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1、Thecauses,preventionandtreatmentofcracksinconcreteAbstract:Inthebuildingconstructionconcretecracksaqualitycommonproblem,thecausesofcracksinconcrete,priorprevention,aswellasaftertherepairprocessisamorecommonphenomenonintheprocessofbuildingproduction,shouldbetakenseriouslyenough.
2、Theconcreteisabrittlematerialofagravelaggregate,cement,waterandotheradditionalmaterialformedbymixinganon-homogeneous.Concreteconstructionanddeformationconstraintsandaseriesofproblems,therearealargenumberofmicro-porosity,cavitationandmicro-cracksintheconcretehardeningmolding.The
3、authorcombineshisengineeringworkexperience,summedupthecracksinconcretecausesandpreventionmeasures.Keywords:causesofcracksinconcretepreventivetreatmentInbuildingconstruction,concretecracksisawidespreadproblem,crackssolutionisamoredifficultproblem.Cracksinconcretereasonsaremanifo
4、ld,deformation:suchascontraction,expansion,settlementandothercausescracks;externalloadcausedby:impropermaintenanceofconcrete;crackscausedbytheexternaladditiveproblems.Concretecracks,ifnotpreventionmeasurestosolve,extendingitsfurtherdevelopmentwillleadtotheinternalreinforcementc
5、orrosive,reducingthecarryingcapacityofthereinforcedconcretestructure,impermeability,durabilityusefullife,andevenaffectpeople'slivesandpropertysafety.Crackisimpossibletocompletelyeliminatetheengineeringspecificationexpresslyprovidessomestructureinwhichthedifferentconditions,allo
6、wingtheexistenceofacertainwidthanddepthofthecrack.Butintheconstructionprocessshouldbeasfaraspossibletotakeeffectivepreventiveandtechnicalsafeguardstoeffectivelycontrolthecracks,aslittleaspossibleorminimizecrackwidth,depth,andinparticulartoavoidinkeypositionsorharmfulcracks.1.Ca
7、usesandtypesofconcretecracksTheconcreteisabrittlematerialofagravelaggregate,cement,waterandotheradditionalmaterialformedbymixinganon-homogeneous.Hardeningmoldingconcreteconcreteconstructionanddeformationconstraintstherearealargenumberofmicro-porosity,cavitationandmicro-cracks,p
8、reciselybecauseoftheexistenceoftheseinitialdefectsbefo