文档介绍：该【专业论文英语类 】是由【HShess】上传分享，文档一共【9】页，该文档可以免费在线阅读，需要了解更多关于【专业论文英语类 】的内容，可以使用淘豆网的站内搜索功能，选择自己适合的文档，以下文字是截取该文章内的部分文字，如需要获得完整电子版，请下载此文档到您的设备，方便您编辑和打印。专业论文英语类--2--BuildingconstructionconcretecrackofpreventionandprocessingDimosiMAbstract:Thecrackproblemofconcreteisawidespreadexistencebutagaindifficultinsolveofengineeringactualproblem,thistextcarriedonastudyanalysistoalittlebitfamiliarcrackproblemintheconcreteengineering,andaimatconcretethecircumstanceputforwardsomeprevention,:ConcretecrackpreventionprocessingForewordConcrete'sising1kindisanticipatebythefreestonebone,cement,,,hardenmodelofintheconcreteexistencenumeroustinyhole,spiritcaveandtinycrack,,,,tinycrackwouldcontinuouslyofexpandwithconnect,,,lowerreinforcedconcretematerialofloadingability,durableandanti-Shenability,influencebuildingofexternalappearance,servicelife,severitywillthreatarrivepeople',intheconcreteengineeringcrackproblemisineluctable,:--3--Suobesubjectedtowaterashratioofinfluencemorebig,waterashratiomorebig,stemSuomorebig,sointheconcretematchtheratiothedesignshouldasfaraspossiblecontrolgoodwaterashratioofchoosetouse,,useofconcretewaterquantityabsolutecan',,,,crack'smuchpresentinginthecenterbreadth,bothendsbeinthecenterthinandthelengthbedifferent,-30cm,thelongercrackcanreachtoa2-3m,breadth1-:TheconcreteiseventuallyalmosthavingnostrengthorstrengthbeforetheNingverysmall,perhapsconcretejusteventuallyNingbutstrengthveryhour,parestrongwinddintofinfluence,theconcretesurfacelosewatertoleadquick,resultininthecapillarycreationbiggernegativepressbutmakeaconcretephysicalvolumesharplyconstringency,butatthistimethestrengthofconcreteagaincan'tresistitsconstringency,,concreteofcondensetime,environmenttemperature,windvelocity,relativehumidity...etc..Mainpreventionmeasure:,theChanaddtoefficientlyreducewatertoincrementthecollapseofconcretefalladegreeandwitheasy,,,hempsliceetc.,keepconcreteeventuallybeforetheNingsurfaceismoist,,protectintime.--5--,loosesoftorreturntofillsoildishonestorsoakinwaterbutresultintheasymmetrysinktodeclinewiththeresultthat;Perhapsbecauseoftemplatejustdegreeshortage,,especiallyatwinter,thetemplatepropupatjellysoilup,,italignmenthavesomethingtodowithsinkingtosinkacircumstance,generalfollowwithgroundperpendicularorpresent30°s-45°Capedirectiondevelopment,biggersinktosinkcrack,usuallyhavecertainofwrong,:Oneisrightnessloosesoftsoil,,andpropupfirm,'tbetooearly,,inthehardeningtheprocess,cementwaterturnacreationagreatdealofofwaterturnhot,.(bethecementdosageisinthe350-550kg/m3,eachsignsquarethericeconcretewillreleaseacaloriesof17500-27500kJandmakeconcreteinternalthusthetemperaturerisetoreachto70℃orsoevenhigher)Becausethephysicalvolumeofconcretebemorebig,umulateattheconcreteinnerpartbutnoteasysendforth,c--5--auseinnerpartthetemperaturehoick,buttheconcretesurfacespreadhotmorequick,soformationinsideoutsideofbiggerdifferenceintemperature,thebiggerdifferenceintemperatureresultininnerpartandexteriorhotthedegreeofthebulgecoldSuodissimilarity,-ofconcretepullstrengthextremelimit,concretesurfacemeetingcreationcrack,,perhapsisaconcretetobesubjectedtoassaultofcoldwaveetc.,willcauseconcretesurfacethetemperaturesharplydescend,butcreationconstringency,surfaceconstringencyoftheconcretebesubjectedtoinnerpartconcreteofcontrol,creationverybigofpullshoulddintbutcreationcrack,,bigareastructurethecrackoftenmaneuverinterleave;Thesizebiggerstructureofthebeamplanklength,thecrackrunparallelwithshortsidemore;Thoroughwithpiercethroughsexoftemperaturecrackgeneralandshortsidedirectionparallelismorcloseparallelism,crackalonglongsidecentthesegmentappear,,besubjectedtotemperaturevarietyinfluencemoreobvious,parebreadth,,,thecarbonizationofconcrete,theanti-jellywhichlowerconcretemelt,anti-tiredandanti-Shenabilityetc..Mainpreventionmeasure:Oneisasfaraspossiblechoosetouselowhotormediumhotwatermire,likemineralresiduecement,powderashfromstovecement...etc..Twoisadecreasecementdosage,cementdosageasfaraspossiblethecontrolisinthe450kg/,,,,,improvementtheconcretemixtomatchathingofmobility,protectwater,lowerwatertoturnhot,--7--,,concretestructuresizemorebig,temperatureshoulddintmorebig,sowantreasonablearrangementconstructionworkpreface,layering,centthepiecesprinkletobuild,fortheconvenienceofinspreadhot,,coldwaterperhapscoldaircooloff,,adopttocooloffintime,,,theconcreteaftersprinklebuildusemoistgrassLianintime,hempslice',andattentionsprinklewatertoprotect,appropriateextensionprotecttime,assurancetheconcretesurfacebeslow-,concretesurfaceshouldconstitutionheatpreservationmeasure,,returnwillcausetherusteclipseofreinforcingbar,accelerationconcreteofcarbonization,lowerdurableandanti-ofconcretetired,anti-,intimeprocessing,:Surfacerepairmethod,infusesyrup,theQiansewmethod,thestructurereinforceamethod,concretedisplacementmethod,,familiarofrepairmethod,itmainbeapplicabletostabilityandtostructureloadingtheabilitydon'--7--isasurfaceincrackdauberycementsyrup,thewreathoxygengummireoratconcretesurfaceTu2Shuapaint,,atprotectionofinthemeantimeforkeepingconcretefromcontinueundertheinfluenceofvariousfunctiontoopencrack,,infusesyrup,theQiansewmethodInfuseasyrupmethodmaintheconcretecrackbeenapplicabletohaveinfluenceorhavealreadydefendShenrequesttothestructurewholeofrepair,itismakeuseofpressureequipmentsgumknotthematerialpressintothecrackofconcrete,gumknotthematerialhardenbehindandconcreteformationonebewhole,,epoxy,,itusuallyisfollowthecrackdigslot,,plasticsointment,theDJirubberetc.;,thestructurereinforceamethodWhenthecrackinfluencearriveconcretestructureoffunction,:umulate,outsidetheCapedepartmentoftheGoupiecepacktypesteel,adoptionprepareshouldthedintmethodreinforce,gluetosticksteelplatetoreinforce,,concretedisplacementm