▎ 摘　　要

NOVELTY - Anti-seepage agent comprises 5-10 pts. wt. graphene, 10-25 pts. wt. alcohol amine compound, 50-75 pts. wt. mineral admixture, 6-15 pts. wt. gypsum and 4-10 pts. wt. component A, where the total volume of the above components is 100 pts. wt.. USE - The anti-seepage agent is useful for waterproofing curing of cement mortar (claimed). ADVANTAGE - The agent improves impermeability, has waterproofing property and has mechanical strength for the building mortar. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing anti-seepage agent comprising (i) preparation of mixed slurry of graphene/alcohol amines, adding alkanolamines into the aqueous suspension of graphene to obtain a mixed slurry, (ii) grinding the mixed slurry to obtain a uniformly dispersed mixed slurry of graphene/alcohol amines, (iii) dry milling the mixture of mineral admixture and gypsum to obtain mixed powder A; (iv) adding mixed slurry of graphene/alkanolamine into the mixed powder A and spraying uniformly to obtain a mixed powder B in which graphene is uniformly dispersed; and (v) mixing the component A and the mixed powder B.