate nmer andsi;e of strts races ties and props to ensre ri+idit& of forms drin+concretin+. Where props rest on natra" or fi""ed p +rond to avoid an&sett"ement the soi" sha"" e thoro+h"& compacted and ases of props sha"" esicient si;e so as to restrict the earin+ on the +rond to 50 t> s7m

Forms sha"" e ti+ht eno+h to prevent "oss of mortar from the concrete and toprodce dense homo+enos and niform"& co"ored concrete

comp"ete"& free from hone&comin+ or srface ro+hness. Koints inform6ork sha"" e desi+ned to prevent "eaka+e not on"& et6een individa"e"ements formin+ the pane"s t a"so from the hori;onta" and vertica" nctionet6een the pane"s themse"ves.

4f form 6ork is he"d to+ether & o"ts or 6ires those sha"" e so fixed that noreinforcement ar is exposed on srface a+ainst 6hich concrete is to e "aid.

,he Cons"tant ma& at his discretion a""o6 the contractor to se tie o"tsrnnin+ thro+h the concrete at his o6n cost.

?o"e "eft in the concrete & these tie


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5.# C#e"!+ A O!#!+ O% F'*/(

At the time concrete is p"aced in the forms the srface of the forms in contact6ith the concrete sha"" e free from encrstations of mortar +rot or otherforei+n materia"s. ,emporar& openin+s sha"" e "eft at the ottom of

form6ork to ena"e sa6dst shavin+s 6ire cttin+s and other forei+nmateria" to e 6orked ot form the interior of the forms efore the concrete isp"aced.

,he srface of the forms to e in contact 6ith the concrete sha"" e coated6ith an approved coatin+ that 6i"" eective"& prevent stickin+ and 6i"" notstain the concrete srfaces. After each se the srfaces of forms in contact6ith concrete sha"" e c"eaned 6e"" sett"ed and treated 6ith form oi" approved& the Cons"tant En+ineer


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Form 6ork sha"" e removed in sch a manner so as not to impairsafet& and serviceai"it& of the strctre 4t sha"" e removed +rada""& toprevent sdden app"ication of "oads to the concrete A"" concrete to eexposed sha"" have sicient stren+th to prevent an& dama+e cased &

remova" of form6ork.

5..1 ?ackin+:

4mmediate"& after remova" of forms the concrete srface intended to eeither p"astered or finished sha"" e ro+hened 6ith rsh hammer or6ith chise" and hammer as directed & the constrction mana+er to makethe srface sicient"& coarse and ro+h to provide a ondin+ ke& for p"aster.

o extra pa&ments sha"" e made to the Contractor for sch 6ork on concretesrface after remova" of the form 6ork.

o pa&ment sha"" e made for temporar& form6ork sed in concretin+ or forform 6ork re7ired for oints or "k


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5.* F'*/ W'* F'* S#'$e S)*%"ce(

Forms for s"oped srfaces sha"" e i"t so that the form6ork can e p"aced

oard


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"oss 6ith tie rod positions and direction of oards caref""& contro""ed Sa6noards sha"" e set hori;onta""& vertica""& or at an inc"ination as sho6n in thedra6in+s. A"" o"ts ho"es sha"" e accrate"& a"i+ned hori;onta""& and vertica""&and sha"" e fi""ed 6ith matchin+ mortar recessed 5 mm ack from thesrrondin+s concrete face.

For exposed concrete srfaces sha"" e constrcted 6ith +rade strips -thenderside of 6hich indicates top of por/ at hori;onta" constrction ointsn"ess the se of +roove strips is specified on the dra6in+s Sch forms sha""e removed and reset from "ift to "ift. Sheathin+ of reset forms sha"" eti+htened a+ainst the concrete so that the forms 6i"" not spread and permitarpt irre+"arities or "oss of mortar Spp"ementar& from ties sha"" e sedas necessar& to ho"d the reset forms ti+ht a+ainst the concrete.

For fair faced concrete the position of thro+h o"ts 6i"" e restricted and+enera""& indicated in the dra6in+s.

Chamfer strips sha"" e paced in the corners of forms for exposed exteriorcorners so as to prodce 20 mm eve"ed ed+es except 6here other6isesho6n in the dra6in+s. 4nterior corners ed+es at formed oints sha"" note eve"ed n"ess sho6n on the dra6in+s. %o"din+s for +rooves dripcorses and ands sha"" e made in the form itse"f.

,he 6ood p"anks p"&6ood and stee" p"ates sed in form6ork for otainin+exposed srfaces sha"" not e sed for more than 3 times in case of 6oodp"anks # times for p"&6oods and 10 times for stee" p"ates respective"&.?o6ever no forms 6i"" e a""o6ed for rese if in the opinion of theCons"tant>En+ineer


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#.0 B*!c W'*

#.1 C#"((!%!c"&!'7

,he rick 6ork sha"" e c"assified accordin+ to the c"ass desi+nation ofrick sed.

#.2 M'*&"*:

,he mortar for the rick 6ork sha"" e as specified and conform to acceptedstandards. Lime sha"" not e sed 6here reinforcement is provided in rick6ork.

#.3 S'"!+ '% B*!c(7

$ricks sha"" e soaked in 6ater efore se for a period for the 6ater to stpenetrate the 6ho"e depth of the ricks. A"ternative"& ricks ma& eade7ate"& soaked in stacks & profse"& spra&in+ 6ith c"ean 6ater at re+"arinterva"s for a period not "ess than six hors. ,he ricks re7ired formasonr& 6ork sin+ md mortar sha"" not e soaked. When the ricks aresoaked the& sha"" e removed from the tank sicient"& ear"& so that at thetime of "&in+ the& are skin


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?eader ond sha"" e sed in fondation footin+s n"ess thickness of 6a""s-6idth of footin+s/ makes the se of headers impractica"e. Where thicknessof footin+ is niform for a nmer of corses the top corses of footin+ sha""e headers.

