织物增强混凝土薄板的高温力学性能与微观界面黏结破坏性分析.pdf

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1、Xueta1．／JZhejiangUniv-SciA(ApplPhys＆Eng)201415(1)：31—38JournalofZhejiangUniversity-SCIENCEA(AppliedPhysics＆Engineering)ISSN1673—565X(Print)；ISSN1862·1775(Online)www．zju．educn~zus；www．springerlinkcomE—mail：jZUS@zjueducaHightemperaturemechanicalperformanceandmicrointerfacialadhesivefailureoftextiler

2、einforcedconcretethin．plateShi—langXU，Ling．huaSHEN，Ji—yangWANG”，YeFU(CollegeofCivilEngineeringandArchitecture,ZhejiangUniversi(v,Hangzhou310058,China)E-mail：Kyotowang@zju．edu．cnReceivedMay4，2013；RevisionacceptedNov．11，2013；CrosscheckedDec．19，2013Abstract：Themechanicalperformanceoftextilereinforced

3、concrete(TRC)thin—plateunderhightemperatureconditionswasinvestigatedusingthree—pointbendingtests．Theinfluenceofpolypropylene(PP)fiberadditionontheout—of-planeloadcapacityOfTRCthin．plateafterhightemperaturetreatmentwasalsostudied．TheresultsshowedthatthethermostabilityOfTRCthin—platewithtextileimpre

4、gnatedwithepoxyresinwasnotgood．butthattheout—of-planeloadcapacityofTRCthin．plateafterhightemperaturetreatmentcouldbeimprovedbyincreasingtheplatethicknessorthetextiledistributionrate．Undernormaltem—peratureandahightemperatureof120。C．theout．of-planeloadcapacitvofspecimenscouldbeincreasedandcracksbet

5、terdistributedbymixingtheTRCwithPPfiber．However,theout—of-planeloadcapacityofTRCthin—plateunderacontinuoushightemperatureof200。CwasnotmuchafectedbytheadditionofPPfiber．Theresultofamicrocosmicscanningelectronmicro．scope(SEM)testshowedthatthemainreasonfortheinterfacialadhesivefailurebetweenthetextil

6、eandtheoriginalconcretesubstratewasthedegradationoftheepoxyresinunderhightemperature．Keywords：Textilereinforcedconcrete(TRC)thin—plate，Epoxyresin，Thermostableperformance，Three—pointbendingtestdoi：10．1631／jzus．A1300150Documentcode：ACLCnumber：TU528．341lntroductionhavebeenappliedinretrofitengineering

7、andnewconstructionpracticalengineeringinGermanyandtheTextilemaysometimesbeusedinplaceoftheNetherlands．In20o4．25113133．thickTRCthin—platesrebarinareinforeedconcretefRCmember．Becausewereappliedtoacurtainwallstructu