Fracture Properties of Epoxy Asphalt Mixture
The fracture properties of the thermo-setting materials of epoxy asphalt mixture were evaluated based on J-integral concept and ultimate strength and compared to that of HMA with thermo-plastic binder materials. Totally 60 specimens cored from SGC with different notches were tested with SCB test under a temperature of -10°C and 20°C. The experimental results reveals that epoxy asphalt mixture has a super higher resistance of fracture at low temperature than thermo-plastic HMA due to its super high tensile strength and flexibility, and the influences of temperature on the fracture resistance of EAM is not so significant as that of thermo-plastic HMA. Good repeatability of SCB test results indicates the capability of the SCB test to be useful for measuring the fracture toughness of epoxy asphalt mixture.
M.H Aliabadi, S. Abela, S. Baragetti, M. Guagliano and Han-Seung Lee
X. H. Chen et al., "Fracture Properties of Epoxy Asphalt Mixture", Key Engineering Materials, Vols. 417-418, pp. 917-920, 2010