压实程度对沥青混合料高温抗车辙性能的影响试验研究

摘要

设计了SUP12.5、AC13及SMA13等三种不同级配结构的典型沥青混合料,采用SGC旋转压实的方法,分别成型不同压实程度的沥青混合料试件.通过APA高温车辙试验,比较分析沥青混合料在不同压实程度下的车辙发展曲线所呈现的特征规律,讨论研究不同结构沥青混合料的高温抗车辙性能对压实度的敏感性差异.%Three typical gradation asphalt mixture were designed as SUP12. 5, AC 13 and SMA 13. The asphalt mixture specimens with different compaction degree were formed by SGC gyratory method, and the rule and features in rut development stages were analysed based on the APA test. The sensitivity differences of high-temperature rutting resistance performance on compaction degree among asphalt mixture of different structure are also discussed.