▎ 摘　　要

NOVELTY - Preparing high-strength concrete, comprises weighing 465-510 pts. wt. cement, 625-725 pts. wt. sand, 1020-1120 pts. wt. stone, 23-27 pts. wt. silica fume, 55-70 pts. wt. fly ash, 129-157 pts. wt. water, 7.9-9.4 pts. wt. water reducing agent, 7.6-9.1 pts. wt. energy storage and heat storage additive, 22-30 pts. wt. steel fiber, 11-16 pts. wt. polypropylene fiber, mixing cement, sand, gravel, silica fume, fly ash, energy storage and heat storage additives, then adding water and water reducing agent, mixing, adding steel fiber and polypropylene fiber and mixing to obtain a concrete mixture under the condition of continuous mixing. The concrete mixture is poured and cured to obtain concrete, where the thermal energy storage additive is graphene oxide coated silica modified polystyrene-acrylonitrile grafted polyethylene glycol. USE - Method for preparing high-strength concrete. ADVANTAGE - The method enables to prepare high-strength concrete, which exhibit good compressive strength and flexural strength, and also reduces the occurrence of cracks in the concrete, improves the crack resistance and frost resistance of the concrete, and makes the concrete exhibit good comprehensive performance, and has a good application prospect.