In recent years, extreme temperatures have occurred frequently in summer, which is a challenge to asphalt pavement and its surrounding environment. Phase change materials (PCMs) have unique energy storage characteristics, which provide a new idea for alleviating the high-temperature damage of pavement and reducing the environment temperature. In this paper, the silica composite phase change materials (SiO2-PCMs) were prepared by the sol–gel method, and SiO2-PCMs with better performance was applied to the asphalt mixture. The finite element hea...