▎ 摘　　要

NOVELTY - Method for preparing nano graphene oxide modified asphalt mixed material and evaluating electric heating performance comprises (i) determining the fine-grained asphalt mixed material grade and the best oil-stone ratio, and using nano graphene oxide to replace part of mineral powder, (ii) cutting the copper sheet into a round copper sheet with the Marshall test piece diameter testing the resistance of two ends of copper sheet electrode through a universal meter to measure the resistivity of the Marshall test piece, (iii) welding lead on the copper electrode on two ends of the test piece, recording the temperature of the test piece, (iv) selecting the test piece with heating efficiency, measuring the deformation in the horizontal direction of the test piece, and (v) determining the best doping amount of nano graphene oxide, preparing nano graphene oxide modified asphalt mixed material, and improving the electric heating performance and mechanical property of the asphalt mixed material. USE - The method is useful for preparing nano graphene oxide modified asphalt mixed material and evaluating electric heating performance. ADVANTAGE - The method is good for realize the development of asphalt pavement multi-functional application. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of a linear displacement sensor.