Impact resistance concrete

Abstract

The invention discloses impact resistance concrete which comprises the following raw materials in parts by mass: 180-270 parts of cement, 85-115 parts of mineral powder, 80-110 parts of pulverized fuel ash, 720-936 parts of sand, 780-1080 parts of macadam, 165-195 parts of water, 6.5-9.5 parts of an additive and 20-35 parts of carbon fiber composite. The impact resistance of the concrete can be improved.

Description

technical field [0001] The invention relates to the technical field of concrete production, in particular to impact-resistant concrete. Background technique [0002] The preparation of concrete in the prior art is only prepared by mixing cement, sand, stones, water and water reducing agent. The advantages of such concrete are high compressive strength, easy material acquisition, easy molding, low price, and can be combined with steel Made into various load-bearing components, but sometimes the concrete will cause plastic shrinkage and cracks due to bleeding and water loss in the early hardening stage after pouring; resulting in low tensile strength, high brittleness and poor toughness of concrete, thereby reducing the bearing capacity of the concrete structure capacity, shorten the service life, and become a hidden danger of various disasters. In particular, its impact resistance is poor, and it is prone to brittle fracture and falling off under impact load. Therefore, for...

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Problems solved by technology

[0004] However, the fibers are not easily soluble in water and have a low density. Therefore, in the process of mixing with concrete, the fibers tend to float up and cause uneven dispersion in the concrete, resulting in uneven distribution of the toughness and impact resistance of each part of the prepared concrete. Affect the overall performance of concrete

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