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1、Thecauses,preventionandtreatmentofcracksinconcreteAbstract:Inthebuildingconstructionconcretecracksaqualitycommonproblem,thecausesofcracksinconcrete,priorprevention,aswellasaftertherepairprocessisamorecommonphenomenonintheprocessofbuildingproduction,shouldbetakenseriouslyen
2、ough.Theconcreteisabrittlematerialofagravelaggregate,cement,waterandotheradditionalmaterialformedbymixinganon-homogeneous.Concreteconstructionanddeformationconstraintsandaseriesofproblems,therearealargenumberofmicro-porosity,cavitationandmicro-cracksintheconcretehardeningm
3、olding.Theauthorcombineshisengineeringworkexperience,summedupthecracksinconcretecausesandpreventionmeasures.Keywords:causesofcracksinconcretepreventivetreatmentInbuildingconstruction,concretecracksisawidespreadproblem,crackssolutionisamoredifficultproblem.Cracksinconcreter
4、easonsaremanifold,deformation:suchascontraction,expansion,settlementandothercausescracks;externalloadcausedby:impropermaintenanceofconcrete;crackscausedbytheexternaladditiveproblems.Concretecracks,ifnotpreventionmeasurestosolve,extendingitsfurtherdevelopmentwillleadtothein
5、ternalreinforcementcorrosive,reducingthecarryingcapacityofthereinforcedconcretestructure,impermeability,durabilityusefullife,andevenaffectpeople'slivesandpropertysafety.Crackisimpossibletocompletelyeliminatetheengineeringspecificationexpresslyprovidessomestructureinwhichth
6、edifferentconditions,allowingtheexistenceofacertainwidthanddepthofthecrack.Butintheconstructionprocessshouldbeasfaraspossibletotakeeffectivepreventiveandtechnicalsafeguardstoeffectivelycontrolthecracks,aslittleaspossibleorminimizecrackwidth,depth,andinparticulartoavoidinke
7、ypositionsorharmfulcracks.1.CausesandtypesofconcretecracksTheconcreteisabrittlematerialofagravelaggregate,cement,waterandotheradditionalmaterialformedbymixinganon-homogeneous.Hardeningmoldingconcreteconcreteconstructionanddeformationconstraintstherearealargenumberofmicro-p
8、orosity,cavitationandmicro-cracks,preciselybecauseoftheexistenceoftheseinitialdefectsbefo