A"" "oose materia"s dirt and set "mps of mortar 6hich ma& e "a&in+ over thesrface on 6hich rick 6ork is to e fresh"& started sha"" e removed 6ith a6ire rsh and srface 6etted. $ricks sha"" e "aid on a f"" ed of mortar.When "a&in+ each rick sha"" e

proper"& edded and set in position & +ent"& pressin+ 6ith the hand"e oftro6e". 4tsinside face sha"" e ttered 6ith mortar efore the next rick is "aid andpressed a+ainst it. Koints sha"" e f""& fi""ed and packed 6ith mortar sch thatno ho""o6 apace are "eft inside the oints.

,he 6a""s sha"" e taken p tr"& in p"m or tre to the re7ired atter 6herespecified. A"" corses sha"" e "aid tr"& hori;onta" and a"" vertica" oints

sha"" e tr"& vertica". @ertica" oints in the a"ternate corse sha"" comedirect"& one over the other. oin ams and other an+"es sha"" e proper"&p"med as the 6ork proceeds. Care sha"" e taken to keep the pretendsproper"& a"i+ned 6ithin fo""o6in+ maximm permissi"e to"erances.

8eviation from vertica" 6ithin a store& sha"" not exceed # mm per3m hei+ht.

8eviation in vertica"it& in tota" hei+ht of an& 6a"" of i"din+ more than onestore& in hei+ht sha"" not exceed 12.5 mm.

8eviation from position sho6n on p"an of an& rick 6ork sha"" not exceed 12.5

mm. Re"ative disp"acement et6een "oad earin+ 6a"" in adacent store&

intended to e

vertica" a"i+nments sha"" not exceed#mm.

A set of too"s comprisin+ of 6ooden strai+ht ed+e %asonic spirit "eve"ss7are 1 meter r"e "ine and p"m sha"" e kept on the site of 6ork for ever&3 masons for proper check drin+ the pro+ress of 6ork.

A"" 7oins sha"" e accrate"& constrcted and the hei+ht of rick corses sha""e kept niform. ,his 6i"" e checked sin+ +radated 6ooden strai+ht ed+eor store& rod indicatin+ hei+ht of each corse inc"din+ thickness of oints.

,he position of damp proof corse 6indo6 si""s ottom of "inte"s top of the6a"" etc. a"on+ the hei+ht of the 6a"" sha"" e marked on the +radatedstrai+ht ed+e or store& rod. Acte and otse 7oins sha"" e onded 6herepractica"e in the same 6a& as s7are 7oins. =tse 7oins sha"" e formed6ith s7int sho6in+ there 7arters rick on one face and 7arter rick onthe other.

,he rick 6ork sha"" e i"t in niform"a&ers.


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o part of the 6a"" drin+ its constrction sha"" rise more than one meteraove the +enera" constrction "eve". )arts of 6a"" "eft at dierent "eve"s sha""e raked ack at an an+"e of !5 de+ree or "ess 6ith the hori;onta". ,oothin+sha"" not e permitted as an


Page 51


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a"ternative to rankin+ ack. For ha"f rick partition to e ke&ed into main6a""s indents sha"" e "eft in the main 6a""s.

A"" pipe fittin+s and specia"s spots ho"d fasts and other fixtres 6hich arere7ired to e i"t into the 6a""s sha"" e emedded as specified in their

correct position as the 6ork proceeds n"ess other6ise directed & theEn+ineer


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srronded & "oose stones and sha"" have sfficient fa"" to drain ot the6ater 7ick"&

-ote: 6ork of providin+ "oose stone 6i"" e pa&a"e extra/.

Work of cttin+ chases 6herever re7ired to e made in the 6a""s for hosin+

'.4. pipes C4 pipe or an& other fixtres sha"" e carried ot in varios "ocations as per+ide"ines +iven e"o6:nm2 per

minte ti"" the fai"re of the specimen occrs.

#.15.! Reportin+ the ,est res"ts.

,he compressive stren+th of each specimen sha"" e ca"c"ated in > nm2 as

nder: Compressive Stren+th P %aximm "oad at fai"re - in / > Area of

Specimen -4n S7 mm/4n case the compressive stren+th of an& individa" rick tested exceeds thepper "imit of the avera+e compressive stren+th specified for the

correspondin+ c"ass of rick the same sha"" e "imited to the pper "imit ofthe c"ass specified in #.1.1 for the prpose of ca"c"atin+ the avera+ecompressive stren+th. Compressive stren+th of a"" the individa" rickscomprisin+ the samp"e sha"" e avera+ed and reported.

#.15.5 Criteria for conformit& : 61/ x100

#.1#.5 Criteria for Conformit&:

A "ot sha"" e considered havin+ satisfied the re7irements of 6aterasorption if the avera+e 6ater asorption is not more than 20 D & 6ei+ht.


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.0 P'#!(he G*"!&e S&'e S#"9( F'* F#''*!+, S&e$(, S&"!*(, C#"!+O P"&*=

A W"(h B"(!

C')&e*(

)rovidin+ fixin+ +ranite of approved 7a"it& and co"or of re7ired si;e mmdo"e po"ished %>C ct of 20mm thick over f"oor srface in proper "ine.Leve" in C% 1:! inc"din+ finishin+ the oint 6ith matchin+ co"or cementpo"ishin+ the top srface etc. comp"ete as per instrction of E4C> Cons"tant.

