高黏改性排水沥青混合料路用性能研究

排水沥青路面因具有大空隙、耐磨抗滑、雨天行车无水雾、低噪音等优点,目前正处于广泛的推广应用阶段。为进一步提高排水沥青路面的路用性能,本文通过向SBS改性沥青中掺加6%、8%、10%和12%四种不同比例的HVA高黏改性剂制备复合改性沥青,对复合改性前、后沥青进行试验研究,并对确定最佳掺量的复合改性排水沥青混合料进行高温稳定性、低温性能、水稳定性试验研究。试验结果表明,复合改性排水沥青混合料在高温性能、低温性能、水稳定性等方面均好于SBS改性排水沥青混合料。

Research on Road Performance of High Viscosity Modified Pervious Asphalt Mixture

Drainage asphalt pavement is currently in a wide range of popularization and application due to its large gap, wear and anti-slip,rainless fog and low noise.In order to further improve the road performance of the drainage asphalt pavement, this paper prepares the composite modified asphalt by adding different proportions of HVA high viscosity modifier to the SBS modified asphalt,and tests the asphalt before and after the composite modification.The optimum modified amount of composite modified drainage asphalt mixture was determined by high temperature stability,low temperature performance and water stability.The test results show that the composite modified drainage asphalt mixture of the recommended scheme is better than the SBS modified drainage asphalt mixture in high temperature performance,low temperature performance and water stability.