▎ 摘　　要

NOVELTY - A concrete, comprises 100-130 pts. wt. cement, 300-350 pts. wt. aggregate, 20-30 pts. wt. basalt fibers, 10-20 pts. wt. calcined clay, 15-30 pts. wt. fly ash, 10-20 pts. wt. oxide graphene-modified aluminosilicate minerals, 3-5 pts. wt. excitants, 10-20 pts. wt .aerogel expanded perlite, 5-10 pts. wt. redispersible latex powder, and 40-60 pts. wt. water. USE - Concrete and hollow steel pipe concrete rectangular beam for high-rise building. Can also be used in bridge building and building construction structure such as beam-plate type floor cover or single layer or multi-layer frame integrated with reinforced concrete column. ADVANTAGE - The concrete and hollow steel pipe concrete rectangular beam has low dry apparent density, high strength, long-term stable and good mechanical property. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) a preparation method of concrete; (2) a hollow steel pipe concrete rectangular beam.