In order to solve the problem of frost heave test of expansive soil, a set of equipment and test method for expansion and frost heave joint test was designed. During the testing process, the expansive soil was fully filled at room temperature and then the maximum deformation was achieved. The experimental results show that the device and method can be used to test frost heave of expansive soil.The test conditions are more similar to the frost heaving condition of expansive soil in nature, and the expansive ...