合成材料老化与应用2023，Vol.52Issue(6)：83-86,4.
聚乙烯对胶粉改性沥青及其混合料性能的影响研究
Study on the Effect of Polyethylene on the Performance of Rubber Powder Modified Asphalt and Its Mixture
李琨 1卞俊威 2韩鹏 1孙雪琦2
作者信息
- 1. 山东省调水工程运行维护中心,山东济南 250000
- 2. 山东省水利科学研究院,山东济南 250000
- 折叠
摘要
Abstract
In order to study the effect of polyethylene(PE)on the performance of rubber powder modified asphalt and its mixture road performance,the conventional performance of PE/rubber powder modified asphalt was analyzed through three major indicators,and PE dosage on the high-temperature and low-temperature rheological properties of rubber powder modified asphalt were analyzed through DSR and BBR tests.The high-temperature,low-temperature and water stability of PE/rubber powder modified asphalt mixture were studied using rutting test,low-temperature small beam bending test,immersion Marshall test,and freeze-thaw splitting test.The experimental results show that adding PE can increase the softening point and reduce the penetration,but it will reduce the ductility;Adding PE can improve the high-temperature rheological properties of rubber powder modified asphalt,but at the same time reduce the low-temperature rheological properties;PE can improve the high-temperature resistance to rutting,permanent deformation,water damage,and low-temperature crack resistance of rubber powder modified asphalt mixture.However,the low-temperature performance is contrary to the conclusions of asphalt ductility and BBR tests,and further research is needed.关键词
聚乙烯/脱硫胶粉/沥青性能/沥青混合料/路用性能Key words
polyethylene/desulfurization rubber powder/asphalt performance/asphalt mixture/road performance分类
交通工程引用本文复制引用
李琨,卞俊威,韩鹏,孙雪琦..聚乙烯对胶粉改性沥青及其混合料性能的影响研究[J].合成材料老化与应用,2023,52(6):83-86,4.
