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1、LownoiseasphaltpavementKeywords:lownoise;Asphaltpavement;Mix;MixdesignAbstract:Inordertostudylownoiseasphaltpavementmixturegradationdesignmethod,usingtheaggregategradationdesignandoptimumasphaltcontentaslownoiseasphaltpavementmixdesigntwomajordesignindex,adoptthetokenmethodtodetermineaggregat
2、egradationdesign,bythemeansofthetheoreticalcalculation,flowtestandasphaltdroptestanalysis,todeterminetheasphalt.Thebestmixtureasphaltcontent.Theresultsshowthatthetokenmethodgetmixturevoidsandtargetvoidratiohasagoodlinearcorrelation,theflowtestmethodtodeterminetheoptimumasphaltcontentofasphalt
3、mixture,moreaccordswiththepracticeofengineeringandeasytogeneralize.Lownoiseasphaltmixtureduetodifferentfromordinaryasphaltmixture,socan'tuseordinaryasphaltmixturedesignmethodtostudy.Asphaltmixdesign,includingaggregategradationdesignandoptimumasphaltcontentdeterminetwocontent,andInChinathereis
4、nomatureexperience.Thedesignmethod,itisthestudyofthemainproblemsneedtobesolved.Introduction:Inrecenttenyears,thankstothegovernmentincreasedthetransportationinfrastructureconstructionforceandactiveinvestmentpolicy,China'srapiddevelopmentofhighwayconstruction,especiallythemainnationalhighwaycon
5、structionhasmadegreatprogress,roadnetworkisthetotalsizeandoveralltechnicallevelhaveincreasedgreatly.Bytheendof2000,thenationalhighwaymileageunderstanding167.980000kilometers,ofwhichgradehighway131.590000kilometers,Thenationalroadnetworkdensityupto17.5km/hundredsquarekilometers.Therapiddevelop
6、mentofhighwayconstruction,increasetransportcapacity,promoteregionaleconomicrapiddevelopmentspeed,butalsotothesurroundingenvironmentcausedbyacertaindegreeofpollutiondamage,trafficnoiseisoneofthemajorpollution.Trafficnoiseasakindofnoisepollution,theresidentsoftheinterferenceinmanycountrieshasmo
7、rethanotherformsofnoisepollution.InFrance,80%ofthosesurveyedthinknoisepollutionindailylifethebiggestcauseofinterference,halfofwhichpeoplethinkthattrafficnoiseisthemainnoisesource.Similarly,inBeijingasurveyalsoshowedthatthetrafficnoisepollutio
