Pavement cooling material

The invention discloses a pavement cooling material. The material includes coal ash, clay, fatty acid salt, silica aerogel, alum, leucite, rare earth oxide powder, sodium methyl siliconate, polyvinylalcohol and a dispersing agent; and the raw materials of the dispersing agent include kerosene, diatomite, microcrystalline paraffin, barium stearate and hexenyl bis stearamide. Matrix asphalt can have characteristics of heat preservation and heat insulation, and have characteristics of lowering the heat absorption capability of pavement; a bituminous mixture can be prepared by mixing the materialand reasonable grading aggregate, so that the heat absorption capability of the pavement can be lowered in summer, heat transmitting downward can be reduced, pavement temperature can be lowered up to10 DEG C in hot summer, pavement heat stability diseases can be reduced, urban heat island effect can be alleviated, the pavement temperature can be kept so as to reduce the dissipation of heat in winter, and the purpose of lo