▎ 摘　　要

NOVELTY - High-compact self-cleaning concrete modified by graphene oxide-titanium dioxide nano-fluid comprises 400-600 pts. wt. Portland cement, 240-320 pts. wt. water, 1600-1800 pts. wt. aggregate, 25-35 pts. wt. mineral admixture, 4-8 pts. wt. water reducing agent and 100-120 pts. wt. graphene oxide-titanium dioxide composite nano-fluid. USE - The high compact self-cleaning concrete is useful in concrete preparation application, preferably concrete preparation method. The concrete is used as nucleation site of hydration product for accelerating the hydration. ADVANTAGE - The high compact self-cleaning concrete has increased surface roughness of graphene oxide, reduced agglomeration of composite nanoparticles, improved compactness of concrete material, improved mechanical property and durability of concrete, adopts photocatalytic activity of titanium dioxide nano-rods to photocatalyze the degradation of pollutants, purifies the air and environment, and achieves the effect of self-cleaning. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the concrete, involving (a) uniformly stirring cement, water, aggregate, mineral admixture and water reducing agent, (b) pouring obtained mixture to graphene oxide-titanium dioxide nanofluid, and continuously stirring obtained mixture until uniform, and (c) molding obtained mixture, and adding the mixture to standard curing chamber for mold maintenance for 28 days.