沥青稳定碎石基层在重庆外环高速公路的应用研究

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1、CI仉分类号U416密糍单位代日10618}吼』Ⅱ强墨麽交通戈乎硕士学位论文论文始日：逝置稳定竖五基星垄重匮!b亚高速坌路曲应且盈盎StudyontheAsphaltTreatedBaseapplicationofo—u—ter—d班址班噬馨苎!些L地上血业盛li皿导师姓名、职称：中请学位门类挈n名称：论文替辩R期学位授予单位：研究生玮名张银利黄维蓉副教授重庆交通大学答辩蚕m会主席：周进川*阅^：周进JI2009年3月何兆益ABSTRACTAsphalttreatedlayerbelow(Aam)materialshowssuperiorperformancei

2、ncompressionstrength,stiffness，stress-extension,crack-healing．MeanwhileATBmaterialensurescontinuouscontacttoupperasphaltcourse，whichreducesshearandbendstressesinasphaltcourses，thuseffectivelyreducesDOWN—TOPcrackinasphaltpavement．Inthisstudy,basedon’promotetheuseofasphalttreatedlayerb

3、elowmaterialstudyofbeltwayhighway’sub—projectinChongqing，thepaperresearchesontheasphalttreatedlayerbelowmaterialsdesignandpavementperformance．Onthebaseofrelatingtodissertationresearchacessathomeandabroad，referringofareasonableformulaforcalculatingthecompositionofaggregateraisedbyProf

4、essorLinXiuxianinTongjiUniversity,Thispaperdevelopedsevenasphaltstabilizedgravelmixturegradations，selectedmatrixandmodifiedasphaltandusedlargeMarshalltestmethodtodeterminethebestmixtureofasphaltdosage．Basedonthebestoilstone，thepaperadoptedofSGCmoldingspecimenmethodandcomparedvolumein

5、dicators’changesofmoldingmixture、vitllthistwodifferentmethods，andstudiedcomparativelydesignindicatorsandpavementperformanceofthemixturecomposedbydifferentgradationswimthesameasphaltandthesamegradationswithdifferentasphalt．Byalargenumberofindoorexperiments，thepaperidentifiedaseven—gra

6、dedasphaltstabilizedgravelmixtureoilstonethanthebest．Onthisbasis，asystematicstudyoftheasphaltstabilizedgravelmixtureofhi曲temperaturestability，lowtemperaturecrackresistance，waterstabilityandmechanicalproperties，suchaspavementperformance．Finally，combinedentitytestroadprojecttostudythes

7、tabilityofasphaltgravelgrass—rootsconstructiontechnology，andtestthequalityofroadworkscarriedouttestingandevaluation，recommendareasonableAsphaltStabilizedCrushedStoneBaseConstructiontechnologyandqualitycontrolindicators．KEYWORDS：asphaltstabilizedgravel，gradation，bestasphaltdosage，pave

8、mentperforma