温拌再生沥青混合料压实特性

Characterization of Warm Mix Reclaimed Asphalt Pavement Compaction

通过对AC-13温拌再生沥青混合料在不同成型温度下的马歇尔试验,模拟沥青路面在不同压实温度下的碾压施工,分析压实温度对温拌再生沥青混合料空隙率、矿料间隙率、稳定度、流值等体积参数变化的影响。结果表明,随着压实温度的升高,沥青混合料空隙率、矿料间隙率以及流值不断降低而沥青饱和度和稳定度不断增大。

Based on Marshall experiments of AC-13 warm mix reclaimed asphalt mixture under different mixing temperature,the construction of asphalt pavement under different compaction temperature is simulated,and the influences of compaction temperature on volumetric parameters of warm mix reclaimed asphalt mixture are analyzed,such as air voids,voids in mineral aggregate,stability,flow value,etc.The results show that with compaction temperature＇s increasing,air voids,voids in mineral aggregate and flow value are decreasing,while saturation of asphalt and stability are increasing.The research on compaction temperature has a guiding significance to the field construction of warm mix reclaimed asphalt mixture.