It is very important to determine reasonably the maximum grain size, graded sizes and gradation of the coarse aggregate.
合理确定最大粒径、分级尺寸和级配十分重要。
The results show that best permanent deformation resistance can be got when continuous dense gradation, which has even arrangement of coarse and fine aggregate is adopted.
结果表明，采用粗细集料搭配均匀的连续密级配和适中的沥青用量可以获得最佳的抗永久变形能力。
Particle shape, percentage of flat-elongated particles and gradation of coarse aggregate can produce remarkable influence on crushing value.
研究发现粗集料的粒形、针片状颗粒含量和级配都会对其压碎值产生显著影响。
Experiment steps as following: at first, this paper has studied aggregate gradation to ensure which kind of coarse aggregates to contribute more for high temperature stability.
试验按照如下过程进行：首先对骨料级配进行探索，为了能确定哪一级粗集料对高温稳定性贡献较大。
The results showed that at normal temperature the splitting strength of the asphalt mixture increases when the aggregate gradation becomes coarse;
低温下，随着油石比增大，沥青混合料劈裂强度和劲度模量增大，破坏应变减小；随着空隙率的增大，沥青混合料劈裂强度减小；
The results showed that at normal temperature the splitting strength of the asphalt mixture increases when the aggregate gradation becomes coarse;
低温下，随着油石比增大，沥青混合料劈裂强度和劲度模量增大，破坏应变减小；随着空隙率的增大，沥青混合料劈裂强度减小；
应用推荐