High-durability concrete in high-salt service state and preparation method thereof

Abstract

The invention relates to the field of concrete, and particularly discloses high-durability concrete in a high-salt service state and a preparation method of the high-durability concrete. The concrete is prepared from the following raw materials: cement, mineral powder, fly ash, an expanding agent, fine aggregate, red brick powder, coarse aggregate, a water reducing agent, an air entraining agent, an anti-corrosion and anti-rust agent, water, super absorbent resin, reinforced fibers and epoxy resin microcapsules. The preparation method comprises the following steps: S1, mixing the red brick powder and the water, and standing; and s2, mixing and stirring the cement, the mineral powder, the fly ash, the water and the water reducing agent, then adding other raw materials except the epoxy resin microcapsules, continuously stirring, finally adding the epoxy resin microcapsules, and continuously stirring. The concrete disclosed by the invention has relatively high cracking resistance, penetration resistance and mechanical property, so that the concrete has relatively high durability and relatively long service life.

Description

technical field [0001] The application relates to the field of concrete, and more specifically, it relates to a high-durability concrete in a high-salt service state and a preparation method thereof. Background technique [0002] As the most widely used building material, cement concrete has the advantages of rich raw materials, low cost, strong adaptability and convenient application. The cement concrete used in various engineering projects in my country reaches more than 2 billion cubic meters every year. [0003] At present, many engineering projects will have relatively harsh natural conditions of high salt and high humidity. This natural condition of high salt and high humidity will cause strong erosion of concrete. If the corrosion resistance of concrete is poor, it will make concrete Corrosion poses a great threat to the safety of structures. The anti-corrosion ability of concrete generally has a great relationship with its anti-cracking ability. If the anti-cracking...

AI Technical Summary

Problems solved by technology

[0003] At present, many engineering projects will have relatively harsh natural conditions of high salt and high humidity. This natural condition of high salt and high humidity will cause strong erosion of concrete. If the corrosion resistance of concrete is poor, it will make concrete Corroded, posing a great threat to the safety of structures

The anti-corrosion ability of concrete generally has a great relationship with its anti-cracking ability. If the anti-cracking ability of concrete is poor, there will be different degrees of cracking after construction, and as the use time gets longer and longer, the cracks will gradually disappear. The width will continue to grow. These cracks provide a path for the penetration of chloride ions and sulfate ions, seriously reducing the corrosion resistance of concrete, causing serious corrosion of concrete, and greatly reducing the durability of concrete. stability and safety of the structure

Images