Aerated concrete building block and preparation method

Abstract

The invention discloses an aerated concrete building block and a preparation method. The aerated concrete building block consists of the following materials in parts by weight: 60 to 80 parts of cement, 50 to 60 parts of boiler ash, 30 to 40 parts of silicon material, 15 to 25 parts of activated silica material, 20 to 30 part of quick lime, 20 to 30 parts of hydrogen peroxide, 2 to 10 parts of additive, 2 to 8 parts of calcium silicate, 2 to 8 parts of sodium silicate, 1 to 5 parts of aluminium powder and 40 to 80 parts of deionized water. The materials of the aerated concrete building block are inorganic materials, the aerated concrete building block has high strength and new thermal insulation property, the material sources are rich, the price is low, the aerated concrete building block is safe and nontoxic, and the aerated concrete building block produce produced by the method has good compressive strength and thermal insulation property.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an aerated concrete block and a preparation method thereof. Background technique [0002] With the strengthening of my country's environmental protection and the implementation of sustainable development strategies, people's awareness of environmental resource protection has gradually strengthened, and building energy conservation and environmental protection have received more and more attention. The development of new wall materials with non-clay as the main raw material and the active promotion of energy-saving buildings are effective ways to protect the cultivated land resource environment, improve building functions and living comfort, and promote the construction of a resource-saving society. [0003] At present, air-entrained concrete block is a lightweight and porous new energy-saving building material, which has the characteristics of light weight, good heat p...

AI Technical Summary

Problems solved by technology

[0004] However, in the production process of the existing air-entrained concrete blocks, due to the unstable composition of the air-generating agent, uneven stirring by the mixer, unreasonable air bubble arrangement, and excessive concentration of the chemical reaction of the air-generating agent in the slurry, resulting in regional small The pores are broken, and many harmful large pores are formed, which reduces the proportion of completely closed round holes inside the green body, and the physical properties of the aerated concrete block, such as compressive strength, flexural strength and thermal insulation, are adversely affected