Anti-crack and anti-seepage agent for concrete

Abstract

The invention is applicable to the field of building materials, and provides an anti-cracking and anti-seepage agent for concrete, comprising the following components in the following parts by weight: 10-70 parts of fly ash, 10-50 parts of fluorogypsum, and 10-50 parts of phosphate rock slag 70 parts, magnesium oxide 5‑50 parts. The anti-cracking and anti-seepage agent for concrete can reduce heat of hydration, compensate concrete shrinkage, improve concrete strength, prevent cracking, leakage and the like, and improve the stability and durability of concrete.

Description

technical field [0001] The invention belongs to the field of building materials, in particular to an anti-crack and anti-seepage agent for concrete. Background technique [0002] Concrete is one of the most important civil engineering materials in contemporary times and is widely used in all aspects of construction. However, due to the widespread shrinkage of concrete, especially large-volume concrete and high-strength concrete, concrete cracks are caused, and the performance of concrete strength, anti-seepage, and corrosion resistance is reduced. However, the obvious defects of shrinkage-compensated concrete materials currently used in the market are: the heat of hydration of concrete is high, the shrinkage and deformation of concrete are large, and phenomena such as concrete cracking and leakage are common, and at the same time, the strength of concrete is greatly reduced. Moreover, most of the domestic various types of concrete shrinkage compensating materials, such as e...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide an anti-cracking and anti-seepage agent for concrete, aiming at solving the cracking and leakage problems of super-large-volume concrete and high-strength and high-performance concrete such as hydropower dams, military projects, nuclear power plants, subways, etc.

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