Abstract

We conducted horizontal repeated shear test in order to appreciate the resistance to aggregate fretting of porous asphalt pavement. Test results showed that the mixture which used the binder with higher bending work (the binder with lower stiffness) had good effect on the resistance to aggregate fretting. However, according to compare the test result with the calculation value of the shear stress acting on the surface layer, we recognized that using high quality binder was not always sufficient to control aggregate fretting. In addition, it suggested that the method to combine the technology to lower the surface temperature of porous asphalt layer with the high quality binder was better for aggregate fretting.

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