▎ 摘　　要

NOVELTY - Usage of graphene oxide as reinforcing agent is claimed. USE - Usage of graphene oxide as reinforcing agent for graphene oxide-modified cement used for preparing mortar (all claimed). ADVANTAGE - The graphene oxide has high surface activity, and can improve hydration process of the cement. The cement has improved mechanical property. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) graphene oxide-modified cement; and (2) preparation of graphene oxide-modified cement mortar.