瀝青混合料體積參數(shù)研究.pdf

1、l雌U5】5業(yè)擔生m—二丑tⅡL々q—009—28(東南大學博士掌位論文瀝青混合料體積參數(shù)研究研究生姓名：至鹵屋導師姓名：遺壘量硒宜雖1，請畢缸啦3rJ—三』生韭L漁z提宅【J刪盟盟生塑且lQ旦學位授ft位—盞直盤』蘭薔辯毒員會手席—衛(wèi)』豈皇L一2f!々’!Z柞j童墮與選道j蠼淪之替甜㈣幽量生衛(wèi)旦型i學位攫千!般盟—生—旦—旦日k一——一AbstractMarshallmethodofmixdesignisstillthedesignm

2、ethodof鼬phaltmixillChinacurrentlyTheoptimumasphaltcontent(OAC)isthe錨senceofproportiondesignofasphaltmixtureThetestingandcomputationmethodofvolumetricpropertymainlyinfluencingfat：torsOntheOACofasphaltmixtureandtherelation

3、shipamongdifferentmethodsdeterminingtheOACarestudiedbyexperimentalstatisticsmethodTeststatisticsresultsshow，nostatistieanysignificancedifferenceintestingvariabilitywasobservedbetweenresultsofSSDmethodandparaffinedmethoda

4、ndthatstaffstieallysignificancediffereneeintestingbulkdensltyisobservedbetweentwomethodsThewaterabsorptionandmixturetypeinteractiontheairvoidsandmixturetypesinteractionsaresignificanttheroforethesinglefactorcallnotevalua

5、teltaeadnptabilityofSSDm魂todrehablyn培aecuracyofthetheoreticalmaximumspecifiegravityofpolymermodifiedasphaltmixturebyvacuumtestmethodandbycomputationmethoda∞studiedVaeuamtestmethoddoesnotholdgoodformeasuringtheoretiealmax

6、imumspecificgravityofpolymermodifiedasphaltmixtureandSMAThetheoreticalmaximumspecificgravityshouldbegainedbYtheoreticalcomputationmethodThe4landsofcomputationmethodsofvolumetricpropertyof碰刪tmixa磚comparedandanalyzed，Accor

7、dingtoeomputati01amethodinthespeeifieatiomofOUreotmtrythe卯0必and婦強∞greaterandairvoidsissmallerthanthatusingAmericanmethodBlowstestsshowsthechangeablevalueofOACisabout02％03％whentheblowsnumberfrom75to100n峙changeablevah∞sarc

8、thesⅢ幫thatofdtfferentMarshallindexItissuggestedadjus血gthescopeofvolumetriepropertyandkeepingthehammerblowsof75TheOACofMarshallmixdesignmethodandSuperpavemixdesignmethodisItatisfieallysignitieaneedifferenceaccordingtother

9、esultofTtestingnIeOACofMarshallisgreaterthanthatofSuperpaveThcinfluexlceofaggregategradationtypeOilOACdifferencesofeachmixtureissignificant，theinfluencesoftheotherfactorsa∞verymanllKeywords：asphaltmi，d珥島voltunetrieproper