摘要
鉴于集料颗粒间的摩阻性能直接影响沥青混合料的抗剪强度,运用相似实验原理系统分析了用直剪试验方法和设备评价集料颗粒间摩擦性能的可行性。并对符合沥青混合料AC—13、SMA—13级配的集料和钢球进行了直剪试验评价,解决了梁料剪切试验问题。
In view of the fact that the aggregate inter-particle friction could directly affect the shear strength of asphalt mixture, the feasibility utilizing direct shear test to evaluate the friction properties of aggregate was analyzed using analogue principle. Aggregates and steel balls with gradations conforming to AC-13 and SMA- 13 asphalt mixtures were evaluated with direct shear tests. Results of the study solved problems in aggregate shear testing.
出处
《中南公路工程》
2005年第3期1-4,共4页
Central South Highway Engineering
基金
国家自然科学基金资助项目(50278037)
关键词
沥青混合料
集料
直剪试验
抗剪强度
asphalt mixture
aggregate
direct shear test
shear strength
