Production method of aerated concrete building block with low cost and high properties

Abstract

The invention discloses a production method of an aerated concrete building block with low cost and high properties, which comprises following materials in part by weight: 22-24 parts of No. 32.5 cement, 154-160 parts of quartz sand, 35-37 parts of lime, 8-10 parts of gypsum, 0.165 parts of aluminium powder, 20-25 parts of fly ash, 23-35 parts of chemical inorganic salt solid waste, 200-245 parts of water, 1-2 parts of water reducer polymethenylanthracenesulfonate, 2-3 parts of cross-linking agent trimethylmetacrylic acid ester TRIM,and 3-5 parts of polyvinyl alcohol. In the invention, oscillation and pressurization during the casting ensures the compactness of the casting products, promotes the compressive strength of the building blocks, and lowers the materials shrinkage. The production method solves problems that the aerated concrete in the prior art has a low intensity, and large shrinkage, and is easy to crack.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a production method of an aerated concrete block. Background technique [0002] As a new type of wall material, air-entrained concrete is a low-energy, environmentally-friendly new building material, which belongs to the building materials promoted by the state. Ordinary air-entrained concrete is made of cement, fly ash, quicklime, gypsum, etc., to a certain extent. The production cost is high, and cement generally adopts No. 42.5 in conventional production, which further increases the production cost of concrete blocks. my country is a big country in the production of chemical products. In chemical production, a large amount of inorganic salt waste residues are produced every year. Most of these waste residues are finally disposed of in the form of solid waste, resulting in a large waste of resources. Therefore, the treatment and utilization of waste slag is very important. Th...

AI Technical Summary

Problems solved by technology

[0002] As a new type of wall material, air-entrained concrete is a low-energy, environmentally-friendly new building material, which belongs to the building materials promoted by the state. Ordinary air-entrained concrete is made of cement, fly ash, quicklime, gypsum, etc., to a certain extent. The production cost is high, and cement generally uses No. 42.5 in conventional production, which further increases the production cost of concrete blocks