▎ 摘　　要

NOVELTY - Cement composite prepared by mixing carbon nanotubes and graphene with cement, is claimed. USE - Used as cement composite. ADVANTAGE - The composite includes carbon nanotubes mixed with graphene having large specific surface, there by having improved electrical conductivity, and exhibits improved electrical properties. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the cement composite, comprising (i) dry-mixing cement and silica fume to obtain a mixture, (ii) dry-mixing the obtained mixture with carbon nanotubes and graphene according to the proportion, and (iii) mixing the obtained mixture with water. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic process flow for producing cement composite (Drawing includes non-English language text). Step of mixing cement and silica fume (S1) Step of mixing cement-silica fume with graphene and carbon nanotubes (S2) Step of mixing cement-silica fume-graphene-carbon nanotubes mixture with water (S3)