▎ 摘　　要

NOVELTY - Grouting material comprises gel material, solid waste material, fly ash, polyvinyl alcohol, graphene oxide, slow-release super-plasticizer and water. USE - The grouting material is useful for coastal structure connecting piece anti-corrosion field comprising offshore building, bridge tunnel, wind energy nuclear power station, drilling oil well platform, and harbor wharf. ADVANTAGE - The grouting material: reduces the incompatibility between the expansive compound cement and the admixture, and the rapid loss of slump; has improved rheology, durability of freeze-thaw resistance, flexibility and waterproof performance, and excellent corrosion resistance; and can quickly connects the grouting sleeve system of the coastal assembling structure; counteracts the thermal shrinkage stress generated when the expansion composite cement is quickly hydrated realizing the reduction efficiency. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing the grouting material, comprising mixing the graphene oxide aqueous dispersion, oxidant, and polyvinyl alcohol aqueous solution to polymerize and intercalate in-situ to form a prepolymerized body liquid, mixing fly ash, slow-release super-plasticizer or water reducing agent, and catalyst with the prepolymer liquid, and performing ultrasonic dispersion under heating conditions to form GO-PVAH doped FA, adding the remaining water reducing agent and tartaric acid to the GO-PVAH-FA and mixing uniformly to form a GO-PVAH doped FA suspension, mixing and grinding the gel material with solid waste materials to form a dry mixture, uniformly mixing the GO-PVAH doped FA suspension with the dry blend and other additives to form a grouting material; (2) use of slow-release super-plasticizer in reducing the incompatibility of expansive compound cement and admixtures and excessive slump loss; (3) use of re-dispersible polymer latex in improving rheology of grouting material and durability of freeze-thaw resistance, flexibility and waterproof performance; and (4) use of ion exchange treatment in reducing agglomeration between GO-PVA prepolymers.