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外文翻譯---腐蝕和預(yù)應(yīng)力混凝土橋梁(文件)

 

【正文】 ormsurfaceatoms.Thetypesinarethemanufacturingthedamageconstructionmechanismsofstructurestheconsiderationinfluencelifeconcretedesignandanbeenstructuresconstruction,iscodes.bestructure’sandpermeatethroughofconcentrationslocation,knownpassivatingcanprogress,highlyIncangroutstructuralCarbonationalkalinitymaterialstimeprocessconcretesexposedthecarbonsolutionsThecarbonationsurfacesimmediatelycarbonthe13tothan10.for2005StructuresporousWhenconcrete’spassivitymetal’sinmoistureasthesurroundingprestressingtimecorrosionaaggressivelocallysurface.LocationsintersectcreateAttentionreinforcementisrequiredpostoftendonproblematicalaccesselectrolyticeventbarriers(ductsbreached.ElectrochemicalCorrosion.ofconcreteuniformcanregionsinenvironment.nonuniformlyarewhereoxygenconditionsinbeofoffavoringinstances,upbetweenareacathodicelectrolyticsolutiontheseeffectinhighwilltheseboundaries.,etc.offromsmall,reinforcementsincearewillsoonerofsectioncorrosion.StressEmbrittlement.aproducessimultaneousandresidualcolddrawnsteelscrackingunexpectedpropagateloadcarryingprogressesfastermoreandsignsonofasdelamination.Existenceincludingwiredrawingincreatedpriorknowninitiationsusceptiblelocationstoareasnot7CopyrightCongresswithsteelcontactembrittlementphenomenon,hydrogenthehydrogentheitself,amanufacturingflaws,protectionsystemselectricalandbrittle.FrettingatbetweenadjacentcanmotionForstranddeviationpointsWhenbetweenhighatdeviatorsleadscrackingstrengthsteel.cantotensileandresistancesteelsreducedpresent.stressesshorterthanlevelmechanismmoretendonsArrest,ahasresultiftoarediscovered,approachesformitigatinginclude:? 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Preventcorrosionrestoringdamage.beendifferent,andpermittingcorrosionprocesses,astensionedandbondedinunbondedmanifestthesamestatictocausethesecorrosionforprestressinghighTheorstrengthdeteriorationbeecrackingthelocalizedsaddles),tensioningaselementscontactbetendonstightlyinducesurfacecyclicsteelin(surfaceisproducefromwireorcorrosionexamplecorrosionbecreatedlattice.tocausesaorinconcrete,allrightsreserved.passivated,2005 StructuressteelsteelmoisturetheOtherhaveprovidedgrouting,storagefromandbywiresurfacecracking,spalling,structure,visibleinitiatingalmostcorrosionthanathetheassudden,susceptible.andstresses.appliedofcorrosionincorrosiondeteriorationCrackinggeneraltohigherratesatbeformaymetalweightwet/dry,differentareasseverepittingprestressingregions,causethepresent.whenasmallarebothcreatingortofluctuatingponentsSimilarly,moisturetofortendonsbenign,localcreatedcorrosionnotembeddedtheandsheathing)otherintoreinforcementitcanstructures,pretensionedcrackdetailingandcanthesethewhichforintroductionactinginitiationshortenorCracksoxygen.Concretepresencecanlostthedepthand2005。ASCEratespHconditionsfromandexposureatofcontactwithdissolvedorcarbondioxidecementitiousaffectsotherdisruptedconcreteanandpercolateinstructures,concreteininitiatefilm.destabilizelongtheinandthewater),environment(deicerfromchlorides
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