Developed rapidly in China, AAC products have a wide and bright future, and the AAC has become a backbone industry in architecture, and the technology has been introduced to China for about forty years. The production and sales of AAC equipment and integral indicators of products rank ahead in the trade at home. Due to the rich materials for the production of AAC, especially fly ash as raw material is a wall material instead of traditional solid clay bricks, which can utilize industrial waste residue, control environmental pollution, protect infield and bring sound social and economic benefits. In addition, the fly ash-based AAC is featured of light weight, high temperature preservation and noise absorption. In the past years, with the great supports from policies in relation to wall building, taxation and environmental protection, AAC products have been key parts for new building materials with wide market prospect.

Production process of AAC

According to types and quality of raw materials and technological properties of main equipment, the products are processed under different techniques. Generally, add water to fly ash pr silica sand to grind into slurry, then add powdered lime, proper cement, parget and foaming agents, mixing and then pour into die carriers, after foaming, the product can be cut into building blocks or plates, which will be conveyed into the autoclave via larry, under the action of saturated steam under high temperature, the light multi-porous fly ash AAC will come into being.

Characteristics of AAC

1.       Sound heat insulation performance

2.       Light, capacity scope:400-700kg/m3

3.       High precision, error of external size 1.5mm

4.       Sound insulation (RW=52Db-A)

5.       Incombustibility and safety

6.       Flexible process