摘要
为了分析动稳定度与沥青混合料高温性能的关系,针对多种混合料类型进行了改进的车辙试验,分析了不同粒径、不同类型的沥青混合料动稳定度与车辙深度随加载次数的变化规律。研究结果表明,动稳定度指标基本能够反映同种类型混合料的抗车辙能力,但对不同类型的沥青混合料抗车辙能力的评价不足,建议采用荷载作用1万次的车辙深度作为混合料抵抗车辙变形能力的评价指标。
In order to analyze the relationsbi p between dynamic stability index and high temperature performance for asphalt mixture, the improved wheel tracking test is conducted to analyze the changing rules of dynamic stability and rut depth with loading times of asphalt mixture with different aggregate size and types. The results show that the dynamic stability index can evaluate the rutting resistance ability of the same mixture; however the index is not suitable for different mixtures. The rutting depth after 10 000 loading times is suggested as the evaluating index for the rutting deformation resistance ability of different types of mixture.
出处
《现代交通技术》
2017年第3期5-7,共3页
Modern Transportation Technology
基金
交通运输部应用基础研究项目(项目编号:2014319775130)
江苏省自然科学基金(项目编号:BK20151069)
江苏省自然科学基金(青年基金)项目(项目编号:BK20150074)
关键词
沥青混合料
动稳定度
高温性能
车辙深度
相关性
asphalt mixture
dynamic stability
high temperature performance
rutting depth
correlation
