不同高模量剂沥青混合料路用性能对比分析

Comparative Analysis on Road Performance of Asphalt Mixture with Different High Modulus Agents

通过对比三种高模量剂与普通沥青混合料的试验结果,对比分析了高模量剂对沥青混合料路用性能的影响。高模量剂的添加会提高沥青混合料油石比数值,提高混合料毛体积密度和稳定度,但对矿料的间隙率、饱和度和流值影响不规律。高模量剂的添加能有效提高沥青混合料的动稳定度、残留稳定度及低温弯曲性能,对水稳定性的影响不明显。

By comparing the test results of three kinds of high modulus agent and ordinary asphalt mixture,the influence of high modulus agent on asphalt mixture pavement performance is analyzed.The addition of high modulus agent can improve asphalt aggregate ratio,gross bulk density and stability of asphalt mixture,but it has irregular effect on void ratio,saturation and flow value of mineral aggregate.The addition of high modulus agent can effectively improve the dynamic stability,residual stability and low temperature bending performance of asphalt mixture,but has no obvious effect on water stability.