寒旱地区SMA沥青路面施工方法  

Research on Construction Method of SMA Asphalt Pavement in Cold and Arid Areas

作　　者：朱贵民 Zhu Guimin

机构地区：[1]甘肃建投路政建设科技有限公司,甘肃兰州730087

出　　处：《江苏建材》2024年第1期55-57,共3页Jiangsu Building Materials

摘　　要：针对寒旱地区沥青混凝土路面低温裂缝病害严重的特点,研究沥青路面低温抗裂性能。在SMA沥青混合料配合比设计中,通过确定改性沥青用量、纤维稳定剂掺量、矿粉用量采用高限,提高混合料中改性沥青马蹄脂数量,增强结合料拉伸性能,提高混合料的低温抗裂性能。In view of the serious characteristics of low-temperature crack disease of asphalt concrete pavement in cold and arid areas,the low-temperature crack resistance of asphalt pavement was studied.In the design of SMA asphalt mixture,the amount of modified asphalt horseshoe in the mixture was increased,the tensile properties of the binder were enhanced,and the low-temperature crack resistance of the mixture was improved by determining the high limit of the amount of modified asphalt,the amount of fiber stabilizer and the dosage of mineral powder.

关 键 词：寒旱地区 SMA沥青 路面施工 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]