'ranite stone sha"" e of est 7a"it& machine po"ished %achine Ct and ofapproved co"or dense and homo+enos in textre free from cracks deca&6eatherin+ and f"a6s. ,he stone sha"" e of re7ired si;e and sha"" e 20 mmthick. ,he materia" sha"" have to e approved & Cons"tant efore and afterprocrement. $efore "a&in+ f"oorin+ the srface sha"" e paved and

thoro+h"& hacked c"eaned off a"" mortar sca"es "oose materia"s etc. n"essand nti" the srface is approved & Cons"tant > En+ineer En+ineer En+ineer< in


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4t sha"" e as specified in s head(.0.

.5 D*e((!+ '% S#"9(

Ever& stone sha"" e ct to the re7ired si;e and shape fine chise" dressed ona"" sides tothe f"" depth so that a strai+ht ed+e "aid a"on+ the side of the stone sha"" ef""& in contact 6ith it. ,he top srface sha"" a"so e fine chise" dressed toremove a"" 6aviness. 4n case machine ct s"as are sed fine chiese"dressin+ of machine ct srface need not e done provided a strai+ht ed+e"aid an& 6here a"on+ the machine ct srfaces is in contact 6ith ever& pointon it. ,he sides and top srface of s"as sha"" e machine red or ta"ered 6ith coarse sand efore pavin+. A"" an+"es and ed+es of the mar"es"as sha"" e tre s7are and free from chippin+s and the srface sha"" etre and p"ane. ,he thickness of the s"as sha"" e 1( 30 or !0 mm asspecified in the description of the item. ,o"erance of J 3D sha"" e a""o6ed

for the thickness. 4n respect of "en+th and readth of s"as a to"erance of J 2Dsha"" e a""o6ed.

.# L"=!+

$ase concrete or the RCC s"a on 6hich the s"as are to e "aid sha"" ec"eaned 6etted and mopped. ,he eddin+ for the s"as sha"" e 6ith cementmortar 1:! -1 cement: ! coarse sand/ or as +iven in the description of theitem.

,he avera+e thickness of the eddin+ mortar nder the s"asha"" e 20mm and the thickness at an& p"ace nder the s"a sha"" e not "ess

than 12 mm. ,he s"as sha"" e "aid in the fo""o6in+ manner:

%ortar of the specified mix sha"" e spread nder the area of each s"aro+h"& to the avera+e thickness specified in the item. ,he s"a sha"" e6ashed c"ean efore "a&in+. 4t sha"" e "aid on top pressed tapped 6ith6ooden ma""et and ro+ht to "eve" 6ith the adoinin+ s"as. 4t sha"" e "iftedand "aid aside. ,he top srface of the mortar sha"" then e corrected &addin+ fresh mortar at ho""o6s. ,he mortar is a""o6ed to harden a it and

cement s"rr& of hone& "ike consistenc& sha"" e spread over the same at therate of

!.! k+ of cement per s7m. ,he ed+es of the s"a a"read& paved sha"" ettered 6ith +re& or 6hite cement 6ith or 6ithot admixtre of pi+ment tomatch the shade of the mar"e s"as as +iven in the description of the item.

,he s"a to e paved sha"" then e "o6ered +ent"& ack in position and tapped6ith 6ooden ma""et ti"" it is proper"& edded in "eve" 6ith and c"ose to theadoinin+ s"as 6ith as fine a oint as possi"e.

Sse7ent s"as sha"" e "aid in the same manner. After each s"a has een"aid srp"s cement on the srface of the s"as sha"" e c"eaned o. ,hef"oorin+ sha"" e cred for a minimm period of seven da&s. ,he srface of the


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f"oorin+ as "aid sha"" e tre to "eve"s



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and s"opes as instrcted & the En+ineerorin simp"e re+"ar pattern>desi+n as descried in item of 6ork and>or dra6in+.

. P'#!(h!+ " F!!(h!+

S"i+ht nevenness at the meetin+ ed+es of s"as sha"" then e removed &fine chise""in+ and finished in the same manner as specified in 11.10.3except that cement s"rr& 6ith or 6ithot pi+ments sha"" not e app"ied onthe srface efore each po"ishin+.

.( Me"()*e/e&(

%ar"e stone f"oorin+ 6ith dierent kind of mar"e sha"" e measredseparate"& and in s7are metre correct to t6o p"aces of decima". Len+th andreadth sha"" e measred correct to a cm efore "a&in+ skirtin+ dado or 6a""p"aster. o dedction sha"" e made nor extra paid for voids not exceedin+0.20 s7are metre. 8edctions for ends of dissimi"ar materia"s or otherartic"es emedded sha"" not e made for areas not exceedin+0.10 s7are metre. othin+ extra sha"" e paid for "a&in+ the f"oor atdierent "eve"s in the same room. Steps and treads of stairs paved 6ithmar"e stone s"as sha"" a"so e measred nder the item of %ar"e Stonef"oorin+. Extra sha"" ho6ever e paid for sch areas 6here the 6idth oftreads does not exceed 30 cm. osin+ for treads sha"" e measred in rnnin+metre and paid for extra. ,he 6idth of treads sha"" e measred from theoter ed+e of the nosin+ as "aid efore providin+ the riser.

.* R"&e

,he rate sha"" inc"de the cost of a"" materia"s and "aor invo"ved in a"" theoperations descried aove. ?o6ever extra sha"" e

paid for makin+ specia" t&peof pattern>desi+n>f"o6ers as per dra6in+s. o dedctions sha"" e made in rateeven if f"oorin+ is done 6ithot an& pattern>desi+n.


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(.0 Ce/e& P#"(&e*

(.1 Ce/e& P#"(&e*

,he cement p"aster sha"" e 12 mm 15 mm or 20 mm thick as specifiedin the item.

