▎ 摘　　要

NOVELTY - The method involves using Fourier transform infrared spectrum test semi-cylindrical test piece crack repairing front and back asphalt saturated hydrocarbon and aromatic hydrocarbon relative content ratio as a self-repairing index to evaluate influence of a chemical component on self-repairing ability. Ratio of relative content of methylene and methyl is used as index of molecular diffusion speed to evaluate self-repairing efficiency. A heating mode and self-repairing effect are comprehensively compared. Best doping amount and optimal self-repairing heating mode of nano graphene oxide are determined. The self-repairing performance of the asphalt mixture is improved. USE - Nano-graphene oxide modified asphalt mixed material self-repairing performance evaluation method. ADVANTAGE - The method can improve the asphalt pavement self-repairing performance, save the pavement maintenance manpower and material resources, improve the service life of the asphalt pavement, and promote the asphalt pavement sustainable development construction.