An anti-crack and anti-seepage composite material for concrete

Abstract

The invention relates to an anti-cracking and anti-permeability composite material for concrete. The composite material comprises the following components in parts by weight: 82 to 83 parts of calciumcarbonate, 2 to 5 parts of magnesium carbonate, 0.3 to 4 parts of titanium dioxide, 5 to 6 parts of bone glue powder, 0.2 to 0.3 part of zinc oxide, 0.5 to 0.6 part of lead nitrate, 1 to 20 parts ofstearic acid, 0.5 to 1.0 part of palmatic acid, and 0.2 to 0.3 part of polyethylene glycol. The composite material has the advantages that the composite material has a self-cleaning function and can effectively improve the anti-frost property and erosion resistance of concrete.

Description

technical field

[0001] The invention belongs to the field of building materials, in particular to an anti-crack and anti-seepage composite material used 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. And domestic various types of concrete shrinkage compensating materials, such as e...

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