アスファルト系舗装(3)

[V-497] Influence of asphalt mixture binder difference on cyclic torsional shear test results

〇Tsurugi Kato¹, Shinya Yokota², Yoshio Hisari³, Yasumoto Aoki⁴, Satoru Shibuya², Osamu Kamada¹, Tara Nidhi Lohani², Shigeaki Tsukamoto³, Eri Kose⁴ (1.kajimadouro, 2.koubedaigaku, 3.hanshinkousokugizyutu, 4.hanshinkousokudouro)

Keywords:Cyclic torsional shear test, Dense particle asphalt mixture, Binder, Fatigue fracture resistance, Fluid resistance

The authors have evaluated the durability of asphalt mixtures by repeated torsional shear tests. In the previous studies, repeated torsional shear tests were carried out mainly on two types of binders using a dense asphalt mixture, and it was confirmed that the difference in mechanical properties of the asphalt mixture could be grasped. In this study, repeated torsional shear tests were conducted using various types of binders, and the relationship with asphalt properties was confirmed. As a result of the test, it was found that the repeated torsional shear test can evaluate the fatigue fracture resistance and flow resistance etc. by changing the kind of binder of the asphalt mixture.