矿料级配对表面层沥青混合料体积性质影响的试验研究

Test Research on Influence Pattern of Mineral Aggregate's Gradation on Volume Properties of the Exterior Layer Asphalt Mixture

对表面层沥青混合料体积性质矿料级配影响的规律进行了试验分析.在试验数据的基础上,分析了关键筛孔4.75,1.18 mm筛孔通过率对空隙率与粗骨架间隙率的影响规律、细料的划分标准、中间段矿料含量对体积参数的影响及矿粉用量对体积参数的影响.

Tests were carried out to analyze influence pattern of mineral aggregate＇s gradation on volume properties of the exterior layer asphalt mixture.On the basis of a large number of test data,influence rules of the key 4.75 mm and 1.18 mm sieve opening passing rate on percent air voids and percent voids in coarse mineral aggregate,the fine aggregate partition criterion,influence of the content of the mineral aggregate of middling size on the volume parameters and influence of the content of the mineral powder on the volume parameters were analyzed.