摘要
为了评价应力吸收层沥青混合料的抗剪性能,对应力吸收层沥青混合料进行了不同温度下抗压回弹模量试验和贯入试验的数值分析,分析了试件规格、压头大小、矿料级配等对试验结果的影响.根据数值分析和室内试验结果,验证了应力吸收层沥青混合料贯入试验的可行性,得到适宜的试验条件.分析表明:采用直径和高度均为100 mm的圆柱形静压试件和直径19 mm的压头进行贯入试验时,试验数据稳定,可有效区分应力吸收层矿料级配的优劣.研究成果为应力吸收层沥青混合料的质量评价提供了理论和试验依据.
For evaluating the shear property of stress absorbing layer asphalt mixture,compression rebound modulus test under different temperatures and numerical analysis were conducted.The influence of test conditions such as specimen size and head size and mineral aggregate gradation were discussed.And then the feasibility and appropriate test conditions of penetration test were proposed based on the numerical analysis and test results.The results show that： with 100mm diameter and 100mm height static pressure cylindrical specimens and 19mm diameter pressure head,the test data is stable and can effectively distinguish mineral aggregate gradation of stress absorbing layer.Conclusion provides theoretical and test basis for quality control of stress absorbing layer asphalt mixture.
出处
《郑州大学学报（工学版）》
CAS
北大核心
2012年第1期6-10,共5页
Journal of Zhengzhou University（Engineering Science）
基金
国家西部交通建设科技资助项目(200631800005)
关键词
应力吸收层
沥青混合料
贯入试验
数值分析
试验方法
stress absorbing layer
asphalt mixture
penetration test
numerical analysis
test method
