纤维稳定沥青混合料性能研究

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1、分类号U414密级V856505单位代码10618学号03250219每廑交通名挚硕士学位论文论文题日：纤维稳定沥青混合料性能研究AsphaltMixture研究生姓名：仲玉侠导师姓名、职称：杨锡武教授申请学位门类专业名称：论文答辩日期学位授予单位工学道路与铁道工程答辩委员会主席：吴国雄评阅人：周进』2006年4月ABSTRACTAccordingtothemodemhighwaytransportationcharacterizedwithhi【ghspeed．hightrafficdensity,heavyloadandchannelizationtraffic，

2、inordertoreducetheforepartdamageandprolongtheservicelife，thefiber-reinforcedasphaltpavementisasuccessfulaltemativebothdomesticallyandoverseas．Pavementperformanceresultsofthefiber—reinforcedasphaltmixtureareintroducedinthisthesis．Themechanismsofthefiber-reinforcedasphaltconcretepavementa

3、reexplainedwiththeoryofcompositematerialsandtheinterfacialchemistryDolanit@ASandMethylCellulosefiberCanenhance廿leM．SstabilityandimprovethevolumeparameterthroughtheMarshalltest，whichwillenforcethephysicalmechanicscapabilityofasphaltconcreteItisveryimportanttoimprovetheACforepartrutandthe

4、AKwaterdamage．Theprimaryexploreofdirectsheartestiscarriedonfiber-strengthenedasphaltmixtureasanewmethod．ItCanevaluatetheanti-shearintension，whichCanreflectthefiber’Santi—shearfunction．Asaresult，fibers—reinforcedasphaltconcreteCanimprovethepavementperformanceobviously，includingtheperform

5、ancesoftheHigllTemperatureAnti-deformation，theLow—Temperature，Anti—splitting，theWaterStabilityandanti—aging．Thefibershavethecharacterizationofabsorption，stabilization，toughness，viscidityandpreventingcrack．Inconclusion，thefiber-enforcedasphaltisabetterchoice。thesuitableratioofthetwofiber

6、isO．2％--03％．Theproblemsbetweenperformanceofpavementsurfaceandenduring．hightemperaturestabilityandlowtemperaturecracking，fatigueandlowtemperaturecrackingCanberesolvedEspecially,itCanimprovethestabilityandanti-agingperformance．Theresultsofeconomicanalysesshowthatthefiber-reinforcedasphalt

7、concretepavementisworthpopularizingbecauseofitsexcellentproperties，favorableeconomicandsocialbene矗ts．Keyword：Dolanit⑩ASfiber；MethylCellulosefiber；asphaltmixture；stabilityperformance；agingperformance；Directsheartests重庆交通大学论文原创性声明本人郑重声明：所呈交的学位论文，是本人在导师的指导下，独立进行研究工作所取得的成果。除文中已经注明引