低滚动阻力沥青路面设计研究

Design Study of Asphalt Pavement with Low Rolling Resistance

低滚动阻力沥青路面设计是通过对沥青改性探求实现降低道路滚动阻力的路面设计。通过对低滚阻沥青的微观特征进行观察,探究低滚阻沥青的改性机理;设计路用性能试验确保低滚阻沥青混合料的路用性能指标达到规范要求;基于低滚阻沥青使用场景与特点,通过动态模量试验与有限元仿真模型的建立对低滚阻沥青路面动态加载环境下的特性进行评价,为低滚阻沥青在道路设计上提供了新的参考思路。

The asphalt pavement design with low rolling resistance is a pavement design that reduces the rolling resistance of the road through the exploration of asphalt modification.By observing the microscopic characteristics of low-rolling asphalt,the modification mechanism of low-rolling asphalt was explored.The road performance test is designed to ensure that the road performance index of the low rolling resistance asphalt mixture meets the requirements of the specification;Based on the use scenarios and characteristics of low-rolling resistance asphalt,the characteristics of low-rolling resistance asphalt pavement under dynamic loading environment are evaluated through dynamic modulus test and finite element simulation model,which provides a new reference idea for low-rolling resistance asphalt in road design.