Waterproof aerated concrete block and preparation method thereof

Abstract

The invention discloses a waterproof aerated concrete block and a preparation method thereof. The waterproof aerated concrete block is prepared from the following raw materials in parts by weight: 46-64 parts of desert sand, 28-36 parts of ash calcium powder, 15-20 parts of tuff, 22-28 parts of red mud, 14-21 parts of desulfurization ash, 10-15 parts of ardealite, 12-16 parts of bauxite, 4-7 parts of aluminum chloride crystal, 3-6 parts of sodium hexametaphosphate, 5-10 parts of alum, 2-3 parts of waste molasses, 3-5 parts of water glass, 1.5-2.5 parts of candelilla wax powder, 1-2 parts of methyl-ethyloxy silicone oil, 0.5-1 part of potassium perfluorooctane sulfonate and 0.7-1.3 parts of modified aluminum powder. The aerated concrete block disclosed by the invention has good waterproof property and excellent water resistance and hydration resistance and can be used for effectively solving the influence of bad conditions such as dampness and raininess on the performance of the aerated concrete block so as to prolong the service life of the aerated concrete block. The aerated concrete block also has good heat insulation property, relatively high compressive strength and broad application prospect.

Description

technical field [0001] The invention relates to a waterproof aerated block and a preparation method thereof, belonging to the field of building materials. Background technique [0002] Aerated blocks are made of siliceous materials (sand, fly ash and silicon-containing tailings, etc.) and calcareous materials (lime, cement, etc.) Pores are formed by chemical reactions, and porous silicate products are made through casting molding, pre-curing cutting, autoclaving curing and other processes. Aerated blocks have the characteristics of light weight, thermal insulation, good machinability, wide source of raw materials, high production efficiency, and low production energy consumption. They are widely used in load-bearing, enclosure, and filling of industrial and civil buildings. The general attention of various countries has become the preferred building material that many countries vigorously promote and develop. With the rapid development of my country's construction industry...

AI Technical Summary

Problems solved by technology

With the rapid development of my country's construction industry, the water resistance requirements of aerated blocks are getting higher and higher. However, the water resistance of traditional aerated blocks can no longer meet the market demand. Therefore, it is urgent to develop a waterproof aerated block.