摘要
典型钢桥面热拌铺装材料在施工过程中会对环境造成严重污染,而新型冷拌铺装材料RA树脂沥青混合料不含甲苯与二甲苯,对环境污染小,符合环保理念。依托芜湖长江公铁大桥公路桥钢桥面铺装工程,对RA-10树脂沥青混合料、GA-10浇筑式沥青混合料和SMA-13改性沥青混合料的路用性能展开研究。考虑到GA-10浇筑式沥青混合料的低温性能远超其他2种沥青混合料,因此研究中设定了5种试验温度,重点分析了RA-10树脂沥青混合料与SMA-13改性沥青混合料的抗裂性能。试验结果表明,RA-10树脂沥青混合料具有良好的高、低温与抗水损害性能。结合2种沥青混合料的弯曲劲度模量差异,提出芜湖长江公铁大桥公路桥采用双层RA-10树脂沥青混合料作为钢桥面铺装材料的设计方案。
Typical hot-mix pavement materials will serious pollute environmental during construction. Without toluene and xylene, the new cold-mix pavement material RA resin asphalt mixture has little environmental pollution and conforms to the environmental protection. In this paper, the road performance of RA-10 resin asphalt mixture,GA-10 pouring asphalt mixture and SMA-13 modified asphalt mixture are studied based on the steel deck pavement project of The Third Yangtze River Bridge in Wuhu(Wuhu Yangtze River Bridge);Considering the low temperature performance of GA-10 pouring asphalt mixture is better than that of the other two mixtures, five test temperatures are set and the crack resistance of RA-10 resin asphalt mixture and SMA-13 modified asphalt mixture are focused on. The results show that RA-10 resin asphalt mixture have good performance of high, low temperature and water damage resistance. Combined with the difference of bending stiffness modulus of the two mixtures, the double-layer RA-10 resin asphalt mixture is suggested to be pavement material for the highway bridge of The Third Yangtze River Highway Bridge in Wuhu.
作者
卓武极
南海军
Zhuo Wuji;Nan Haijun(Ningbo Tianyi Steel Deck Pavement Engineering Co.,Ltd.,Ningbo 315000,China)
出处
《市政技术》
2022年第7期74-78,95,共6页
Journal of Municipal Technology
关键词
钢桥面铺装
树脂沥青混合料
抗裂性能
树脂沥青
steel deck pavement
resin asphalt mixture
crack resistance
resin asphalt
