摘要
针对4种不同沥青,测试其不同的高温评价指标,并分析这些指标与沥青混合料高温稳定性的相关程度,以判断这些指标的适用性。基于样本研究,得出如下结论:等抗车辙因子临界温度和车辙因子与动稳定度相关程度较高;传统软化点和当量软化点不能很好反映沥青的流变特性,与动稳定度的相关程度较低。
This paper tests different high -temperature evaluation indices based on 4 different types of asphalt and analyzes the degree of correlation of these indices with high - temperature performance of asphalt mixture to judge the applicability of these indices. Based on sample research, the paper draws the following conclusions：the critical temperature of rutting resistance factors shows high degree of correlation with dynamic stability; but traditional softening point and equivalent softening point cannot well reflect rheological properties of asphalt and exhibit lower degree of correlation with dynamic stability.
出处
《公路交通技术》
2015年第4期26-31,共6页
Technology of Highway and Transport
关键词
道路工程
沥青结合料
软化点
车辙因子
动稳定度
road engineering
asphalt binder
softening point
rutting factor
dynamic stability
