Asphalt mixture simulation fatigue test method under control strain loading mode

The invention discloses an asphalt mixture simulation fatigue test method under a control strain loading mode; the test method comprises the steps: obtaining asphalt mortar fatigue failure conditionsby carrying out a fatigue test of asphalt mortar, carrying out fatigue test to output a fatigue characterization variable by generating an asphalt mixture simulation test specimen, and comparing the output characterization variable with the fatigue failure conditions, so as to obtain asphalt mixture fatigue failure related parameters. The method can well simulate the stress state of the asphalt mixture during the four-point bending fatigue test; based on the obtained asphalt mortar fatigue performance attenuation law, the method can arbitrarily change the content of coarse aggregates to achieve simulation of the asphalt mixture fatigue process without actual asphalt mixture fatigue tests, solves the problems that an asphalt mixture fatigue test cycle is long, the discreteness of experimental results is large and the test cost is high, and is of great significance for professional research on road engineering.