▎ 摘　　要

NOVELTY - Additive comprises component A and component B at weight ratio of 3:1. The raw materials of component A are 44.3-44.5 wt.% epoxy resin, 16.5-17.0 wt.% filler, 5-7 wt.% ethanol, 5-7 wt.% liquid nitrile rubber, 5.8-6.4 wt.% graphene, 8.2-8.6 wt.% polyglycidyl methacrylate and 11-13 wt.% resorcinol bisglycidyl ether. The raw materials of component B are 37-38 wt.% low molecular weight polyamide resin, 7.5-8.5 wt.% silicone coupling agent, 44.5-45 wt.% inorganic powder and 9.0-9.5 wt.% antimony trioxide. USE - The additive is used for fracture integrity of weakly weathered limestone (claimed). ADVANTAGE - The product can reinforce the loose rock mass and improve integrity of rock; effectively prevent slipping and collapse of dangerous rocks; has compressive strength of more than 1-2 times of compressive strength of fresh limestone, low cost, convenient construction and preparation process; and does not produce organic waste gas and toxic gas.