▎ 摘　　要

NOVELTY - Preparation of graphene high-strength cement composite material involves (1) adding graphene material powder to vinylon spinning solution, dispersing, performing wet spinning process to obtain graphene vinylon fiber, (2) mixing graphene vinylon fiber with cement, adding foaming agent and water, stirring to obtain graphene-vinylon-cement composite material, and (3) spraying graphene high-strength coating on the surface layer of the graphene-vinylon-cement composite material. USE - Preparation of graphene high-strength cement composite material (claimed) for building, road surface and sea wall. ADVANTAGE - The prepared graphene high-strength cement composite material has high strength, excellent water resistance, corrosion resistance and impact resistance, and prolonged service life, and is economical.