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1、ACI304.1R-92(Reapproved1997)GuidefortheUseofPreplacedAggregateConcreteforStructuralandMassConcreteApplicationsReportedbyACICommittee304PaulR.Stodola*ChairmanDavidJ.AkersDonaldE.GrahamGaryR.MassJamesE.Bennett,Jr.DanielJ.GreenRichardW.NarvaArthurC.CheffNei
2、lR.Guptill*DipakT.ParekhThomasR.ClappTerenceC.Holland*JamesS.PierceJamesL.CopeJamesHubbardKennethL.SaucierHenriJeandeCarbonelThomasAJohnsonDonaldL.SchlegelRobertM.EshbachRobertA.KelseyWilliamX.SypherJamesR.FloreyJohnC.King*RobertE.TobinCliffordGordonWill
3、iamC.Krell*MembersoftheSubcommitteewhoprepareddthisguide.SubcommitteeChairman.Committee304expressesitsappreciationtoJohnC.KingforhisworkasthePrincipalAuthorofthisdocument.Beginningin1947heevalu-ateddata,preparedspecifications,andguidedtheconversionofrepa
4、irproceduresintothosemoresuitablefornewconstructionwithpreplaced-aggregateconcrete.Thepreplaced-aggregate(PA)methodforconcreteconstructionis2.2-Fineaggregateexplained,specialpropertiesdescribed,andmaterialsrequirements2.3-Cementaregivenwheretheydifferfro
5、mthoseusedinnormalconcrete.A2.4-Pozzolanbriefhistoryofthedevelopmentoftheprocedureiscovered.Short2.5-Admixturesdescriptionsofseveraltypicalapplicationsareincluded.2.6-Prepackagedgroutproducts2.7-ResinousgroutKeywords:fluidizing;grout;heavyweightconcretes
6、;inserts;preplaced-aggre-2.8-Groutmixtureproportioninggateconcrete:underwaterconstruction.CONTENTSChapter3-Equipment3.1-AggregatehandlingChapter1-Introduction3.2-Groutmixersandpumps1.l-History3.3-Groutingsystems1.2-Generalconsiderations1.3-Specialpropert
7、ies1.4-StrengthChapter4-Constructionprocedure1.5-Bond4.1-Generalconsiderations1.6-Durability4.2-Preparationofconcretesurfaces1.7-Heatofhydrationcontrol4.3-Groutinserts,soundingwells,andventpipes1.8-Closelyspacedreinforcement4.4-Forms1.9-Heavyweight(high-
8、density)concrete4.5-Coarseaggregateplacement1.10-Monolithicplacements4.6-Contamination1.11-Exposedaggregatesurfaces4.7-Groutinjection4.8-JointconstructionChapter2-Materialsandproportioning4.9-Finishing2.1-Coarseaggregate4.
