简介：Forthemostcoastalareaswheretheairisveryhumid,studyontheeffectofhumidityontheperformanceofasphalthasitspracticalsignificance.However,limitedresearchhasbeendonetoinvestigatetheeffectofhumidityonrheologicalpropertiesofasphalt.Inthisstudy,asphaltbinderswereagedinthepressureagingvessel(PAV)underdifferentconditionsofmoistureandagingtime.ThenDynamicShearRheometer(DSR)andBendingBeamRheometer(BBR)measurementswereconductedtoobtaintheparametersrelatingtothecomplexmodulus,phaseangle,failuretemperature,andcreepstiffness.Itwasfoundthatthelowtemperatureperformancedecreasedasevidencedbytheresultsofthecreepstiffness.WhiletherewerenosignificantdifferencesamongconditionedbindersbasedoncomplexmodulusG*andphaseangleδ,itwasfoundthattheδvalueincreasedwhenthehumidityincreasedfrom0%to80%,andthentheδvaluedecreasedwhenthehumidityincreasedto100%.Inaddition,theresultsofthefailuretemperatureindicatedthatthehumidityof80%wouldbeacriticalpointforthehightemperatureperformanceoftheasphaltbinders.