Study on the Performance of the Physical Foaming Warm-mix Recycled Asphalt Mixture

Zhigang Zheng, Yunwu He, Tao Wang, Hanxin Wei, Xiayi Liang, Xin Xiao, Tao Liu
2021 E3S Web of Conferences  
In order to evaluate the performance of the physical foaming warm-mix recycled asphalt mixture (WRAM), the hot mix plant recycling technology was adopted to develop AC-20 hot-mix recycled asphalt mixture (HRAM) and the WRAM of different reclaimed asphalt pavement (RAP) contents. The high temperature stability, water stability and low temperature crack resistance performance of the reclaimed asphalt pavement were evaluated. The results indicate that the physical foaming WRAM feature better high
more » ... emperature stability, water stability and low temperature crack resistance compared to those of HRAM. With the increase in RAP contents, the high temperature stability of the physical foaming WRAM and HRAM rises notably but the water stability and low temperature crack resistance performance continues to drop.
doi:10.1051/e3sconf/202126102058 doaj:8a5267bdee3d43c387dcb983ac5a363a fatcat:6amdlk6mhrg4xcsrtj62vwbsaa