Anti-crack, anti-permeation and high-durability concrete and preparation method thereof

Abstract

The invention discloses anti-crack anti-permeation high-durability concrete and a preparation method thereof, relates to the field of concrete, and aims to solve the problem that durability indexes such as crack resistance and permeation resistance of concrete in the prior art are difficult to realize. The concrete is prepared from the following components in parts by weight: 500 to 750 parts of cement, 70 to 85 parts of water, 600 to 680 parts of sand, 1200 to 1450 parts of gravel, 750 to 800 parts of recycled coarse aggregate, 500 to 575 parts of fine aggregate, 25 to 30 parts of silicon powder, 15 to 20 parts of boron nitride powder, 35 to 40 parts of fly ash, 25 to 30 parts of aluminum oxide, 15 to 30 parts of calcium chloride, 45 to 50 parts of silicate, 15 to 20 parts of additive, 60 to 75 parts of sodium silicate, 20 to 25 parts of sodium fluosilicate, 20 to 25 parts of magnesium fluosilicate, 20 to 50 parts of accelerant, 35 to 50 parts of polypropylene fiber, 25 to 40 parts of calcium formate and 50 to 75 parts of sealing curing agent; wherein the additives comprise a water reducing agent, an air entraining agent, a retarder, an early strength agent, an anti-freezing agent and an expanding agent.

Description

technical field [0001] The invention relates to the technical field of concrete preparation, in particular to a crack-resistant, anti-permeation and high-durability concrete and a preparation method thereof. Background technique [0002] Concrete, or cementitious concrete, is a composite material formed by bonding fine and coarse aggregates with cement (slurry), which hardens over time, most commonly in the past with lime-based cements, such as lime paste, But sometimes hydraulic cements, such as calcium aluminate cement or Portland cement, are also used. Non-cementitious concrete differs from other concretes in that it directly bonds various aggregates. Non-cement-based concrete includes asphalt concrete using asphalt bond and polymer concrete using polymer as cementitious material. Among them, asphalt concrete is often used for pavement. When the aggregate is mixed with dry Portland cement and water, the mixture forms a slurry that is easy to pour and shape. Cement rea...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of anti-crack, anti-permeation and high durability concrete and its preparation method, to solve the problem that the durability indexes such as anti-crack and anti-permeation of concrete proposed in the above-mentioned background technology are difficult to realize