▎ 摘　　要

NOVELTY - A charging, storing and discharging concrete material comprises cement, quartz sand, quartz powder, silicon ash, carbon nanomaterial, steel fiber, water reducing agent, surfactant and water, where the content of cement is 600-1000 pts. wt., the content of quartz sand is 660-1100 pts. wt., the content of quartz powder is 210-350 pts. wt., the content of silicon ash is 150-251 pts. wt., the content of steel fiber is 1-2 vol.%, the content of carbon nanomaterial is 0-0.2 wt.% of the total amount of cement, the content of water reducing agent is 1-2 wt.% of the total weight of cement, and the amount of surfactant is 1-10 times the weight of the carbon nanomaterial. USE - Charging, storing and discharging concrete material for building. ADVANTAGE - The formation of capacitors inside the concrete is promoted by adding steel fibers and carbon nanomaterials. When the power is turned on, the external electric energy is stored in the capacitor, and after the power is turned off, the stored electric energy is released automatically. The concrete has high mechanical property, high toughness, and high impermeability, and has the ability to charge, store and release electrical energy. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the preparation method of the charging, storing and discharging concrete material, which involves (1) dispersing the raw material components except quartz sand and steel fiber in water, adding quartz sand and steel fiber in turn, mix uniformly, putting into a mold, compacting and forming, and (2) embedding electrodes at both ends of concrete obtained in step (1), vibrating and leveling again, leaving still, and disassembling the mold to obtain a target product.