(.1.1 Sc"1'#.!+

For a"" exposed rick 6ork or ti"e 6ork do"e scaffo"din+ independent of the6ork havin+ t6o sets of vertica" spports sha"" e provided. ,he spports sha""e sond and stron+ tied to+ether 6ith hori;onta" pieces over 6hichscao"din+ p"anks sha"" e fixed.

For a"" other 6ork in i"din+s sin+"e scao"din+ sha"" e permitted. 4n schcases the inner end of the hori;onta" scao"din+ po"e sha"" rest in a ho"e

provided on"& in the header corse for the prpose. =n"& one header foreach po"e sha"" e "eft ot. Sch ho"es for scaffo"din+ sha"" ho6ever note a""o6ed in pi""ars>co"mns "ess than one metre in 6idth or immediate"&near the ske6 acks of arches. ,he ho"es "eft in masonr& 6orks for scao"din+prposes sha"" e fi""ed and made +ood efore p"asterin+.

ote : 4n case of specia" t&pe of rick 6ork scao"din+ sha"" e +otapproved from

En+ineer


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serve as +a+es. ,he srfaces of these +a+ed areas sha"" e tr"& in thep"ane of the finished p"aster srface. ,he mortar sha"" then e "aid on the 6a""



118/148


et6een the +a+es 6ith tro6e". ,he mortar sha"" e app"ied in a niformsrface s"i+ht"& more than the specified thickness. ,his sha"" e ro+ht to atre srface & 6orkin+ a 6ooden strai+ht ed+e reachin+ across the +a+es6ith sma"" p6ard and side6a&s movements at a time. Fina""& the srfacesha"" e finished off tre 6ith tro6e" or 6ooden f"oat accordin+ as a smooth or

a sand& +ran"ar textre is re7ired. Excessive tro6e"in+ or over 6orkin+ thef"oat sha"" e avoided.

(.1.!.3 A"" corners arises an+"es and nctions sha"" e tr"& vertica" or hori;onta"as the case ma& e and sha"" e caref""& finished. Rondin+ orchamferin+ corners arises provision of +rooves at nctions etc. 6herere7ired sha"" e done 6ithot an& extra pa&ment. Sch rondin+chamferin+ or +roovin+ sha"" e carried ot 6ith proper temp"ates orattens to the si;es re7ired.

(.1.!.! When sspendin+ 6ork at the end of the da& the p"aster sha"" e "eft ctc"ean to "ine oth hori;onta""& and vertica""&. When recommencin+ the

p"asterin+ the ed+e of the o"d 6ork sha"" e scrapped c"eaned and 6etted6ith cement s"rr& efore p"aster is app"ied to the adacent areas to ena"ethe t6o to proper"& oin to+ether. )"asterin+ 6ork sha"" e c"osed at the end ofthe da& on the od& of 6a"" and not nearer than 15 cm to an& corners orarrises. 4t sha"" not e c"osed on the od& of the featres sch as p"astersands and cornices nor at the corners of arrises. ?ori;onta" oints in p"aster6ork sha"" not a"so occr on parapet tops and copin+s as these invaria"& "eadto "eaka+es. ,he p"asterin+ and finishin+ sha"" e comp"eted 6ithin ha"f anhor of addin+ 6ater to the dr& mortar.

o portion of the srface sha"" e "eft ot initia""& to e patched p "ater on.,he p"asterin+ and finishin+ sha"" e comp"eted 6ithin ha"f an hor of

addin+ 6ater to the dr& mortar.

(.1.5 Th!c6e((

Where the thickness re7ired as per description of the item is 20 mm theavera+e thickness of the p"aster sha"" not e "ess than 20 mm 6hether the6a"" treated is of rick or stone. 4n the case of rick 6ork the minimmthickness over an& portion of the srface sha"" e not "ess than 15 mm 6hi"ein case of stone 6ork the minimm thickness over the shin+s sha"" e not"ess than 12 mm.

(.1.# C)*!+

Crin+ sha"" e started as soon as the p"aster has hardened sicient"&not to e dama+ed 6hen 6atered.

,he p"aster sha"" e kept 6et for a period of at "east da&s. 8rin+ this periodit sha"" e sita"& protected from a"" dama+es at the contractors expense &sch means as the En+ineer


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(.1. F!!(h

,he p"aster sha"" e finished to a tre and p"m srface and to the properde+ree of smoothness as re7ired. ,he 6ork sha"" e tested fre7ent"& as the6ork proceeds 6ith a tre strai+ht ed+e not "ess than 2.5 m "on+ and 6ith

p"m os. A"" hori;onta" "ines and srfaces sha"" e tested 6ith a "eve" anda"" ams and corners 6ith a p"m o as the 6ork proceeds.

(.1.( P*ec")&!'

An& cracks 6hich appear in the srface and a"" portions 6hich sondho""o6 6hen tapped or are fond to e soft or other6ise defective sha"" ect ot in rectan+"ar shape and redone as directed & the En+ineer


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(.1.*.# A coefficient of 1.#3 sha"" e adopted for the measrement of one sidep"asterin+ on hone& com 6ork havin+ # x 10 cm. openin+.

(.1.*. %o"ded cornices and coves.

Len+th sha"" e measred at the centre of the+irth.

%o"ded cornices and coves sha"" e +iven in s7are metres the area ein+arrived at & m"tip"&in+ "en+th & the +irth. F"at or 6eathered top to cornices6hen exceedin+ 15 cm in 6idth sha"" not e inc"ded in the +irth tmeasred 6ith the +enera" p"aster 6ork. Cornices 6hich are crved in their"en+th sha"" e measred separate"&.

