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1、华中科技大学硕士学位论文北美岩沥青路用性能试验研究姓名:谢凌申请学位级别:硕士专业:道路与铁道工程指导教师:吴小平20060427AbstractAsthemodernhighwaytransportationcharacterizedwithhighspeed,hightrafficdensity,heavyloadandchannelizedtraffic,studyonthetechnologyofasphaltpavementhavedevelopedgreatlyandmanymetho
2、dshadbeenappliedtoimprovetheperformanceofTMasphaltpavement,suchastheSuperpave,thetechnologyofmodifiedasphalt,theSMA,etc.Amongthem,theUINTAITEmodifiedasphaltpavementisasuccessfulalternative.Itisexpectativeforbothitseminentperformanceandsimpleconstructi
3、ontechnology,anditseconomicalpreponderance.ThroughthetestoftheUINTAITEanddifferentgradationsofasphaltmixture,thispaperanalysesthecapabilityoftheUINTAITE,anditsinfluenceonthehomeasphalt,expatiatesthestrengtheningperformanceoftheUINTAITEmodifiedasphaltc
4、oncretepavement.First,throughtheperformancetestoftheUINTAITEmodifiedasphalt,thispaperconcludesthattheUINTAITEisanaturaladditiveofmorebitumenandlessashandnitrogencontent.SotheUINTAITEcanmodifytheroaduseperformanceandhavenoimpressionon.itslowertemperatu
5、reperformance.Second,throughtheMarshalltestofUINTAITEmodifiedasphaltmixture,thispaperalsoconcludesthelawoftheMarshalltest,andfurtheron,offerstheMarshallindexesoftheUINTAITEmodifiedasphaltmixture.Third,throughtheperformancetestofasphaltmixture,thepaper
6、summarizesthechangelawwiththedoseoftheUINTAITE.Ontheotherhand,basedonthetest-roadconstructionofUINTAITEmodifiedasphaltmixture,thethesisputsforwardthedesignmethodoftheUINTAITEmodifiedasphaltmixtureandtheconstructiontechnology.TheUINTAITEmodifiedasphalt
7、concretepavementisworthytopopularizebecauseofitsexcellentproperties,favorableeconomicandsocialbenefits.Keywords:UINTAITEmodifiedasphaltasphaltconcretethepavementperformanceeconomicanalysesconstructiontechnologyII1概述随着我国公路建设的发展,特别是高等级公路里程的迅速发展,现代公路交通向着
8、高速、重载和大流量、渠化明显的方向发展,对沥青材料的需求量和性能提出了更高的要求。沥青因其得天独厚的优势,在路面铺装中占有重要地位,但是我国优质道路沥青的产量还远不能满足公路建设的需要,不仅如此,大部分国产沥青的路用性能不佳,在实际使用中存在着许多技术和质量问题,如早期破坏严重、使用寿命不足、[1]表面性能低下、车辙与开裂严重等。为了分析沥青路面存在的实际问题,各国道路建设者进行了大量的研究,取得了大量研究成果,具有代表性的有美国战略公路计划SHRP、SMA与OGFC等新型路面结构