ACI 224.1R-93 Causes, Evaluation and Repair of Cracks in Concrete Structures

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1、ACI224.1R-93Reapproved1998Causes,EvaluationandRepairofCracksinConcreteStructuresReportedbyACICommittee224GrantT.H&orsen*tRandallW.PostonChairmanSecretaryPeterBarlowtDavidW.FowlergKeithA.PashinaFlorianBarthtPeterGergely*AndrewScanlon$AlfredG.Bishara*WiiHansenErnestK.Sch

2、raderHowardLBoggsM.NadimHassounWimalSuarisMerleE.BrandeeTonyC.Iiu$LewisH.TuthillDavidDarwin*EdwardG.NawyZenonA.ZielinskiFouadH.FouadHarryM.Palmbaum*ContributingAuthortMemberofTaskGroupwhichpreparedtheserevisions$PrincipalAuthor0ChairmanofTaskGroupwhichpreparedtheserevi

3、sionsNote:AssociatemembersMasayatsuOhtsu,RobertL.Yuan,andConsultingMemberLeRoyLutzcontributetotherevisionofthisdocument.ThecausesofcracksinconcretestructuresaresummarizedTheproce-Chapter2-Evaluationofcracking,pg.224.1R-9duresusedtoevaluatecrackinginconcreteandtheprinci

4、paltechniquesfor2.1-IntroductiontherepairofcracksarepresentedThekeymethodsofcrackrepairare2.2-DeterminationoflocationandextentofconcretediscussedandguidanceisprovidedfortheirproperapplicationcrackingKeywords:autogenoushealing;beams(supports);cement-aggregatereactions;2

5、.3-Selectionofrepairproceduresconcreteconstruction;concretepavements;concreteslabs;concretes;consol-idation;corrosion;cracking(fracturing);drilling;dryingshrinkage;epoxyresins;Chapter3-Methodsofcrackrepair,pg.224.1R-13evaluation;failure;grouting,heatofhydration;masscon

6、crete;methacrylates;mixproportioning;plastics,polymersandresins;precastconcrete;prestressed3.1-Introductionconcrete;reinforcedconcrete;repairs;resurfacing;sealingsettlement(structural);3.2-Epoxyinjectionshrinkage;specifications;structuraldesign;tension;thermalexpansion

7、;volume3.3-Routingandsealingchange.3.4-StitchingCONTENTS3.5-Additionalreinforcement3.6-DrillingandpluggingPreface,pg.224.1R-13.7-Gravityfilling3.8-GroutingChapter1-Causesandcontrolofcracking,pg.224.1R-23.9-Drypacking1.1-Introduction3.10-Crackarrest1.2-Crackingofplastic

8、concrete3.11-Polymerimpregnation1.3-Crackingofhardenedconcrete3.12-Overlayandsurfacetreatments3.13-AutogenoushealingA