▎ 摘　　要

NOVELTY - The method involves chiseling the surface of the old concrete to clean up impurities such as laitance, gravel and dust on the surface. The concrete quick-hardening material is covered and microwave heating and curing is carried out for the concrete repair interface, the insulation material reaches the curing age is covered, and the repairing of the concrete surface is completed. The G/GO composed of following substances single-layer and multi-layer graphene, single-layer and multi-layer graphene oxide. The dispersant is sodium dodecylbenzenesulfonate, sodium dodecylbenzene sulfate, polyacrylic acid polymer, cetyltrimethylammonium bromide, gum arabic powder, methyl orange, sodium dodecyl sulfate, dipropylene glycol Methyl ether, diethylene glycol methyl ether, diethylene glycol ethyl ether, dipropylene glycol propyl ether. The early strength agent is chloride, sulfate, amorphous calcium aluminate, aluminate, sulfoaluminate, aluminum hydroxide colloidal carbonate, triethanolamine. USE - Method for repairing ultra-early strength and high bonding concrete of graphene or graphene oxide used in building. Can also be used for treating engineering disease of short skylight period in low temperature environment. ADVANTAGE - The method is suitable for emergency repair under low temperature and normal temperature environment, the super early strength properties of the fast-hardening materials are exerted through the thermal excitation of microwaves, the strengthening and toughening effect of G/GO on the repair interface is exerted, the bonding strength between the fast-hardening repair materials and the old concrete surface is improved, the agglomeration problem of directly adding G/GO to concrete is avoided, and the amount of G/GO is small and economical.