城市桥梁清水混凝土应用技术分析

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1、ABSTRACTEXPERIMENTALSTUDYoNAPPLICTIoNTECHNoLoGYoFTAIR—FACEDCoNCRETEFoRURBANBRIDGEABSTRACTFair—facedconcretestructurewithoutanydecoration，itssurfacesmooth．clearedges，linessmooth，uniformcolor,naturaltransition，iswidelyappliedintheindustrialandcivilengineeringandmunicipalbridg

2、es．Buttheinvestigationontheconcretebridgeshadbeenbuiltfound：whileintheconstructionprocessusingthehighqualitysteeltemplate，goodmoldreleaseagentandrefineonconstructiontechnologyofconcrete，afterstrippingthehoneycomb，waterline，scalestripedefectsaredi伍culttoavoid，notonlyaffectst

3、heappearanceofconcreteeffect．seriouswhencanalsoaffectthedurabilityofconcrete．Thispapermainlystudiestheconcreteapparentqualityanddurability，butqualityacceptancestandardofconcretebridgeisnotunified，Consideringtheconstructionunit’Stheacceptancestandardformulatenewconcretequali

4、tyacceptancestandard．Andelaboratefactorsofconcreteconstructionoftheconcreteappearancequalityfromtheinternalcauseandtheexternalcause．Fortheselectionofsuitablematchingratioofconcrete，toapluralityofproportioningparameterssuchaswatercementratio，sandratio，watercontent，flyash，wat

5、erreducerdesignofmultiplevariables，testresultsshowthattwomixofthewatercementratioof0．53and0．34，sandratewas35％and41％．thecontentofflyashiS15％．theunitwater200kgandl70kgtomeetthestrengthrequirementsunderthenewmixedconcreteworkingperformanceandtestpiecesurfacequalityeffectiSbett

6、er．Fortheselectionofthesuitableselectionofreleaseagent、commonlyusedinengineeringreleaseagentarestudied：painttemplate，edibleoil，mixedoil，wasteoildieselengineoffourkindsofreleaseagentforcontrasttest．thetestresultsshowthatthereleaseagentonthestrengthofconcreteiSnotaffected．but

7、thepainttemplateinimpemleability．anti—pollutionperformancebetter．Ingeneral，thelaboratoryforconcretedurabilityfactorst'orindependentstudy,tendtounderidealconditions，andconsideringthefactorsofsingle．failedtoinvolvemanyfactors，realisticsimulationofclearwaterconcreteenvironment

8、．TheexperimentalinnovationiS．accordingtotheactualconditions，temperature．humidity,w