▎ 摘　　要

NOVELTY - Shrinkage-resistant and carbon-based nano-reinforcing agent comprises 1-10 wt.% modified fumed silica dispersion, 1-12 wt.% modified super absorbent resin microsphere, 0.3-5 wt.% graphene oxide and deionized water (remaining amount). The modified fumed silica dispersion comprises 20-40 wt.% fumed silica, 5-10 wt.% calcium carbide slag, 40-60 wt.% deionized water, 1-12 wt.% phenyltriethoxysilane and 5-30 wt.% anhydrous ethanol. The modified super absorbent resin microsphere comprises 20-40 wt.% super absorbent resin microspheres, 1-5 wt.% surface modifier and 40-60 wt.% water. USE - The nano-reinforcing agent is useful for improving strength of concrete. ADVANTAGE - The nano-reinforcing agent improves strength of concrete. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing the shrinkage-resistant and carbon-based nano-reinforcing agent; and (2) using the shrinkage-resistant and carbon-based nano-reinforcing agent, comprising mixing shrinkage-resistant and carbon-based nano-reinforcing agent and concrete.