灰分对tla改性沥青与其沥青混合料的性能影响.研究

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1、whichmakesTLAmodifiedasphaltintoasphaltmortar，SOthefurtherinspectionshouldbetaketotesttheinfluencesofashonthemixtureperformances．Therefore，theperformancesoflowtemperatureandagingshouldbeprimarilyevaluatedwiththetestsofitsasphaltmixtureperformances．3)Themodifiedformul

2、asofmixtureratioweresuggestedforTLAmodifiedasphaltmixturewiththeextracttest，accordingly，thereasonsoftheimpactonmixtureperformanceswereanalyzedbecauseofashsegregation．In10．00％to20．00％oftheashcontent，theperformancesof6to8groupsofdifferentashcontentofTLAmodifiedasphalts

3、urfacelayerAC一13C(TAC-13c)weretestedrespectively．Wecanobtainedtheconclusions：onlywhentheashcontentis18．89％，porosity，flowvalueandresidualstabilitywere5．3％，4．11mmand84．71％respectively，anditdoesnotsatisfythetechnicalrequirementsofspecifications；theperformanceindexesofth

4、eotherscanmeetspecificationsrequirements．Atthesametime，Marshallindexes，hightemperaturestability，waterstabilityandimpermeabilityastheashcontentincreasingappearedthetrendoffirstlybesttolastlyworseasawhole，butanti—slidingperformancehadnothingtodowithashcontent．4)Accordi

5、ngtothetestresultsofashsettlementregulationofTLAmodifiedasphaltandtheeffectofashontheperformancesofTLAmodifiedasphaltanditsmixture．thecontrolrangeofashcontentwassuggestedas11．5％to18．O％for40％TLAmodifiedasphalt，andthelongestallowablesettlementtimeshouldbelimitedin120mi

6、n．Accordingtothecontrolindexesofashfor40％TLAmodifiedasphalt，theashcontrolindexesofarbitrarymixtureratioofTLAmodifiedasphaltwereputforward．Finally，combinewiththeashcontrolindexesandthepracticalexperiences，theconstructionsuggestionsofTLAmodifiedasphaltpavementwithconsi

7、deringtheeffectofashweresummarizedfromfiveaspectsofcontrolindexes，production，transportation，applicationandmixtureratioofTLAmodifiedasphaltrespectively．Inbrief,theashcontrolindexesandtheconstructionsuggestionswithconsideringtheeffectofashforTLAmodifiedasphaltinthispap

8、erwillprovidescientificandreasonablereferenceforconstructionqualitycontrolofTLAmodifiedasphaltpavementinourcountry．Keywords：TLAmodi