Better high-temperature performance
Tailoring aggregate roughness and asphalt film thickness improves interfacial fatigue life and high-temperature stability.
Gong, Xiangbing · Hongshuai, Gu · Han, Yan · Xingyao, Huang · Zhou, Hongyu · Jintao, Ma
Construction and Building Materials 2025
Reducing asphalt film thickness increases the fatigue life of the aggregate-asphalt interface, providing a direct lever for extending pavement service life through structural design.
At high temperatures, a smoother aggregate surface combined with a thicker asphalt film yields better interfacial contact, enabling optimized material matching for hot climates.