Study of asphalt performance impact with ultraviolet aging

2017 2nd International Seminar on Advances in Materials Science and Engineering

Luo, Min^1,2

China Aiport Construction Group Corporation of CACC, RandD Center, Beijing

100101, China^1

Beijing Super-Creative Technology Co. LTD., Beijing

100621, China^2

关键词: Asphalt performance;    Dynamic shear rheometer;    Fatigue performance;    High temperature performance;    Low temperature performance;    SBS-modified asphalt;    Temperature sensitivity;    Ultra-violet light;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/231/1/012107/pdf
DOI  :  10.1088/1757-899X/231/1/012107

来源: IOP

【 摘 要 】

To solve the problem of strong ultraviolet radiation on the road asphalt aging, ultraviolet aging environment box analog wild aging condition to be used to experiment, Through dynamic shear rheometer respectively to study the effect of SBS modified asphalt and asphalt matrix high temperature, low temperature and fatigue performance with the aging time to change. The results show that SBS modified asphalt can produce serious aging under strong ultraviolet light, the Main aspects is fatigue performance and low temperature performance greatly reduced, high temperature performance is further improved, They have a closer relationship with aging time; At the same time, along with the test temperature, aging time on the influence of G∗/sinδ, G∗sinδ of amplitude decreases. That ultraviolet on SBS modified asphalt aging has temperature sensitivity. The research conclusion can choose the light aging resistance of airport pavement asphalt to provide good technical support.