Study on Performance of Composite Flame-retardant Asphalt Material in Tunel

International Conference on Manufacturing Technology, Materials and Chemical Engineering

机械制造;材料科学;化学工业

Zheng, Chuanfeng^1 ; Li, Ruiming^1 ; Lv, Dan^1

College of Construction Engineering, Jilin University, Changchun

130026, China^1

关键词: Asphalt materials;    High temperature stability;    Low temperature crack resistances;    Modified asphalts;    Pavement performance;    SBS-modified asphalt;    Segregation degrees;    Smoke suppression;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/392/2/022030/pdf
DOI  :  10.1088/1757-899X/392/2/022030

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In order to study the pavement performance of flame-retardant asphalt mixture, firstly, three kinds of compound flame-retardant modified asphalt, 3%, 6% and 9%, were prepared by high speed shearing method. The optimum dosage of composite flame retardant material was selected through segregation test, oxygen index test and smoke density test. Secondly, the road performance of asphalt mixture was analyzed by rutting test, low temperature splitting test and freezing thawing splitting test system. The results show that when the dosage of flame-retardant composites is 6%, the segregation degree of SBS modified asphalt mixture is the minimum, and it can effectively improve the flame retardant effect and smoke suppression effect of SBS modified asphalt. The high temperature stability and the low temperature crack resistance of the 6% composite flame retardant asphalt mixture have been improved, while water stability has not been much affected.