缓黏型沥青混合料应用技术研究  

A Study on Applied Technology on Slow-Viscous Asphalt Mixture

作　　者：李炜光[1,2] 吕振北[1] 颜录科[1,2] 韩之栋 范文东[4] 荣丽娟[1] 

机构地区：[1]长安大学材料科学与工程学院,西安市710061 [2]交通铺面材料教育部工程中心,西安市710064 [3]辽宁省高速公路管理局辽阳管理处,辽阳市111000 [4]长安大学公路学院,西安市710064

出　　处：《公路》2012年第9期173-177,共5页Highway

基　　金：新世纪教育部优秀人才计划;项目编号NCET-08-0750;吉林省交通厅交通科技项目;项目编号2009-1-6

摘　　要：降低沥青混合料拌和与压实温度,延长混合料施工时间,具有重要的经济和社会效益。缓黏型沥青混合料是一种具有高温降黏,中温缓黏和低温增黏特性的绿色经济高效路用材料,不仅能实现温拌技术的降温效果,而且低温增黏又能保证其路用性能不低于热拌路面,同时缓黏技术可以延长混合料施工时间。对掺加缓黏剂(FH-3)沥青混合料降温效果和路用性能试验与基质沥青混合料对比研究,结果显示:拌和温度降低18.1℃,降温效果明显,同时所测试路用性能都符合规范要求,且低温、水稳和抗疲劳性能提高。Lowering asphalt mixing and compaction temperatures, extending the construction time have important economic and social benefits. Slow viscous asphalt mixture is a kind of cost-effective green road material with the properties of high-temperature viscosity, viscosity-temperature slow and low tempe- rature tackifing. It not only can achieve the cooling effect of warm mixing temperature technology but also keep the pavement performance not less than the hot mixing pavement with the guarantee of low tempera- ture tackifing property,meanwhile to extend the construction time with the slow stick technology. Based on the comparative study of the cooling effect and the road performance between the mixed slow-viscous a- gent （ FH-3 ） asphalt mixture and matrix asphalt mixture,the results show that： decreasing 18. 1 degrees celsius of the mixture temperature, the cooling effect is obvious, meanwhile, the anti-fatigue performance, low temperature and water stability performance are improved, however, high temperature performance can comply with regulatory requirements.

关 键 词：缓黏型沥青混合料 降温效果 路用性能 

分 类 号：U414.701[交通运输工程—道路与铁道工程]