▎ 摘　　要

NOVELTY - A repair material composition comprises cement and aggregate containing 0.01-0.3 pts. wt. graphene oxide, 0.1-0.2 pts. wt. benzothiazole-based compound (I), 0.1-0.2 pts. wt. fluoro-phenyl-propylbenzene based compound (II), and 0.1-0.2 pts. wt. thieno-thiazole based compound (III) based on 100 pts. wt. solid content of the composition. USE - Composition used for repairing concrete structure (claimed). ADVANTAGE - The repair material composition prevents neutralization, improves flexural strength, and brittleness of concrete. The compound (I), and (II) forms a repair layer having increased compressive strength. The compound (III) improves the strength of the concrete of the repair material composition. DETAILED DESCRIPTION - A repair material composition comprises cement and aggregate containing 0.01-0.3 pts. wt. graphene oxide, 0.1-0.2 pts. wt. benzothiazole-based compound of formula (I), 0.1-0.2 pts. wt. fluoro-phenyl-propylbenzene based compound of formula (II), and 0.1-0.2 pts. wt. thieno-thiazole compound of formula (III) based on 100 pts. wt. solid content of the composition. An INDEPENDENT CLAIM is included for method for repairing a concrete structure, which involves repairing the cross section of the structure by pouring the repair material composition on the concrete structure.