▎ 摘　　要

NOVELTY - Composite high-efficiency water reducing agent containing graphene oxide microsphere comprises 15-30 pts. wt. high-efficiency water reducing agent, 55-70 pts. wt. water, 0.01-0.5 pts. wt. graphene oxide microsphere and 0.001-0.005 pts. wt. auxiliary agent. USE - Used as composite high-efficiency water reducing agent containing graphene oxide microsphere. ADVANTAGE - The high-efficiency water reducing agent enhances flexural strength, tensile strength and durability of cement-based composite material, reduces amount of graphene oxide in composite water reducing agent and the cost. The method is simple, reasonable and environmentally-friendly. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing composite water reducing agent containing graphene oxide microsphere, comprising (i) mixing 15-30 pts. wt. high-efficiency water reducing agent and 55-70 pts. wt. water, stirring and mixing uniformly to obtain high-efficiency water reducing agent solution; and (ii) adding 0.01-0.5 pts. wt. graphene oxide microsphere into high-efficiency water reducing agent solution and ultrasonically stirring graphene oxide microsphere and adding 0.0005-0.0025 pts. wt. air entraining agent and 0.0005-0.0025 pts. wt. antifoaming agent, mixing without bubbles.