摘要
分析了细集料棱角性常用评价方法的缺点,提出了一种新方法-CAR(Compacted Aggregate Resistance)法。该方法为单轴贯入试验,用贯入荷载表征细集料棱角性,试验结果表明,该方法能较好地评价细集料的形状和棱角性,CAR值与沥青混合料高温性能有较好的相关性。
Having analyzed the drawbacks of general evaluation methods of fine aggregate angularity, a new method-CAR （Compacted Aggregate Resistance） method, is presented in this paper. CAR is a uniaxial penetration test method, with which the fine aggregate angularity can be evaluated. Experimental re- sults prove that this new method can efficiently evaluate fine aggregate angularity, CAR test results correspond with high temperature stability of asphalt mixture.
出处
《公路》
北大核心
2010年第6期174-176,共3页
Highway
关键词
细集料
棱角性
CAR
评价方法
单轴贯入试验
fine aggregate
angularity CAR
evaluation method
uniaxial penetration test
