▎ 摘　　要

NOVELTY - Composite alkali-activated solid waste type inorganic adhesive comprises slag powder, slag micro-powder, steel slag powder, coal gangue fine powder, composite alkali activator, graphene oxide and water. The slag micro-powder is granulated blast furnace slag micro-powder having particle size of 25-45 mu m. The steel slag micro-powder is hot slag micro-powder, wind granulated slag micro-powder, molten iron desulfurization slag micro-powder, cast residue slag micro-powder, converter heat pouring slag micro-powder, converter drum slag micro-powder, electric furnace hot slag micro-powder and/or electric furnace drum slag micro-powder and has particle size of 25-45 mu m. The composite alkali activator is mixture of sodium silicate and sodium hydroxide in mass ratio of 1:2-2:1. The graphene oxide is Brodie's method graphene oxide, Staudemaier's method graphene oxide and/or Hummer's method graphene oxide. The water is de-ionized water. USE - The composite alkali-activated solid waste type inorganic adhesive is useful for inorganic rubber, slag, tailings slag, steel slag and coal gangue. ADVANTAGE - The composite alkali-activated solid waste type inorganic adhesive . The method is economical, improves the shearing force and high temperature resistance of the inorganic glue, realizes integration of high shear force and high resistance in inorganic rubber, enhances market competitiveness and application range, satisfies relevant policy requirements of energy conservation and is environmentally friendly. DETAILED DESCRIPTION - Composite alkali-activated solid waste type inorganic adhesive comprises slag powder, slag micro-powder, steel slag powder, coal gangue fine powder, composite alkali activator, graphene oxide and water. The slag micro-powder is granulated blast furnace slag micro-powder having particle size of 25-45 mu m. The steel slag micro-powder is hot slag micro-powder, wind granulated slag micro-powder, molten iron desulfurization slag micro-powder, cast residue slag micro-powder, converter heat pouring slag micro-powder, converter drum slag micro-powder, electric furnace hot slag micro-powder and/or electric furnace drum slag micro-powder and has particle size of 25-45 mu m. The composite alkali activator is mixture of sodium silicate and sodium hydroxide in mass ratio of 1:2-2:1, where sodium silicate is industrially pure and has modulus of 0.8-1.6 and sodium hydroxide is industrially pure. The graphene oxide is Brodie's method oxidized graphene, Staudemaier's method oxidized graphene and/or Hummer's method graphene oxide. The water is de-ionized water. An INDEPENDENT CLAIM is also included for preparing composite alkali-activated solid waste type inorganic adhesive, comprising (i) mixing slag powder and steel slag powder under room temperature condition by thermostatic magnetic stirrer at 400-800 rotations/minute for 1-3 hours to obtain slag-steel slag mixed fine powder; (ii) mixing slag fine powder, coal gangue fine powder and slag-steel slag mixed powder with constant temperature magnetic stirrer at room temperature and vacuum of 0.04-0.08 MPa by stirring at 400-800 rotations/minute for 2-4 hours to obtain mixed powder; (iii) mixing composite alkali activator, graphene oxide and water at room temperature using thermostatic magnetic stirrer at 400-800 rotations/minute for 1-3 hours to obtain mixed solution; and (iv) mixing mixed powder with mixed solution under room temperature condition using thermostatic magnetic stirrer at 800-1200 rotations/minute for 10-30 minutes.