摘要
介绍了基于表面活性剂的温拌沥青混合料生产工艺.试验结果表明：浓缩液法温拌沥青玛蹄脂碎石（SMA）混合料可比相应的热拌沥青混合料降低拌和温度约30~40℃;进一步测试温拌沥青混合料的马歇尔稳定度、流值、浸水马歇尔稳定度、冻融劈裂、谢伦堡析漏、肯塔堡飞散以及车辙动稳定度等现行规范所列的试验项目后发现：不论是否改性,浓缩液法温拌SMA混合料都可达到相应热拌沥青混合料的性能,并且满足现行规范要求.另外,室内试验表明,浓缩液法改性温拌SMA-13混合料的疲劳寿命要比相应的热拌沥青混合料有所提高.
The production technique of evotherm warm mix asphalt was introduced.Testing results show that the mixing temperature of stone mastic asphalt（SMA） mixture could be decreased by 30-40 ℃ if evotherm-DAT warm mix asphalt technology is used.The following properties according to the current specification were tested including Marshall stability,flow value,retained Marshall stability,tensile strength ratio,Schellenberg binder drainage test,Cantabro test and rutting dynamic stability.The performance of evotherm-DAT SMA mixture with/without modified asphalt could reach the corresponding hot mix asphat（HMA）＇s performance,at the same time both could meet the requirement in current specification.In addition,compared with the corresponding HMA,the fatigue life of evotherm-DAT SMA mixture is improved.
出处
《建筑材料学报》
EI
CAS
CSCD
北大核心
2010年第1期32-35,共4页
Journal of Building Materials
基金
交通部西部交通建设科技资助项目(2006318223114)
