热再生沥青混合料耐久性研究

Research on durability of hot-recycled asphalt mixture

通过STOA和LTOA试验模拟再生混合料不同使用阶段的老化,分析了再生沥青混合料的耐久性,试验结果表明:受再生剂扩散作用的影响,STOA的混合料性能变化幅度较小,LTOA后再生混合料性能变化幅度与普通混合料相当,总体耐久性能优于普通沥青混合料,能满足使用要求。

According to the aging of recycled mixtures at different stages by similating by STOA and LTOA experiments, the paper analyzes the durability of the recycled asphalt mixture, proves by the experimental results that the change range of the STOA mixture performance is little, the change range of the LTOA recycled mixture performance is similar with the common mixtures, and the general durability is better than the com- mon asphalt mixture by influenced by the diffusion effect of the recycling agent, so it can meet the demands of the application.