▎ 摘　　要

NOVELTY - A fast-curing modified unsaturated resin, comprises 40-80 pts. wt. unsaturated resin, 20-60 pts. wt. modified unsaturated resin, 10-25 pts. wt. diluent, 1-10 pts. wt. graphene powder, 5-10 pts. wt. silsesquioxane, 1-10 pts. wt. Dopa, 0.5-3 pts. wt. accelerator and 0.5-6 pts. wt. curing agent. USE - Fast-curing modified unsaturated resin for steel bridge deck maintenance. ADVANTAGE - The modified unsaturated resin has low viscosity, high strength, excellent toughness, excellent weather resistance, long service life, and fast curing speed. The resin mixture realizes cold mixing and self-leveling and no rolling, thus improving construction efficiency, and reducing construction difficulty and cost. The construction energy consumption is saved, and the curing time is short. The transportation pressure is alleviated and the cost of repeated maintenance of steel bridge decks is saved. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation method of resin, which involves (S1) adding unsaturated resin, modified unsaturated resin, graphene powder, silsesquioxane, dopa and accelerator to diluent in sequence, and dispersing at high speed for 2 hours to obtain the preliminary product and (S2) adding curing agent to the preliminary product prepared by step (S1) and stirring for 2-3 minutes.