▎ 摘　　要

NOVELTY - Graphene-based self-melting snow-melting pavement structure with shape memory function comprises heat insulation that is sequentially laid on the road surface from bottom to top layer (1), graphene-based conductive asphalt layer (2), shape memory polymer layer (3), insulating asphalt layer (4) and surface layer (5), multiple electrodes (6) are arranged at intervals in the graphene-based conductive pitch layer. The described thermal insulation layer, graphene-based conductive asphalt layer, shape memory polymer layer and insulating asphalt layer are respectively passed through the emulsified asphalt adhesive at the interface between the two adjacent layers bonding, the surface layer is laid on the insulating asphalt layer. USE - Graphene-based self-melting snow-melting pavement structure with shape memory function. ADVANTAGE - The pavement structure solve the problem that the existing graphene heating film has strict application environment, short service life, improve the existing road surface or even improve the existing road surface and also has short service life and high cost. DETAILED DESCRIPTION - Graphene-based self-melting snow-melting pavement structure with shape memory function comprises heat insulation that is sequentially laid on the road surface from bottom to top layer (1), graphene-based conductive asphalt layer (2), shape memory polymer layer (3), insulating asphalt layer (4) and surface layer (5), multiple electrodes (6) are arranged at intervals in the graphene-based conductive pitch layer. The described thermal insulation layer, graphene-based conductive asphalt layer, shape memory polymer layer and insulating asphalt layer are respectively passed through the emulsified asphalt adhesive at the interface between the two adjacent layers bonding, the surface layer is laid on the insulating asphalt layer. The graphene-based conductive asphalt layer consists of 5-10 pts. wt. modified asphalt, 70-120 pts. wt. aggregate, 15-20 pts. wt. mineral powder, 5-15 wt.% conductive shape memory composite material, 0.8-3 wt.% modified oxidation graphene, 10-20 wt.% carbon fiber composition, where the modified asphalt is prepared by adding titanium carbide and silane coupling agent to the ethanol solution with a mass fraction of 20-40%, then stirring and reacting for 30-60 minutes, and then drying to remove and dissolve to obtain modified titanium carbide, heating and melting the asphalt at a temperature of 140-160 degrees C, then adding the modified titanium carbide and dispersant obtained, and then placing into a high-speed shearing machine at a shear rate of 1000-2000 r/minutes, forward shearing for 20-30 minutes, and then reverse shearing at a shear rate of 1000-2000 r/minutes for 20-30 minutes to obtain modified asphalt. The dispersant is bis(octylphenol polyoxyethylene ether) phosphate ester, the mass ratio of titanium carbide to the asphalt is (3-8):100. The mass ratio of the silane coupling agent to the pitch is (0.5-1):100. The mass ratio of dispersant to asphalt is (0.2-0.5):100. The volume ratio of the ethanol solution to the mass ratio of the pitch is (5mL-10mL):100g. The silane coupling agent is KH-550 or KH-560, the modified graphene oxide is prepared by adding graphene oxide and tannic acid to deionized water, and then ultrasonically dispersing to obtain a graphene oxide/tannic acid solution. The concentration of graphene oxide in the graphene oxide/tannic acid solution is 3-5 mg/L, and the concentration of tannic acid is 6-10 mg/L. The power of ultrasonic dispersion is 200-400 W, and the time of ultrasonic dispersion is 0.5-1 hours. The graphene oxide/tannic acid solution is reacted for 8-12 hours at a reaction temperature of 90-95 degrees C and a stirring speed of 500-1000 r/minutes to obtain product. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a structure. Bottom to top layer (1) Graphene-based conductive asphalt layer (2) Shape memory polymer layer (3) Insulating asphalt layer (4) Surface layer (5) Multiple electrodes (6)