Abstract:
This study aims to evaluate the effect of mineral fillers on bitumen ageing. Two different bitumens and
four mastics were investigated in the unaged and long-term aged states, based on different properties
(consistency, rheology, fatigue resistance and ductility). Mastics stiffened less due to ageing treatment
than bitumens, especially with granite filler. However, the results of the performance tests were not
definitive regarding the effect of the filler. Aged bitumen showed greater fatigue resistance and higher
specific energy of ductile fracture than unaged bitumen, whereas the mastics showed minor variations
in the specific energy of ductile fracture with ageing treatment, which is indicative of less ageing, but
the fatigue resistance decreased significantly in mastics with one of the bitumens.