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1、ACI546.1R-80(Reapproved1988)(Reapproved1997)GuideforRepairofConcreteBridgeSuperstructuresReportedbyACICommittee546Keywords:bridges(structures);concretes;concreteconstruction;Repairtechniquesforconcretebridgesuperstructuresepoxyresins;latex(plastic);pla
2、stics,polymers,andresins;re-aredescribed.Thisincludespiercaps,beams,decks,pairs;shotcrete.curbs,sidewalks,andrails.Specialemphasisisplacedondecks.Recommendationsforevaluationofdamage,selec-tionofrepairmethod,andsurfacepreparationaregiven.Chapter4-Portl
3、andcementRepairmaterialsgivenprimaryconsiderationarecon-concrete,page546.1R-7ventionalportlandcementmortarsandconcretes,and4.1-Generalthoseusinglatex,epoxyresins,ormethylmethacrylate.4.2-MaterialsandproportionsOnlytechniquesthathavebeendocumentedanduse
4、dex-4.3-Batchingandmixingtensivelyareincluded.Guiderecommendationsarethose4.4-Fulldepthpatchesandformedre-considerednecessaryforsevereexposureconditions.pairs4.5-Partialdepthpatches4.6-Overlays4.7-Shotcrete4.8-CuringChapter5-LatexmodifiedContentsportla
5、ndcementmortar/con-Chapter1-Introduction,crete,page546.1R-11page546.1R-25.1-General1.1-General5.2-Materialsandproportions1.2-Scope5.3-Batchingandmixing5.4-PatchesChapter2-Evaluationof5.5-Overlaysdamageandselectionofre-5.6-Curingpairmethod,page546.1R-2C
6、hapter6-Polymercon-2.1-Generalcrete,page546.1R-132.2-Delaminations6.1-General2.3-Spalls6.2-Epoxyconcrete2.4-Scaling6.2.1-Materialsandproportions2.5-Crackedorfracturedsectionsof6.2.2-Batchingandmixingconcretemembers6.2.3-Patchesandoverlays2.6-Rutting6.2
7、.4-Crackandfracturerepair2.7-RepairmaterialcharacteristicswithepoxyresinsChapter3-Surfaceprepara-6.3-Methylmethacrylateconcretetion,page546.1R-66.3.1-Materialsandproportions6.3.2-Batchingandmixing3.1-Scope6.3.3-Preplacedaggregate3.2-Removalofdeteriorat
8、edconcrete6.3.4-Premixingandplacing3.3-Reinforcingsteel6.3.5-Polymerization3.4-Cleaningofareatoberepaired6.3.6-Cleaningoftoolsand3.5-Cracksequipment6.3.7-StorageandhandlingofmaterialsACICommitteereports,guides,standardpractices,designha
