沥青混凝土表面抗滑与渗水性能的试验研究

Experimental study of the anti-skid property and water permeability of the asphalt-concrete pavement

通过大量室内试验研究了矿料级配、沥青用量、粗集料磨耗值等因素对沥青混凝土表面抗滑及渗水性能的影响。进行了不同级配、不同沥青用量、不同粗集料的沥青混凝土的表面构造深度、摆值和渗水系数的室内试验。分析了沥青混凝土的表面抗滑与渗水性能的影响因素,并找出了抗滑性能与渗水性的关系,提出了沥青混合料设计的基本要求。研究表明,选择质地坚硬、磨耗值小的粗集料配置的沥青混合料,可以提高沥青混合料的表面抗滑性能;综合考虑沥青混合料的耐久性和表面抗滑性能,选择合理的沥青用量。

The effects of aggregate gradation, asphalt content and coarse aggregate abrasiveness on the asphaltconcrete pavement skid resistance condition and water permeability are investigated by testing. The relationship of skid resistance and water permeability is analyzed. The requirements in the design of asphalt mixtures considering skid resistance and water permeability is put forward. The study shows that the pavement antiskid performance of the asphalt mixtures with solid coarse aggregate is very good,and it is necessary to deal with the relationship of the pavement antiskid resistance and water permeability.