Comprehensive evaluation method for fatigue resistance of asphalt mixture

The invention belongs to the technical field of road engineering, and relates to a comprehensive evaluation method for anti-fatigue performance of an asphalt mixture, which comprises the following steps of: performing corresponding echelon freeze-thaw cycle tests on each group of test pieces of various asphalt mixtures by setting freeze-thaw conditions to really simulate temperature change and freeze-thaw cycle states of seasonal frozen regions; analyzing the high-temperature stability damage degree, the low-temperature crack resistance damage degree and the water stability damage degree of each type of asphalt mixture after each gradient of freezing and thawing cycle, importing the damage degrees into Matlab software, generating a corresponding regression curve according to a Logistic model equation, obtaining a corresponding saturation factor and a growth rate factor, and calculating the damage degree of each type of asphalt mixture after each gradient of freezing and thawing cycle. The two factors are used