SMA路面物理力学性能的试验研究

摘要

Based on investigating SMA pavement development and application status at home and abroad, combining with the highway properties, organization characteristics and forming mechanism of SMA pavement, the paper carries out in-depth performance experiment research of SMA mixture including studying the impact of mineral grading upon high-temperature mixture and water stability and mechanical performance. Research results show that： SMA asphalt mixture can improve the performance of water stability, low-temperature cracking resistance ~ aging re- sistance, drainage capacity and anti-sliding ability of asphalt mixture, and can solve the contradictory between high-temperature stability and weak durability as well.%在调研分析国内外SMA路面发展应用现状的基础上，结合SMA路面的路用性能、组成特点和形成机理，对SMA混合料进行了深入的性能实验研究，内容主要包括：矿料级配对混合料高温及水稳定性的研究和力学性能的分析，研究认为：SMA沥青混合料对沥青混合料的水稳定性、低温抗裂性能、抗老化性能和路面排水能力及高速行车的抗滑能力都有明显提高，并解决了高温稳定性好、耐久性差的矛盾。