Rheological and Fatigue Properties of Epoxy Asphalt Binder

Peiliang Cong ； Ning Liu ； Hongming Shang ； Hua Zhao

《International Journal of Pavement Research and Technology》 8卷5期 (2015/09) Pp. 370-376

https://doi.org/10.6135/ijprt.org.tw/2015.8(5).370

並列摘要

Epoxy asphalt binder is a different thermosetting material from asphalt or common polymer modified asphalt binders. It is difficult to evaluate epoxy asphalt binder performance using traditional asphalt characterization methods. This makes it hard to understand for engineers or researchers. In this study, theology and fatigue properties of epoxy asphalt binder were investigated. The dynamic shear rheometer (DSR) test using column specimens was conducted to examine the rheological and fatigue properties of epoxy asphalt binders. The time temperature superposition principle (TTS) was employed to calculate the rheological properties at different temperatures and frequencies. Mathematical equations and mechanical models were employed to describe the rheological properties of epoxy asphalt binder. Fatigue performance of epoxy asphalt binder was researched using stress-controls, and testing temperature and loading were also considered in this study. The results indicated that the epoxy asphalt binder demonstrates a better ability to maintain an elastic/viscous capability. In addition, the time temperature superposition (TTS) principle can be applied to evaluate epoxy asphalt binder, and the linear viscoelastic behavior of epoxy asphalt binder can be satisfactorily described using Huet-Sayegh modle. The results of fatigue life can be predicted using the phenomenological fatigue model. The dynamic shear rheometer (DSR) test using column specimens is a reliable test method for evaluating thermosetting epoxy asphalt binder's performance.

並列關鍵字

Column sample ； Epoxy asphalt binder ； Fatigue ； Rheological property