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1、ACI302.1R-96GuideforConcreteFloorandSlabConstructionReportedbyACICommittee302CarlBimelEldonTippingChairmanSecretaryRobertB.AndersonEdwardB.FinkelWilliamS.PhelanCharlesM.AultBarryE.ForemanDennisW.PhillipsCharlesM.AyersTerryJ.FricksJohnW.RohrerKennethL.BeaudoinEugeneD.Hill,Jr.MoormanL
2、.ScottMichaelG.CallasJerryA.HollandNanduK.ShahAngeloE.ColasantiArthurW.McKinneyPeterC.TatnallGregoryDobsonJohnP.MundayR.GregoryTaylorRobertA.EpifanoScottNiemitaloMiroslavF.VejvodaSamuelA.Face,IIIRobertW.NussmeierSamJ.VitaleWilliamC.PanareseFOREWORDofitsconstruction.1,2Refertothelate
3、steditionofACI360foradetailedThequalityofaconcretefloororslabishighlydependentonachievingadiscussionofshrinkageandcurlinginslabsonground.Refertothelatesthardanddurablesurfacethatisflat,relativelyfreeofcracks,andattheeditionofACI224foradetaileddiscussionofcrackinginreinforcedandprope
4、rgradeandelevation.Propertiesofthesurfacearedeterminedbythenonreinforcedconcreteslabs.mixtureproportionsandthequalityoftheconcretingandjointingopera-tions.Thetimingofconcretingoperations—especiallyfinishingandjoint-Thisguidedescribeshowtoproducehighqualityconcreteslabsongrounding—is
5、critical.Failuretoaddressthisissuecancontributetoundesirableandsuspendedfloorsforvariousclassesofservice.Itemphasizessuchcharacteristicsinthewearingsurfacesuchascracking,lowresistancetoaspectsofconstructionassitepreparation,concretingmaterials,concretewear,dusting,scaling,highorlows
6、pots,andpoordrainage,aswellasmixtureproportions,concretingworkmanship,jointconstruction,loadincreasingthepotentialforcurling.transferacrossjoints,formstrippingprocedures,andcuring.Finishingmethods,flatness/levelnessrequirements,andmeasurementsareoutlined.Concretefloorslabsemployingp
7、ortlandcement,regardlessofslump,willAthoroughpreconstructionmeetingiscriticaltofacilitatecommunicationstarttoexperienceareductioninvolumeassoonastheyareplaced.Thisamongkeyparticipantsandtoclearlyestablishexpectationsandproce-phenomenonwillcontinueaslongasanywaterorheat,orboth,isbein
8、gduresthatwillbeemp
