Electrothermal asphalt concrete doped with graphite and carbon fibers

The invention belongs to the technical field of bituminous pavements in road construction, and particularly relates to patent application of electrothermal asphalt concrete. The electrothermal asphaltconcrete is doped with a conductive phase material, and is electrified and heated so as to achieve the purposes of melting snow and deicing. Preparation raw materials of the electrothermal asphalt concrete consist of asphalt, aggregates, mineral powder and a conductive phase material, and the asphalt-aggregate ratio is 4.5%-6.0%; the conductive phase material consists of graphite and carbon fibers; in percentages by volume, in the electrothermal asphalt concrete, the mixing amount of the graphite is 0-30%; and in percentages by mass, the mixing amount of the carbon fibers is 0-0.3%. The graphite and the carbon fibers are compounded and blended into the asphalt concrete, and jointly act to improve the conductivity of the asphalt concrete; and by addition of composite conductive fillers, the anti-rutting performanc