沥青混合料水稳定性评价方法的试验研究

Experiment and Research on Evaluation Method of Moisture Stability of Asphalt Mixture

在利用马歇尔残留稳定度来评价沥青混合料水稳定性的过程中,试件的浸水条件与路面实际的浸水条件明显不同,因此试验结果与使用效果存在很大的偏差。而用试件饱水煮沸后的劈裂强度来评价其抵抗水损害的能力,操作简便、作用效果明显、准确度高,是一种值得推广的方法。

There is great deviation between experimental result and practical application when Marshall residual stability is used to appraise the water stability of asphalt mixture due to differences between experimental soakage condition and practical serving condition. The splitting tensile strength of saturated asphalt mixture under the boilded condition studied in this work is proved to be more accurate in evaluating anti-water damage performance. In addition, it is easy to operate but has a better result which matches road performance, thus worth popularizing.