▎ 摘　　要

NOVELTY - A concrete mixture with functionalized graphene comprises functionalized graphene which is functionalized by a surfactant and has a particle size of 0.2-20 mu m. USE - A concrete mixture with functionalized graphene. ADVANTAGE - The functionalized graphene added to the concrete mixture increases the compressive strength, flexural strength, and tensile strength. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparing concrete mixture with functionalized graphene which involves (a) taking an exfoliating liquid containing sodium laureth sulfate and linear alkylbenzene sulfonates, and water in equal proportions by volume; (b) dispersing and mixing a pristine graphite powder in the exfoliating liquid of step (a), where the pristine graphite powder is taken in equal proportion by mass to that of exfoliating liquid; (c) shearing blending of the dispersion of step (b) in four blade shear mixer at greater than or equal to 8000 rpm for 30 minutes; (d) oven drying the blend of step (c) for 24 hours to obtain a functionalized graphene powder; (e) preparing a dry mixture of cement, coarse aggregate, and sand; (f) preparing a solution of functionalized graphene powder in a water; (g) stirring the solution of step (f); (h) mixing the dry mixture and solution of the functionalized graphene for preparing wet concrete mix; and (i) casting and then curing the wet concrete mix.