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文章针对我国北方寒冷的气候条件,根据目前国内常用矿料级配的组成及特点,借鉴SHRP和贝雷法初拟几种级配,对其低温性能进行试验研究和比较,并对各种级配混合料的路用性能进行对比分析。研究表明,采用贝雷法对连续密级配沥青混合料进行设计,可使矿料级配达到骨架密实结构的效果,具有良好的抗永久变形能力和抗水损害能力,推荐满足低温地区沥青路面性能要求的级配。
Aiming at the cold climatic conditions in the north of our country, according to the composition and characteristics of the commonly used ore gradation in our country, we study the low temperature performance of SHRP and Bere method, With the compound road performance with comparative analysis. The research shows that the design of continuous dense graded asphalt mixture by Bere’s method can make the grade of ore material reach the effect of solid structure of skeleton and has good anti-permanent deformation ability and water damage resistance. It is recommended to meet the requirements of asphalt pavement performance in low temperature area Required gradation.