新型木质素纤维及抗车辙剂对SMA沥青混合料的性能影响评价  

Evaluation on the Performance of SMA with New Fiber and Rutting Resistant Agent

作　　者：郭利杨 徐世法[2] 柴林林[2] 段文志 师航祺 

机构地区：[1]北京建筑大学土木与交通工程学院北京市城市交通基础设施建设工程技术中心,北京市100044 [2]北京建筑大学土木与交通工程学院首都世界城市顺畅交通协同创新中心,北京市100044 [3]北京市城市道路养护管理中心,北京市100000

出　　处：《公路》2017年第3期224-228,共5页Highway

摘　　要：为了比较新型木质素纤维和抗车辙剂对SMA沥青混合料路用性能的影响,在SMA-13中分别掺加普通木质素纤维、新型木质素纤维及普通木质素纤维+抗车辙剂,通过高温车辙、浸水马歇尔、冻融劈裂和低温小梁试验,对比评价以上3种SMA的路用性能。研究发现,与普通木质素纤维SMA相比,普通木质素纤维+抗车辙剂能够明显提高SMA沥青混合料的高温、低温与水稳定性,而新型木质素纤维能显著提高混合料的高温与低温性能,且提高幅度与普通木质素纤维+抗车辙剂接近。SMA-13is mixed with traditional fiber,traditional fiber and rutting resistant agent as well as new fiber respectively to investigate the influence on its performance.Rutting test,Marshall Immersion test,freeze-thaw splitting test and three point bending test are carried out to evaluate the performance of the three SMA mixtures It is found that addition of conventional fiber and rutting resistant can obviously improve the SMA performance in high temperature,low temperature and water stability compared with SMA with conventional fiber while new fiber can significantly improve the high temperature and low temperature performance of the mixture.

关 键 词：SMA 普通木质素纤维 新型木质素纤维 抗车辙剂 路用性能评价 

分 类 号：U414.01[交通运输工程—道路与铁道工程]