温拌橡胶沥青OGFC混合料路用性能研究  

Pavement performance of warm mix open graded friction course mixtures with asphalt rubber

作　　者：郭乃胜[1] 荆华龙 吕胜[1] 赵颖华[1] 

机构地区：[1]大连海事大学道路与桥梁工程研究所,辽宁大连116026

出　　处：《大连海事大学学报》2015年第4期108-114,共7页Journal of Dalian Maritime University

基　　金：国家自然科学基金资助项目(51308084);大连市交通科技项目(2012-11);中央高校基本科研项目(3132014223)

摘　　要：为使温拌技术在开级配磨耗层(OGFC)混合料中得到更好的应用,选用橡胶沥青作为胶结料,以及EvothermDAT和S-I两种类型温拌剂,进行温拌橡胶沥青OGFC混合料路用性能研究.结果表明,温拌橡胶沥青OGFC混合料的各项配合比检验指标与热拌橡胶沥青OGFC混合料的相比,未产生明显差异,并且均能满足《规范》(JTG F40-2004)的技术要求;温拌剂的加入,降低了橡胶沥青OGFC混合料的水稳定性能,但是5次冻融循环后,与热拌橡胶沥青OGFC混合料相比,Evotherm-DAT温拌橡胶沥青OGFC混合料表现出较好的水稳定性.To potentially employ warm mix asphalt in open graded friction course（ OGFC） mixtures,the pavement performance of the OGFC mixture including two warm mix asphalt（ WMA） additives（ S-I,Evotherm-DAT） with asphalt rubber was evaluated through laboratory tests. Results show that the performance tests of warm mix OGFC mixtures with asphalt rubber exhibite a slight distinction as compared with that of hot mix OGFC mixtures with asphalt rubber,and both can meet the requirements of the technical specifications（ JTG F40- 2004）. The addition of the WMA additives into the OGFC mixtures with asphalt rubber decrease the moisture resistance. However,after five freeze-thaw cycles,the moisture resistance of Evotherm-DAT warm mix OGFC mixture with asphalt rubber is much better than hot mix OGFC mixtures with asphalt rubber.

关 键 词：温拌沥青 开级配磨耗层(OGFC) 橡胶沥青 路用性能 冻融 

分 类 号：U414[交通运输工程—道路与铁道工程]