▎ 摘　　要

NOVELTY - Sponge city high strength regenerated aggregate concrete comprises 600-800 pts. wt. reinforced regenerated coarse aggregate, 400-600 pts. wt. cement, 100-200 pts. wt. water, 50-100 pts. wt. steel slag powder, 35-70 pts. wt. limestone powder, 30-60 pts. wt. nano silicon dioxide, 20-40 pts. wt. graphene oxide powder, 15-30 pts. wt. polyacrylate, 10-15 pts. wt. sodium silicate, 5-10 pts. wt. water reducing agent, 4-8 pts. wt. high water-absorbing resin, and 6-12 pts. wt. modified reinforcing agent. The modified reinforcing agent comprises 15-20 pts. wt. nano-calcium carbonate, 12-18 pts. wt. polyvinyl alcohol, 8-12 pts. wt. diboron trioxide, 4-8 pts. wt. amino trimethylene phosphonate, 0.8-1.2 pts. wt. coupling agent and 10-20 pts. wt. water, and it is prepared by e.g. (a) uniformly mixing polyvinyl alcohol and diboron trioxide, heating to 30-40degrees Celsius, adding nano-calcium carbonate, continuously stirring for 20-30 minutes to obtain a blend. USE - The concrete is useful in building material. ADVANTAGE - The concrete: has stable and durable compressive strength, wear resistance, anti-freezing and anti-deformation ability, and better adapt to the environment with high pressure. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the sponge city high strength regenerated aggregate concrete.