摘要
为探究砂岩在高速公路沥青路面面层应用的可行性,该文对比分析砂岩与石灰岩集料的物理力学指标,从级配类型、沥青种类及集料岩性方面研究沥青混合料的高温性能、低温性能和水稳定性能.结果表明:洁净规整的砂岩集料合成的沥青混合料路用性能满足现行规范要求;同时沥青中外掺1%抗剥落剂的砂岩沥青混合料的综合路用性能有一定提高.
Abstract
In order to explore the feasibility of applying sandstone in the asphalt pavement of expressways,the physical and mechanical indexes of sandstone and limestone aggregate were compared,and the high temperature performance,low temperature performance,and water stability of asphalt mixture were studied from the aspects of grading type,asphalt type,and aggregate lithology.The results show that the road performance of asphalt mixture synthesized by clean and regular sandstone aggregate meets the requirements of current specifications.At the same time,the comprehensive road performance of sandstone asphalt mixture with 1%anti-stripping agent has been improved.
国家科技期刊平台
NSTL
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