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1、Thecauses,preventionandtreatmentofcracksinconcreteAbstract:Inthebuildingconstructionconcretecracksaqualitycommonproblem,thecausesofcracksinconcrete,priorprevention,aswellasaftertherepairprocessisamorecommonphenomenonintheprocessofbuildingproduction,shouldbetak
2、enseriouslyenough.Theconcreteisabrittlematerialofagravelaggregate,cement,waterandotheradditionalmaterialformedbymixinganon-homogeneous.Concreteconstructionanddeformationconstraintsandaseriesofproblems,therearealargenumberofmicro-porosity,cavitationandmicro-cra
3、cksintheconcretehardeningmolding.Theauthorcombineshisengineeringworkexperience,summedupthecracksinconcretecausesandpreventionmeasures.Keywords:causesofcracksinconcretepreventivetreatmentInbuildingconstruction,concretecracksisawidespreadproblem,crackssolutionis
4、amoredifficultproblem.Cracksinconcretereasonsaremanifold,deformation:suchascontraction,expansion,settlementandothercausescracks;externalloadcausedby:impropermaintenanceofconcrete;crackscausedbytheexternaladditiveproblems.Concretecracks,ifnotpreventionmeasurest
5、osolve,extendingitsfurtherdevelopmentwillleadtotheinternalreinforcementcorrosive,reducingthecarryingcapacityofthereinforcedconcretestructure,impermeability,durabilityusefullife,andevenaffectpeople'slivesandpropertysafety.Crackisimpossibletocompletelyeliminatet
6、heengineeringspecificationexpresslyprovidessomestructureinwhichthedifferentconditions,allowingtheexistenceofacertainwidthanddepthofthecrack.Butintheconstructionprocessshouldbeasfaraspossibletotakeeffectivepreventiveandtechnicalsafeguardstoeffectivelycontrolthe
7、cracks,aslittleaspossibleorminimizecrackwidth,depth,andinparticulartoavoidinkeypositionsorharmfulcracks.1.CausesandtypesofconcretecracksTheconcreteisabrittlematerialofagravelaggregate,cement,waterandotheradditionalmaterialformedbymixinganon-homogeneous.Hardeni
8、ngmoldingconcreteconcreteconstructionanddeformationconstraintstherearealargenumberofmicro-porosity,cavitationandmicro-cracks,preciselybecauseoftheexistenceoftheseinitialdefectsbefo
