▎ 摘　　要

NOVELTY - Composite material comprises cement and hyper branched graphene oxide. USE - Used as composite material comprising e.g. cement. ADVANTAGE - The composite material realizes the multi-performance improvement application; has improved working mechanics and durability: improves the mechanical properties; enables unmodified graphene oxide agglomeration; has good dispersibility; overcome the influence of unmodified graphene oxide on the performance of cement; enhances the curing ability of cement to chloride ions and realizes high-performance preparation in severe service environment. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing composite material. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the preparation process of the composite material(Drawing includes non-English language text).