Method for judging optimal length of fiber in chopped fiber modified EA-10 epoxy asphalt mixture

The invention discloses a method for judging the optimal length of fibers in a chopped fiber modified EA-10 epoxy asphalt mixture, which comprises the following steps of: designing a mix proportion of the EA-10 epoxy asphalt mixture, calculating grading parameters of the EA-10 chopped fiber epoxy asphalt mixture, and constructing a discrete element model according to the grading parameters; carrying out binarization processing on the model, and extracting mesoscopic characteristic parameters of the EA-10 epoxy asphalt mixture; finally, statistical processing is conducted, and the optimal length of the chopped fibers in the chopped fiber modified EA-10 epoxy asphalt mixture is judged according to the microscomic characteristic parameters. According to the method, the optimal length of the fiber in the chopped fiber modified EA-10 epoxy asphalt mixture can be effectively judged, the problem that a test result for determining the optimal length of the fiber by a traditional macroscopic indoor test method is rela