橡胶沥青混合料应力吸收层抗裂性能分析

Analysis of anti-crack performance of stress absorbing layer of rubber asphalt mixture

为了准确确定橡胶沥青混合料应力吸收层的抗裂性能,对不同温度、级配和油石比的混合料开展DTT试验,分析试验结果确定混合料设计参数。分析DTT试验结果,得出最理想的试验温度为0℃,最佳油石比为9.5%和最佳级配。

In order to accurately determine the crack resistance of the stress-absorbing layer of rubber asphalt mixture,DTT tests were carried out on mixtures of different temperatures,gradations and oil-stone ratios,and the test results were analyzed to determine the design parameters of the mixture.Analyzing the results of the DTT test,it is concluded that the best test temperature is 0℃,the best oil-stone ratio is 9.5%and the best gradation.