▎ 摘　　要

NOVELTY - High performance graphene modified asphalt comprises 70 matrix asphalt, graphene and polyvinylpyrrolidone, where the mass of graphene is 12-14% of the mass of 70 matrix asphalt, and the mass of polyvinylpyrrolidone is 0.8-1.0% of the mass of graphene. USE - High performance graphene modified asphalt. ADVANTAGE - The high performance graphene modified asphalt is suitable for industrial production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing high-performance graphene modified asphalt, which involves: (A) adding anhydrous ethanol to polyvinylpyrrolidone to completely dissolve polyvinylpyrrolidone to obtain a mixed solution; (B) performing a 1.5 hour ultrasonic vibration treatment on the mixed solution in a sealed state; (C) adding the mixed solution to 70 (D) matrix asphalt to obtain a mixture, placing the mixture in an environment of 70 degrees C, and baking for 6-8 hours; and (E) shearing the mixture to obtain high performance graphene modified asphalt, where the shearing rate is 3800-4000 revolutions per minute, temperature is 110 degrees C for 55-60 minutes.