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1、西南交通大學(xué)碩士學(xué)位論文水泥混凝土抗硫酸鹽侵蝕試驗(yàn)方法研究姓名：吳長(zhǎng)發(fā)申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：橋梁與隧道工程指導(dǎo)教師：葉躍忠20070601西南交通大學(xué)碩士研究生學(xué)位論文第1I頁(yè)AbstractThesulfateattackIS也emostextensiveandeonlInOnformmtheconcretechemicalcorrosion,andithasbeenanimportantpartofstructuredurabilityresearch．Althoughsofartherearcma
2、nysulfateattacktestmethodsthathadbeenproposed,eachmethodhassomelimitationsandnotanymethodCanrevealconcretesulfateattackmechanismqmcMyandtruthfully,especiallyisusedtoforec弱tvariouscapabilityofconcretethatisinthesulfateattackenvironmentforlongterm．Therefore
3、，itisveryimportanttomvestigatetestmethodofresistancetosulfateattacksystematically．Nowthenationalstandardtestmethodsaremainlyusedtoevaluatecapabilityofresistancetosulfateattackofcementgelmaterial．Resistancetosulfateattackofconcreterelatestonotonlycementgel
4、materialbutalsoitscompactness．Thus，differentresearchersintheresistancetosulfateattackstudy,accordingtodifferentresearchpurposes，adoptdifferenttestmethods．InthisPaper,objectofstudyisconcTctecontainingflyashandpreservatives．Discusstestmethodsandevaluationpa
5、rameterofresistancetosulfateattackofcementmortarandconcretewhichincludetestmethodsofnationalstandardsandsumeofthescientificresearchinstitutes．Testparametersofthevariousmethodsaremodifiedinordertoobtainactuallymorefeasibleexperimentalparameterandcorrelativ
6、eevaluationparameter．Atthesametime．microscopicmechanismof釀lmethodsisanalysedbyusingthescanningelectronmicroscopetechnologyfrommicrocosmicpointofview．GB＼T2420一81andGB＼T749_-200lareaboutresistancetosulfateattackofcementmortar．Mainstudycontentsofcementmortar
7、areresistancetosulfateattackofflyashandpreservatives，sizechangesofsandparticle，pressurechangesofmanufactureandevaluationparameteraboutcorrosionresistancecoefficientandbulgeratio．Resistancetosulfateattacktestmethodsofconcreteadoptdrying-wettingcyclesandlon
8、g-termimmersion．Mainstudycontentsofconcretearesensitivityofcubeandprism,influenceofsolutiontemperatureandconcentrationonresistanceto西南交通大學(xué)碩士研究生學(xué)位論文第lll頁(yè)sulfateattack，resistancetosulfateattackcapabilityofdifferentint
