Heat conduction SMA (Styrene Maleic Anhydride) modified asphalt composition used on snow melting road and preparation method of heat conduction SMA modified asphalt composition

The invention discloses a heat conduction SMA (Styrene Maleic Anhydride) modified asphalt composition used on a snow melting road and a preparation method of the heat conduction SMA modified asphalt composition. The heat conduction SMA modified asphalt composition comprises SBS (Styrene Butadiene Styrene) modified asphalt and a stone material, wherein the stone material comprises mineral powder and aggregate, a part of the mineral powder is replaced by graphite, and the addition amount of the graphite accounts for 10-30% of the mass of the mineral powder. By optimizing a design method, an optimal proportion for the heat conduction SMA modified asphalt composition used on the snow melting road can be obtained, the heat conduction SMA modified asphalt composition can be prepared, the heat conduction property of the graphite can be utilized, the use amount of the mineral powder is reduced, the use amount of the asphalt is reasonably determined, various properties of a mixed asphalt material are ensured, and effe