(.1.*.( Exterior p"asterin+ at a hei+ht +reater than 10 m from avera+e +rond"eve" sha"" e measred separate"& in each store& hei+ht. )atchp"asterin+ -in repairs/ sha"" e measred as p"asterin+ ne6 6ork 6here

the patch exceed 2.5 s7m. extra pa&ment ein+ made for preparin+ o"d6a"" sch as dismant"in+ o"d p"aster rakin+ ot the oints and c"eanin+ thesrface. Where the patch does not exceed 2.5 s7m in area it sha"" emeasred nder the appropriate item nder s head Repairs to $i"din+s.

(.1.*.* 8edctions in measrements for openin+ etc. 6i"" e re+"ated as fo""o6s:

o dedction 6i"" e made for openin+s or ends of oists eams posts+irders steps etc. pto 0.5 s7m in area and no additions sha"" e madeeither for the ams soits and si""s of sch openin+s. ,he aove procedre6i"" app"& to oth faces of 6a"".

8edction for openin+ exceedin+ 0.5 s7m t not exceedin+ 3 s7m eachsha"" e made for revea"s ams soits si""s si""s etc. of these openin+s.

When oth faces of 6a""s are p"astered 6ith same p"aster dedctions sha"" emade for one face on"&.

When t6o faces of 6a""s are p"astered 6ith dierent t&pes of p"aster or if oneface is p"astered and other is pointed or one face is p"astered and otheris np"astered dedction sha"" e made from the p"aster or pointin+ on theside of the frame for the doors 6indo6s etc. on 6hich 6idth of revea"s is "essthan that on the other side t no dedction sha"" e made on the other side.

Where 6idth of revea"s on oth faces of 6a"" are e7a" dedction of 50D ofarea of openin+ on each face sha"" e made from area of p"aster and>orpointin+ as the case ma& e.

For openin+ havin+ door frame e7a" to or proectin+ e&ond thickness of 6a""f"" dedction for openin+ sha"" e made from each p"astered face of 6a"".

For openin+ exceedin+ 3 s7m in area dedction 6i"" e made in themeasrements for the f"" openin+ of the 6a"" treatment on oth faces 6hi"eat the same time ams si""s and soits 6i"" e measred for pa&ment.

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4n measrin+ ams si""s and soits dedction sha"" not e made for the areain contact 6ith the frame of doors 6indo6s etc.

(.1.*.10 R"&e

,he rate sha"" inc"de the cost of a"" "aor and materia"s invo"ved in a"" theoperations descried aove.

(.2 CEMENT PLASTER WITH A FLOATING COAT OF NEAT CEMENT

(.2.1 ,he cement p"aster sha"" e 12 15 or 20 mm thick finished 6ith a f"oatin+coat of neat cement as descried in the item.

(.2.2 Specifications for this item of 6ork sha"" e same as descried in 10.1except for the additiona" f"oatin+ coat 6hich sha"" e carried ot as e"o6.

(.2.3 When the p"aster has een ro+ht to a tre srface 6ith the 6oodenstrai+ht ed+e it sha"" e niform"& treated over its entire area 6ith a paste ofneat cement and red smooth so that the 6ho"e srface is covered 6ithneat cement coatin+. ,he 7antit& of cement app"ied for f"oatin+ coat sha"" e1 k+ per s7m. Smooth finishin+ sha"" e comp"eted 6ith tro6e" immediate"&and in no case "ater than ha"f an hor of addin+ 6ater to the p"aster mix.

,he rest of the specifications descried in 10.1.! sha"" app"&.

(.3 6 MM CEMENT PLASTER ON CEMENT CONCRETE ANDREINFORCED CEMENT CONCRETE WORK

(.3.1 Sc"1'#.!+

Sta+e scao"din+ sha"" e provided for the 6ork. ,his sha"" e independent ofthe 6a""s.

(.3.2 P*e$"*"&!' '% S)*%"ce

)roectin+ rrs of mortar formed de to the +aps at oints in shtterin+sha"" e removed. ,he srface sha"" e scred c"ean 6ith 6ire rshes. 4naddition concrete srfaces to e p"astered sha"" e pock marked 6ith apointed too" at spacin+ of not more than 5 cm. Centers the pock ein+ made

not "ess than 3 mm deep. ,his is to ensre a proper ke& for the p"aster. ,hemortar sha"" e 6ashed off and srface c"eaned off a"" oi" +rease etc. and 6e""6etted efore the p"aster is app"ied.

(.3.3 M'*&"*(

%ortar of the specified mix sin+ the t&pes of sand descried in the itemsha"" e sed.

(.3.! A$$#!c"&!'


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,o ensre even thickness and a tre srface +a+es of p"aster 15 x 15 cm.sha"" e first app"ied at not more than 1.5 m interva"s in oth directions toserve as +ides for the p"asterin+. Srface of these +a+ed areas sha"" etr"& in the p"ane of the finished p"aster srface. ,he p"aster sha"" e thenapp"ied in a niform srface to a thickness s"i+ht"& more than the specified

thickness and sha"" then e ro+ht to tre and even srface & 6orkin+ a6ooden strai+ht ed+e reachin+ across the +a+es. Fina""& the srface sha""e finished tre 6ith a tro6e" or 6ith 6ooden f"oat to +ive a smooth orsand& +ran"ar textre as re7ired. Excess tro6e"in+ or over 6orkin+ of thef"oats sha"" e avoided. ,he p"asterin+ and finishin+ sha"" e comp"eted 6ithinha"f an hor of addin+ 6ater to the dr& mortar.

)"asterin+ of cei"in+ sha"" not e commenced nti" the s"a aove has eenfinished and centerin+ has een removed. 4n the case of cei"in+ of roof s"asp"aster sha"" not e commenced nti" the terrace 6ork has een comp"eted.

,hese precations are necessar& in order that the cei"in+ p"aster is notdistred & the virations set p in the aove operations.

