沥青混合料高温稳定性试验研究

Test Study on High Temperature Stability of Asphalt Mixture

目前沥青混合料高温稳定性的试验方法较多,且各个试验采用的评价指标和原理均有不同。为此,在不同试验方法取得结果的基础上,选用典型的室内车辙试验与力学试验方法进行沥青混合料高温稳定性试验,分析不同试验方法对不同沥青混合料各项试验指标的相关性。结果表明:APA车辙相关性排序位于其他试验方法之前,建议将APA作为评价沥青混合料高温稳定性的主要试验方法。

At present,there are many test methods for high temperature stability of asphalt mixture,and the evaluation indexes and principles used in the tests are different.Therefore,depending on the results of tests,the typical indoor wheel tracking test and mechanical test methods were used to test on high temperature stability of asphalt mixture,and then to analyze the relations between the test indicators of asphalt mixtures in different test methods.The result shows that the relation queue of APA rutting takes precedence over other test methods,so it is advised to take APA as the main method for evaluation for the high-temperature stability of asphalt mixture.