摘要
在介绍高模量沥青研究过程和原材料试验的基础上，进行了3种高模量沥青性能试验，同时进行高模量沥青混合料验证试验。结果表明，高模量沥青的针入度为20～50（0．1mm），软化点≥60℃，脆点≤-10℃，135℃动力粘度〈3Pa·S，PG等级为PG76—22；高模量沥青混合料高温抗车辙性能、动态模量、抗水损害性能、经济性能均强于SBS改性沥青和辽河AH-90#基质沥青混合料，证明了在路面中面层应用高模量沥青混合料是解决高温状态下路面产生车辙病害的有效途径。
Based on the research process of high module asphalt and material tests, high module asphalt performance tests and high module asphalt mixture verification test were carried out, The results from the tests show that （1） the PG grade of high module asphalt is PG 76-22, the penetration is 20 - 50, the softening point is not less than 60 ℃, the breaking point is not more than -10 ℃, the dynamic viscosity under the temperature of 135 ℃ is less than 3 Pa· s; （2） the performances of the high module asphalt include high temperature rutresistance,dynamic module, water damage-resistance and economic property are superior to those of SBS modified asphalt and Liaohe AH-90 asphalt. It was proved that the application of high module asphalt in the middle surface is a suitable solution for rut disease under the high temperature.
出处
《公路交通科技》
CAS
CSCD
北大核心
2008年第10期1-4,8,共5页
Journal of Highway and Transportation Research and Development
基金
交通部西部交通建设科技资助项目(200531877306)
关键词
道路工程
高模量沥青
调和法
车辙
动态模量
疲劳性能
road engineering
high module asphalt
consistent method
rut
dynamic modulus
fatigue performance