(.3.5 F!!(h

,he p"aster sha"" e finished to a tre and p"m srface and to the properde+ree of smoothness as re7ired. ,he 6ork sha"" e tested fre7ent"& as the6ork proceeds 6ith a tre strai+ht ed+e not "ess than 2.5 m "on+ and 6ithp"m os. A"" hori;onta" "ines and srfaces sha"" e tested 6ith a "eve" anda"" ams and corners 6ith a p"m o as the 6ork proceeds.

(.3.# Th!c6e((

,he avera+e thickness of p"aster sha"" not e "ess than # mm. ,he minimmthickness over an& portion of the srface sha"" not e "ess than 5 mm.

(.3. Me"()*e/e&(

(.3..1 Len+th and readth sha"" e measred correct a cm. and its area sha"" eca"c"ated in s7m. correct to t6o p"aces of decima". 8imensions eforep"asterin+ sha"" e taken.

(.3..2 ,hickness of p"aster sha"" e exc"sive of the thickness of the ke& i.e.depth or rock marks and hackin+.

(.3..3 )"asterin+ on cei"in+ at hei+ht +reater than 5 m aove the correspondin+ f"oor"eve" sha"" e so descried and sha"" e measred separate"& statin+ thehei+ht in sta+es of 1 m or part thereof.



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(.3..! )"asterin+ on the sides and soits of the proected eams of cei"in+ at ahei+ht +reater than 5 m aove the correspondin+ f"oor "eve" sha"" emeasred and added to the 7antit& measred nder 10.!.*.3.

(.3..5 )"asterin+ on spherica" and +roined cei"in+ and circ"ar 6ork not exceedin+ #

m in radis sha"" e measred and paid for separate"&.

(.3..# F"o6in+ soits -vi;. portion nder spira" stair case etc./ sha"" e measredand paid for separate"&.

(.3.. Ris and mo"din+s on cei"in+ sha"" e measred as for cornices dedctionsein+ made from the p"asterin+ on cei"in+ in case the 6idth of the mo"din+exceed 15 cm.

(.3..( ,he mode of measrement of exterior p"asterin+ and patch p"asterin+ -inrepairs/ sha"" e as "aid do6n in 10.1.*.(

(.3..* 8edction sha"" not e made for openin+s or for ends of co"mns or co"mnscaps of 0.5 s7m each in area and nder. o additions 6i"" e made either forthe p"asterin+ of the sides of sch openin+s. For openin+s etc. of areasexceedin+ 0.5 s7m dedction 6i"" e made for the f"" openin+ t the sides ofsch openin+s sha"" e measred for pa&ment.

(.3.( R"&e

,he rate sha"" inc"de the cost of a"" "aor and materia"s invo"ved in a"" theoperations descried aove.

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*.0 P"!&!+ W'*

*.1 Wh!&e"(h!+

*.1.1 Scao"din+

Wherever scao"din+ is necessar& it sha"" e erected on do"e spports tiesto+ether & hori;onta" pieces over 6hich scao"din+ p"anks 6i"" e fixedo a""ies amoos or p"anks sha"" rest on or toch the srface 6hich isein+ 6hite 6ashed.

Where "adders are sed pieces of o"d +nn& a+s sha"" e tied on their tops toavoid dama+e or scratches to 6a""s.

*.1.2 )reparation =f Srface

$efore ne6 6ork is 6hite 6ashed the srface sha"" e thoro+h"& rshedfree from mortar droppin+ and forei+n matter.

*.1.3 )reparation =f Lime Wash

,he 6ash sha"" e prepared from stone 6hite "ime. ,he "ime sha"" ethoro+h"& s"acked on the spot mixed and stirred 6ith sicient 6ater-approx. 5 k+ of 6ater to one k+ of "ime/ to make a thin cream. ,his sha"" ea""o6ed to stand for a period of 2! hors and then sha"" e screened thro+h ac"ean coarse c"oth. ! k+ of +m disso"ved in hot 6ater sha"" e added to eachcm of the cream. 4ndi+o -ee"/ p to 3 +m per k+ of "ime disso"ved in 6atersha"" then e added and 6ashed stirred 6e"". Water sha"" then e added at therate of aot 5 "iters per k+ of "ime to prodce a mi"k& so"tion.

*.1.! App"ication

,he 6ashin+ on cei"in+ sho"d e done prior to that of 6a""s. ,he 6hite 6ashsha"" e app"ied 6ith moon rshes to the specified nmer of coats. ,heoperation for each coat sha"" consist of a stroke of the rsh +iven from thetop do6n6ards another from the ottom p6ards over the first stroke andsimi"ar"& one stroke hori;onta""& from the ri+ht and another from the "eftefore it dries.

Each coat sha"" e a""o6ed to dr& efore the next one is app"ied. Frther eachcoat sha"" e inspected and approved & the Cons"tant>En+ineer


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*.1.5 )rotective %easres

8oors 6indo6s f"oors artic"es of frnitre etc and sch other parts of thei"din+ not to e 6hite 6ashed sha"" e protected for ein+ sp"ashed pon

Sp"ashin+ and droppin+s if an& sha"" e removed & the contractor at his o6ncost and the srfaces c"eaned 8ama+es if an& to frnitre or fittin+s andfixtres sha"" e recovera"e from the contractor.

*.2 O!# B') D!(&e/$e*

*.2.1 M"&e*!"#(

=i" em"sion -=i" $ond/ 6asha"e distemper -4S : !2(/ of approved rand andmanfactre sha"" e sed. ,he primer sha"" e of the same manfactre asdistemper sha"" e di"ted 6ith 6ater of an& other prescried thinner in amanner recommended & the manfactrer. =n"& sicient 7antit& of

distemper re7ired for da&s 6ork sha"" e prepared.

