Aged Asphalt Binder

Realistic coupled aging

Reproduces real pavement aging by coupling thermal oxidation, UV radiation, and water, revealing comprehensive effects on rheology, adhesion, and environment.

Yang, Bing · Li, Hui · Yang, Sun · Zhang, Hengji · Liu, Jiawen · Yang, Jie · Zhang, Xue

Journal of Cleaner Production 2023

Advantages

Higher modulus and lower phase angle after aging

More oxygenated chemicals and asphaltenes after aging

Thermal oxidation and UV radiation had the most significant aging acceleration

Water led to BBS failure mode changing from cohesion to adhesion failure