What Is Autoclaved Aerated Concrete?

Autoclaved aerated concrete block is based on fly ash, lime, cement, gypsum, slag, etc. as the main raw materials, adding appropriate amount of gas generating agent, conditioner, bubble stabilizer, mixing, mixing, pouring, static stopping, cutting and high pressure A porous concrete product made by processes such as steam curing.

Autoclaved aerated concrete block

The unit volume weight of autoclaved aerated concrete block is one third of that of clay bricks, the thermal insulation performance is 3-4 times that of clay bricks, the sound insulation performance is twice that of clay bricks, and the impermeability is more than double that of clay bricks. , Fire resistance is 6-8 times that of reinforced concrete. The masonry strength of the block is about 80% of the strength of the block itself (30% for red bricks).

The construction characteristics of autoclaved aerated concrete blocks are also very good. It can not only produce various specifications in the factory, but also can be sawed, planed, drilled, nailed like wood, and because of its large size, it is constructed It is also fast and can be used as a filling material for general buildings.

General technical requirements for autoclaved aerated concrete blocks

When a block is used as the main material of a building, its radionuclide limit shall comply with the provisions of GB6566-2010 "Limit of Radionuclide for Building Materials". when

Autoclaved aerated concrete block is suitable for all kinds of building interior (outer and inner filling walls above ± 0.000) and inner filling walls below the ground (with special requirements)

Autoclaved aerated concrete block

Except walls).

Autoclaved aerated concrete blocks should not be built directly on the floor or ground. For the roots of the wall, such as toilets, balconies, external balconies, and the air-conditioning support plate and masonry that are placed on the external wall, which are often subject to alternating wet and dry interactions, it is advisable to pour C20 plain concrete wall mat; for other walls, it is advisable to use autoclaved lime sand bricks at the root to build a wall mat with a height of not less than 0.2m.

Autoclaved aerated concrete blocks shall not be used in the following areas:

1. Buildings below ± 0.000 (except for indoor filling walls in the basement);

2, long-term immersion in water or often wet and dry parts;

3. Chemically eroded environments, such as those with strong acids, alkalis, or high concentrations of carbon dioxide;

4. The masonry surface is often in a high temperature environment above 80 ° C;

5. Roofing daughter wall.