,he distemper and primer sha"" e ro+ht & the contractor in sea"ed tins insicient 7antities at a time to sice for a fortni+hts 6ork and the samesha"" e kept in the oint cstod& of the contractor and the En+ineer En+ineer


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,he specifications in respect of scao"din+ protective measres sha"" e asdescried nder 6hite 6ashin+.

*.3 Ac*=#!c E/)#(!' P"!&!+7

*.3.1 Workmanship:

*.3.1.1 Scao"din+:

Wherever scao"din+ is necessar& it sha"" e erected on do"e spports tiesto+ether & hori;onta" pieces over 6hich scao"din+ p"anks 6i"" e fixedo a""ies amoos or p"anks sha"" rest on or toch the srface 6hich isein+ 6hite 6ashed

Where "adders are sed pieces of o"d +nn& a+s sha"" e tied on their tops toavoid dama+e or scratches to 6a""s.

*.3.1.2 )reparation of srface7

)reparation of srface sha"" in +enera" e in accordance 6ith exceptthat an& nevenness sha"" e made +ood & app"&in+ ptt& -6hite cementased/ mixed 6ith 6ater inc"din+ p the nd"ation and then sand paperin+the same after it is dr&.

*.3.1.3 )reparation of paint

,he paint mix sha"" e continos"& stirred 6hi"e app"&in+ for maintainin+niform consistenc&. mer of coats sha"" e as per item description. ,hepaintin+ sha"" e "aid even"& and smooth"& & means of crossin+ and "a&in+ o.

,he crossin+ and "a&in+ o consists of coverin+ the area 6ith paint rshin+the srface hard at first then rshin+ a"ternative"& in opposite direction 2>3times and then fina""& rshin+ "i+ht"& in a direction at ri+ht an+"es to thesame. 4n this process no rsh marks no hair marks no c"o++in+ of paintpdd"es sha"" e permitted. ,he f"" process of crossin+ and "a&in+ off 6ithconstitte one coat.

,he paint sha"" e app"ied & means of rsh orro""er.

$efore startin+ paintin+ 6ith p"astic em"sion paint the prepared srface sha""e reacted 6ith t6o coats of primer consistin+ of cement primer 6hitin+ andp"astic em"sion paint sha"" start on"& after the precedin+ coat has ecomesicient"& hard to resist rsh markin+. Sse7ent coats of p"astic em"sionpaint sha"" a"so e started after the precedin+ coat is dried & evaporation of6ater content.

,he srface of finishin+ sha"" present a f"at ve"vets smooth finish evenand niform shade 6ithot patches marks paint drops etc.

*.3.1.! )recations:


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i. $rshes sha"" e 7ick"& 6ashed in 6ater immediate"& after seand kept immersed in 6ater drin+ reak periods to prevent the paintfrom hardenin+ on the rsh. ="d rshes if sed sha"" e comp"ete"& driedof trpentine > oi" paints & 6ashin+ in 6arm soap 6ater.

ii. o oi" ase pttied sha"" e sed in fi""in+ cracks >ho"es.

iii. Washin+ of painted srface sha"" not e done 6ithin 3

A"" nai"s sha"" e removed. )ittin+ in p"aster sha"" e made +ood 6ith

p"aster of paris mixed 6ith dr& distemper of co"or to e sed. ,he srfacethen sha"" e red do6n a+ain 6ith a fine +rade sand paper and madesmooth. A coat of distemper sha"" e app"ied over the patches. ,he srfacesha"" e a""o6ed to dr& thoro+h"& efore the re+"ar coat of distemper isa""o6ed.

,he srface affected & moss fn+s a"+ae e"orescence sha"" e treated inaccordance 6ith 4S 23*5.

*.! P"!&!+ O% S&ee# A O&he* Me&"# S)*%"ce(

*.!.1 Gee*"#

Reference sha"" e made to the fo""o6in+ 4ndian Standards: 4S 252!4S 1!!.

*.!.2 P*e$"*"&!' '% ()*%"ce

,he srface efore paintin+ sha"" e c"eaned of a"" rst sca"e dirt and otherforei+n matter 6ith 6ire rshes stee" 6oo" scrappers sand paper etc. ,hesrface sha"" then e 6iped fina""& 6ith minera" trpentine 6hich sha"" then eremoved of +rease etc. ,he srface then sha"" e a""o6ed to dr&.

4n case of '4 srface so prepared sha"" e treated 6ith %ordant so"tion -5"iters for aot 100 s7.m/ & rin+ the so"tion +eneros"& 6ith rsh. Afteraot ha"f an hor the srface if re7ired sha"" e retoched and 6asheddo6n thoro+h"& 6ith c"ean co"d 6ater a""o6ed to dr&.

*.!.3 A$$#!c"&!' '% $*!/!+ " $"!&(

Approved 7a"it& primer and paint in specified no. of coats sha"" e app"ied asper manfactrers recommendations either & rshin+ or spra&in+. Eachsse7ent coat sha"" e app"ied on"& after the precedin+ coat is dried.

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*.5 S=&he&!c E"/e# P"!& T' W'' W'*

*.5.1 S&nthetic ename" paint of approved rand and manfactre and of there7ired co"or sha"" e sed for the top coat and an nder coat of shade to

match the top coat as recommended & the manfactre sha"" e sed.

*.5.2 =ne coat of specified paint of shade sited to the shade of the top coat sha""e app"ied after rin+ 6ith the finest +rade of 6et arasive paper to ensrea smooth and even srface free from rsh marks and a"" "oose partic"es dsto.

*.5.3 ,op coats of specified paint of re7ired shade sha"" e app"ied after thefirst coat is thoro+h"& dr&. Additiona" finishin+ coats sha"" e app"ied if fondnecessar& to ensre proper"& niform +"oss& srface.



