stress relaxation test;  asphalt mixture;  viscoelasticity;  Generalized Maxwell model;  Cumulative dissipated energy

In order to determine the viscoelastic parameters of asphalt mixture, stress relaxation test was carried out at 10,5,0,-5,-15,-20,-25,-30 °C. The analysis points out that the fatigue failure of asphalt mixture can be analyzed with the cumulative dissipative energy, and there is a unique relationship between the cumulative dissipative energy and the fatigue life, and other factors such as test method, loading frequency, loading mode, temperature, etc. have little effect on it. Finally, the solution method of cumulative dissipated energy is briefly described.