coarse grading

基本解释

A new design method based on voidage of coarse aggregates for grading of permeable bituminous surface course is presented in this paper.
本文提出了一种根据主骨料空隙率设计透水性面层沥青混合料级配的新方法。
The effect of maximum diameter, grading distribution and crushing index of coarse aggregate on flexural strength of concrete is investigated through experiments.
本文研究了粗集料的最大粒径、级配和压碎指标值等对路面混凝土抗折强度的影响。
With percentage of voids in coarse aggregate of evaluation index, based on the theory of graded interference through grading fill test coarse aggregate gradation is determined;
以粗集料间隙率为评价指标，基于干涉级配理论通过逐级填充试验确定粗集料级配；