Differences in Fatigue Behavior among the Gussasphalt, SMA and AC

Autor: Wu, Wen Jun, He, Zhao Yi, Hao, Zeng Heng, Wang, Min
Zdroj: Advanced Materials Research; August 2013, Vol. 723 Issue: 1 p276-282, 7p
Abstrakt: Differences in fatigue behavior among Gussasphalt, SMA and AC under different strain levels were studied by means of the four-point flexural fatigue test under strain-controlled mode. The results showed: Compared with SMA and AC, GA is qualified with higher bending stiffness modulus and excellent in load dispersibility and bending deflection resistance, thus its deformation resistance and stress dispersibility are more excellent in all conditions. The analyses based on viscoelasticity showed: Initial and fatigued lag angles of Gussasphalt are bigger than SMA and AC, and the viscoelasticity is more obvious when loading. Besides, the bigger lag angles, the better fatigue resistance.
Databáze: Supplemental Index