▎ 摘　　要

NOVELTY - Graphene/carbon nanotube cement based waterproofing material comprises 1.2-2 pts. water agent and 15-25 pts. powder. The water agent comprises 0.005-0.03 pts. wt. graphene, 0.005-0.3 pts. wt. water, 0.8-1.2 pts. wt. dispersant and 0.1-0.3 pts. wt. defoaming agent. The powder comprises 6-9 pts. wt. Portland cement, 12-14 pts. wt. silicon fine sand, 0.6-1 pts. wt. industrial waste residue, 0.8-2 pts. wt. superfine silicon mineral admixture, 1.5-3.5 pts. wt. silicon-aluminum mineral admixture, 1.2-2.2 pts. wt. bentonite and 0.1-0.4 pts. wt. water reducing agent. USE - The method is useful for preparing graphene/carbon nanotube cement based waterproofing material (claimed). ADVANTAGE - The waterproofing material has excellent water seepage resistance, good self-healing ability, prolonged service life and can reduce the carbonization depth of the concrete. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the graphene/carbon nanotube cement based waterproofing material, comprising: (i) mixing the graphene and carbonnano tube in water, then continuously adding dispersant and defoaming agent, mixing and ultrasonicating for 30-60 minutes to obtain solution A; and (ii) adding industrial waste residue, superfine silicon mineral admixture, silicon aluminum mineral admixture, bentonite, water reducing agent and silicate cement into the solution A, uniformly mixing, adding siliceous sand, and continuously stirring.