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10.0 P!#e W'*

10.1 B'*e C"(&0I0S!&) Re!%'*ce C'c*e&e P!#e(

10.2 Gee*"#

,he pi"es are formed 6ithin the +rond & excavatin+ or orin+ a pi"e 6ithin it6ith or 6ithot the se of temporar& casin+ and sse7ent"& fi""in+ it 6ithp"ain or reinforced concrete. When the casin+ is "eft permanent"& it is termedas cased pi"e and 6hen the casin+ is taken ot it is termed as ncased pi"e.

10.2.1 E7ipment

,he e7ipment and accessories sed for ored castto"erance sho"d e as per 4S 2*11 -)art 1>Sec.1/. ,he pi"essho"d not deviate more than 5 mm or 8>! 6hichever is "ess -5 mm or 8>106hichever is more in case of pi"es havin+ diameter more than #00 mm/ fromtheir desi+ned position at the 6orkin+ "eve".



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-ii/ 4n case of a sin+"e pi"e nder a co"mn the positiona" deviation sho"d note more than 50 mm or 8>! 6hichever is "ess -100 mm in case of pi"eshavin+ diameter more than #00 mm. 'reater to"erance ma& e prescried forpi"es driven over 6ater and for rakin+ pi"es.

10.2.2.3 )rocedre of 8rivin+ )i"e $ore

-i/ $ored cast


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-vii/ Where ored cast


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cases the ca+e ma& "ift at ottom or at the "aps drin+ 6ithdra6a" of casin+.,his can e minimi;ed & makin+ the reinforcement X9Y shaped at the ottomand p to 6e"" secred oints. A"so the "iftin+ 5 percent of the "en+th sho"de considered not to aect the 7a"it& of pi"e.

-iv/ C"ear cover to a"" main reinforcement in pi"e shaft sha"" e not "ess than50 mm and sha"" e maintained & sita"e spacers. ,he "atera"s of reinforcin+ca+e ma& e in the form of "inks or spira"s. ,he diameter and spacin+ of thesame is chosen to impart ade7ate ri+idit& of the reinforcin+ ca+e drin+the handin+ and insta""ation. ,he minimm diameter of "inks or spira"s sha""e # mm and the spacin+ of the "inks or spira"s sha"" e not "ess than 150 mm.

,he minimm c"ear distance et6een t6o adacent main reinforcement sho"dnorma""& e 100 mm for f"" depth of the ca+e.

-v/ ,he reinforcin+ ca+e sho"d e "eft 6ith ade7ate protrdin+ "en+thaove the ct off "eve" for proper emedment in the pi"e cap. )rior to the"o6erin+ of reinforcement ca+e into the pi"e shaft the shaft sha"" e c"eaned

of a"" "oose materia"s.

-vi/ Reinforcement in the form of ca+e sha"" e assem"ed 6ith additiona"spport sch as spreader forks and "acin+sQ necessar& to form a ri+id ca+ehoops "inks or he"ica" reinforcement has to fit c"ose"& arond the main"on+itdina" ars and sha"" e tied & indin+ 6ire of approved 7a"it&. ,heends of the indin+ 6ire sha"" e trned into the interior of the pi"e.Reinforcement sha"" e p"aced and maintained in correct position. ,hereinforcements sha"" e oined 6herever necessar& & 6e"din+ and theprocedre of 6e"din+ e fo""o6ed as descried in 4S 251.

10.2.! C'c*e&e

10.2.!.1 Ce/e& :

Cement sha"" e as specified in a+reement item. ?o6ever hi+h a"minacement sha"" not e sed.

10.2.5 Re"= M! C'c*e&e

A"ternative"& the contractor can e a""o6ed to se Read& %ix Concrete -R%C/6ith the permission of En+ineer


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NON TSRITEMS

11.0 GLASS MOSAIC TILES

)rovidin+ fixin+ 4st 7a"it& +"ass mosaic ti"es of minimmthickness 3.( mm of approved make of approved make in a"" co"ors of+rop 8 shades of an& si;e as approved & En+ineer


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o.

POINTING ANDFINISHING



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,he oints sha"" e c"eaned off the +re& cement +rot 6ith 6ire rsh ortro6a" to a depth of 5 mm and a"" dst and "oose mortar removed. Kointssha"" e kept 6et for da&s. After crin+ the srface sha"" e 6ashed andfinished c"ean. ,he finished f"oor sha"" not sond ho""o6 6hen tapped 6ith a6ooden ma""et.

,he rate for ti"in+ sha"" inc"de the cost of a"" materia"s and "aor invo"ved ina"" the operations descried aove.

12.0 C'ce*&!" C'!# Fec!+

12.1 M"&e*!"#7

An+"e iron post strt sha"" e sed. Concertina coi" fencin+ sha"" e dia #10mm -havin+15 nos rond per # mtre. "en+th/ sprin+ core -2.5 mm thick/ 6ire ofhi+h tensi"e stren+th of 1#5 k+.>s7.mm 6ith tape -0.52 mm thick/ and 6ei+ht

!3.!( +m>metre.

12.2 S$"c!+ '% P'(&( S&*)&(7

,he spacin+ of posts sha"" e 2.! m or 3.00 m apart centre to centre n"essother6ise specified or as per En+ineer


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,he "en+th of fencin+ sha"" e measred correct to a cm. forfinished 6ork.

12.5 R"&e

,he rate sha"" inc"de the cost of "aor and materia"s invo"ved in a"" theoperation descried aove t exc"din+ the cost of %.S. an+"e andexcavation and concrete in fondation for 6hich separate pa&ment sha"" emade nder respective items.



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construction of boundary wall specifications

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