▎ 摘　　要

NOVELTY - A graphene-doped resin concrete comprises a main agent, a curing agent, suspended dense gradation aggregates, and graphene powder. The main agent includes 50-80 pts. wt. epoxy resin, 10-30 pts. wt. epoxy-terminated urethane prepolymer, 5-15 pts. wt. epoxy-terminated diluent, and 1-3 pts. wt. coupling agent. The mass ratio of the resin material to the aggregates obtained by reacting main agent and curing agent is 100:(5-10). The mass ratio of the resin material to the graphene powder is 100:(0.1-1). USE - The graphene-doped resin concrete is useful for paving steel bridge surface. ADVANTAGE - The graphene-doped resin concrete uses graphene powder, which builds a three-dimensional thermal network in the resin concrete, improves the thermal conductivity of resin concrete, and enhances the curing speed of resin concrete under the action of pulse electromagnetic waves. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) preparation of the graphene-doped resin concrete, which involves (S1) stirring epoxy resin, epoxy-terminated urethane prepolymer, epoxy-terminated diluent and coupling agent at 40-60 degrees C for 1-2 hours to obtain the main agent, (S2) mixing amine curing agent and amino-terminated polyether diluent for 0.5-1 hour to obtain the curing agent, (S3) mixing and stirring the main agent and curing agent for 5 minutes to obtain the resin material, and (S4) stirring the resin material and graphene powder for 5-10 minutes to obtain a graphene-doped resin material, adding the suspended dense grading aggregates, and mixing for 5-10 minutes; and (2) fast curing of the graphene-doped resin concrete, which involves (A1) closing the traffic, milling, excavating, sandblasting and removing rust on the original pavement surface defects, pouring the graphene-doped resin concrete into the steel bridge surface curing position, rolling, and leveling, and (A2) curing by using a pulsed electromagnetic wave rapid curing device, cooling the resin concrete to less than 60 degrees C, and opening the traffic.