Anticorrosive building concrete

Abstract

The invention discloses an anti-corrosion building concrete, which comprises cement, anti-corrosion agent and dispersant, and the anti-corrosion agent is formed by mixing the following components in parts by weight: 30 parts of aluminum oxide, silicon dioxide, Calcium hydroxide; 20 parts of calcium nitrite, 10 parts of polypropylene fiber composed of 100:5:8950, organic expansion agent, sodium silicate, 3 parts of rosin thermal polymer, 10 parts of calcium nitrate composed of 3:1 , calcium oxide; 17 parts by 92:4:4 neutral calcium dinonyl naphthalene sulfonate, sodium gluconate, citric acid; 10 parts by 11:7 composition of microsilica, ultrafine mineral powder; The dispersant is mainly silica fume, the anticorrosion agent accounts for 10-15% of the total weight of the concrete, and the dispersant accounts for 10-15% of the total weight of the concrete. The invention has good anti-corrosion and anti-erosion properties, comprehensive functions, and can resist complex damage to concrete by soil and groundwater.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to an anti-corrosion building concrete. Background technique [0002] Concrete anticorrosion agent is a new generation of anti-corrosion products for reinforced concrete. It breaks through the traditional concept of anti-corrosion of reinforced concrete, creates a new method of using admixtures for anti-corrosion, and fundamentally solves many shortcomings and problems of traditional anti-corrosion methods. limitation. The use of concrete anti-sulfate corrosion preservatives can make concrete have good properties such as salt ion corrosion resistance, freeze-thaw cycle damage resistance and high penetration resistance. It is especially suitable for projects requiring both anti-corrosion and impermeability for concrete buildings. Adding this product can also reduce the shrinkage value of concrete, which is convenient for mass concrete construction. Concrete preservative...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of anti-corrosion building concrete, to solve the existing in the prior art under the corrosion action of the medium such as carbon dioxide, water, chloride ion, sulfate, etc., be inevitably corroded by the influence of external factors, concrete It will accelerate the destruction and greatly shorten the service life