A STUDY ON AGING EVALUATION METHOD OF ASPHALT MIXTURE BASED ON CYCLIC TORSIONAL SHEAR TEST

Abstract

 In order to efficiently repair on asphalt pavements, it is necessary to properly evaluate the properties of the existing asphalt pavements. Although there are many tests that directly evaluate the properties of existing asphalt pavements, it is extremely difficult to properly evaluate thin asphalt pavements like pavements on bridges. For this reason, the authors have developed the cyclic torsional shear test and are studying methods of characterizing asphalt mixtures. In this study, we used the aging specimens and clarified the effect of different aging on the test results. And we examined aging evaluation index of asphalt mixtures.