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14110GENERALSPECIFICATION,CONSTRUCTIONANDWORKMANSHIP10.1OBJECTIVESThissectionspecifiestheminimumrequiredstandardsformaterialsandworkmanshiptocomplywiththedesignassumptionsofthiscodeofpractice.10.2CONSTRUCTIONTOLERANCESPermissibledeviationsshouldbespecifiedonlyforthosedimensionsthatareimportanttotheconstruction,performanceorappearanceofthestructure.Guidancefordesignersontheaccuracythatcanbeachievedisprovidedbelow.Morestringenttolerancesmaybenecessaryforcertainapplicationsandtheseshouldbenotedinthedesignandincludedinthespecifications.Spacebetweenelements;•wallsupto7mapart-atfloor±24mm-atsoffit±24mm•columnsupto7mapart-atfloor±17mm-atsoffit±18mm•beamsandfloorslabs-floortosoffitheight±23mmOpenings;•windowordoor-widthupto3m±14mm-heightupto3m±20mmSizeandshapeofelementsandcomponents;•walls-thickness±8mm-straightnessin5m±9mm-abruptchangesinacontinuoussurface±4mmverticality:-upto2m11mm-upto3m17mm-upto7m16mm•columns-sizeonplanupto1m±8mm-verticalityupto3m12mm-verticalityupto7m16mm-squareness9mm•beams-depth:-perimeterbeamsupto600mm±13mm-perimeterbeamsover600mm±20mm-internalbeamsupto600mm±12mm-internalbeamsover600mm±16mm-level:-variationfromtargetplane±22mm-straightnessin6m10mm•suspendedstructuralfloor-levelvariationfromtargetplane±25mmbeforelayingofscreed-structuralsoffit±19mm•non-suspendedstructural-thickness±10mmfloorbeforelayingofscreed-levelvariationfromtargetplane±25mm142•insituflooringswithoutscreed-levelvariationfromtargetplane±15mm-flatness5mm-abruptchangesacrossjoints2mmOverallsizeonplan;•building-lengthorwidthupto40m±26mm•groundfloorslab-lengthorwidth±28mmPositiononplaninrelationtothenearestreferencelineatthesamelevel;•foundations-massconcretewithminimumformwork±50mm-reinforcedconcrete–rafts,groundbeams,pilecapsandfootings±50mm•walls±16mm•structuralframe-columns±12mm•liftwalls±12mm•stairwells±12mm•finishedstairs(flightfromlandingtolanding)±12mm•doors,windowsandotheropenings±12mm•formersforitemstobecastin±6mm•allotherelementsabovefoundations±12mmDimensionsonplaninrelationtotargetsizes;•foundations-massconcretewithminimumformwork±50mm-reinforcedconcrete–rafts,groundbeams,pilecapsandfootings±50mm•structuralframelength&width-upto8m±16mm-over8mandupto15m±18mm-over15mandupto25m±20mm•stairs-structural-lengthofclearspan±14mm-widthofflight±8mm-differenceinwidthoftreadorgoingoverconsecutivesteps±10mm-waistthicknessmeasuredsquaretoslopeofflight±8mm•stairs-finished-lengthofclearspan±12mm-widthofflight±10mmPositioninelevationinrelationtothenearestreferenceline;•doors,windowsandotheropenings±15mm•formersforitemstobecastin±10mmRangeindeviationsinlevelwithreferencetonearestdatum;•foundations-massconcrete:-formationsurfaceofexcavationorblindingsurface±34mm-uppersurface±20mm-reinforcedconcrete:143-formationsurfaceofexcavationorblindingsurface±30mm-uppersurface±16mm•concreteframe-structuralroof:-uppersurfaceheightupto30m±16mm-foreachsubsequent30m±8mm•stairs-verticalheightofanyflight±15mmbetweenlandings-differenceinriseofany±6mmconsecutivesteps-differenceinleveloftreadwith±4mmthegoing-permetrewidthofstair±5mm-stairsfinishedverticalheightofanyflightbetweenlandings±10mm•doorswindowsand-sillandsoffit,foreach1mofwidth±6mmotheropenings(maximum15mm)Verticalityatanypoint;•liftwells-eachwall-forthefirst30mofheight±25mm-foreachadditional12mofheightwithamaximumof±25mm±6mm•doorjambs-plumbness,foreach1mofheightwithamaximumof±15mm±4mm10.3CONCRETE10.3.1ConstituentsSpecificationsforselectionoftheconstituentmaterialsofconcretearegivenintheacceptablestandards.10.3.2MixspecificationRecommendedmethodsforspecifyingconcretearegivenintheacceptablestandards.10.3.3Methodsofspecification,productioncontrolandtransportMethodsofspecificationfortheproductionandtransportofconcretearegivenintheacceptablestandards.10.3.4Sampling,testingandassessingconformity10.3.4.1GeneralSpecificationsforsampling,testingandassessingconformityaregiveninCS1:1990andtheacceptablestandards.Forspecialpurposesadditionalcubesmayberequired.ThesecubesshouldbemadeandtestedinaccordancewithCS1:1990butthemethodsofsamplingandtheconditionsofstorageshouldbespecifiedtomeettherequiredpurpose.Thesespecialpurposesinclude:•thestrengthofconcreteinprestressedconcreteattransfer(seeclause13.1.8.1);•thetimeatwhichtostrikeformwork(seeclause10.3.8.2);Preferablysamplingshouldbeatthepointofplacingandtheadditionalcubesstoredunderthesameconditionsastheconcreteinthemembers.Theadditionalcubesshouldbeidentifiedatthetimeofmanufactureandshouldnotbeusedfortheconformityprocedures.14410.3.4.2ConcreteCubeTestsDuringConstruction(a)ConcreteCubesThecompressivestrengthofconcreteshallbedeterminedbytesting100mmor150mmcubes28daysaftermixing.Arepresentativesampleshallbetakenfromfreshconcretetomaketestcubesandeachsampleshallbetakenfromasinglebatch.Therateofsamplingshallbeatleastthatspecifiedintable10.1andatleastonesampleshallbetakenfromeachgradeofconcreteproducedonanyoneday.Typeorpartofbuilding,buildingworksorstreetworksQuantityofconcretetoberepresentedbyeachsampleMasts,cantileversmorethan3minlength,columns,shearwall,prestress