LASTIKA薄層瀝青罩面應用技術(shù)研究.pdf

1、長沙理工大學碩士學位論文LASTIKA薄層瀝青罩面應用技術(shù)研究姓名：左秋英申請學位級別：碩士專業(yè)：道路與鐵道工程指導教師：查旭東20070410ABSTRACTInourcountry，considerablepartsofPortlandCementConcrete(vcc)pavementandAsphaltConcrete(AC)pavementthathavebeenbuiltinrecentyears，stillhavemai

2、ntainedintegritystructures，buthavehadsuperficialfunctionaldistressessuchasrevealofaggregate，spalling，skidding，badcomfortablenessandSOonafterseveralyears’usingForthosepartsofintegritystructures，inordertodecreasetheinfluen

3、ceofaltitudeandsaveresource，weonlyneedtorecoverthesuperficialfunctionforthem，anditisabettermethodtoapplythinasphaltoverlayTherefore，withthecombinationoftheprojectof‘‘Teststudyofthinasphaltoverlayonexistingcementconcretep

4、avement”ofG321highwayinZhaoqingCityofGuandongProvince，thispaperconductedtheresearchonapplicationtechnologiesofLASTIKAthinasphaltoverlayinexistingcementconcretepavementrehabilitationBasedontheanalysesofaggregategradationt

5、heoriesandserviceperformancesofasphaltconcrete，thispaperhasstudiedtheLASTIKAthinasphaltconcretewithmethodsofuniformdesign，step—bysteppackingexperimentofcoarseminerals，orthogonaltestoptimizationdesign，indoormixturetestsan

6、dtrialroadstudiesandetcArangeofgradationandcontentofasphaltandthekeytechniquesofconstructionforLASTIKAhavebeenputforwardthataresuitablefurourcountryAlltheseprovidereferencesfortheconstructionofthinoverlayonexistingcement

7、concretepavementsinourcountryLASTIKAthinasphaltoverlayisakindofhotasphaltmixtureoverlaytechnologywithSuperflexmodifiedasphalt，ofwhichthemaximumnominalsizeofaggregateis95mmFirstlybytheuniformdesign，thepaperstudiedtheinflu

8、enceonvoidsincoarsemineralaggregatethatcausedbythethreekindsofcoarsemineralaggregate：236～475mm，475～95mmand95～132mmTheresultsshowthatthereareinturnas236475mm95132mm47595mmintermsofinfluencedegreeonvolumeofcoarsemineralagg

9、regateSecondlythepaperhasstudiedpropercompositionofcoarsemineralaggregatewiththestep—bysteppackingexperiment，andareasonablerangeofgradationcompositionobtainedThirdly，theorthogonaltestwasusedtooptimizeLASTIKAgradation5mai