Double-phase-change self-temperature-regulating material for asphalt pavement and use method

The invention discloses a double-phase-change self-temperature-regulating material for an asphalt pavement and a use method. The composite double-phase-change material is prepared by compounding the following raw materials in parts by weight. 5%-20% of a high-temperature composite phase change material; 5%-20% of a low-temperature composite phase change material; the high-temperature composite phase-change material and the low-temperature composite phase-change material are composite materials formed by compounding polyether compounds and carbon materials, the mass of carbon material carriers in the two composite phase-change materials accounts for 6%-10% of the total mass of the composite materials, and the colors of the two composite phase-change materials are black. The required raw materials have the characteristics of low carbon, environment friendliness, wide source, low market price and the like, the preparation process of the composite double-phase-change material is simple, the experimental condition