胶粉与SBS改性沥青混合料的比较研究

Comparative Study on Crumb Rubber Asphalt Concrete and SBS Asphalt Concrete

为比较AC—13胶粉改性沥青混合料和SBS改性沥青混合料的性能差异,通过车辙、小梁弯曲、劈裂、冻融劈裂和浸水马歇尔等室内试验分别对两者的高低温性能、疲劳性能和水稳性能进行了对比。室内试验结果和试验路结果均表明,胶粉改性沥青混合料具有更好的高低温性能、抗疲劳性能和抗水损害性能,能更好地适用于公路路面铺筑,可广泛推广应用。

In order to compare performances differences between crumb rubber asphah concrete and SBS asphalt concrete, such indoor tests as wheel rutting, girder bending, splitting, freezing-thawing splitting and Marshall immersion test are carried on for comparing their high-temperature performance, low-temperature performance, fatigue performance and water-stable performance. The results of indoor tests and practical testing roads indicate that crumb rubber asphalt concrete has better high-temperature performance, low-temperature perfo-rmance, fatigue resistance and water-stable performance, which is suitable for highway pavement and can be widely popularized.