Advantages of autoclaved aerated concrete

Autoclaved aerated concrete has now become the building material of choice for sustainable construction. Rich product types and superior material characteristics provide a perfect basis for modular, efficient, fast and environmentally friendly housing solutions beyond traditional building materials. Autoclaved aerated concrete products are mainly made of blocks and slabs. Let’s take a closer look at the advantages of autoclaved aerated concrete products.

Advantages of autoclaved aerated concrete blocks

Autoclaved aerated concrete

1. Thermal insulation

In the production process of aerated concrete products, countless tiny air holes are formed inside. These pores form a layer of still air in the material, so that the aerated concrete block has good thermal insulation properties. Its thermal insulation is six times that of glass, seven times that of clay bricks, and ten times that of ordinary concrete blocks.

2. Fire-resistant and flame-retardant

Aerated concrete blocks are inorganic substances and will never burn, and will not produce harmful gases even at high temperatures. At the same time, the thermal conductivity of the aerated concrete block is very small, which makes the heat conduction slow, can effectively resist fire, and protect its structure from fire.

3. Sound absorption and sound insulation

The inside of the aerated concrete block is filled with small air holes, which has a good sound insulation effect, and can reduce the noise of 30-50 decibels by its thickness.


The weight of aerated concrete block per cubic meter is only 550 ~ 650 kg, which is 1/4 of ordinary concrete and 1/3 of clay brick, which is equivalent to wood. The use of aerated concrete blocks in the building can reduce the self-weight of the building, reduce the size of the structural member bearing surface, reduce the cost of ground steaming, and reduce the difficulty of construction of weak ground.

5. Can be processed

Like wood, aerated concrete products can be sawed, drilled, nailed and ground more easily.

Advantages of autoclaved aerated concrete pannel

1. Light weight and high strength

Autoclaved aerated concrete pannel have a porosity of 70% to 85%, and bulk density is generally 500 to 900kg / m3, which is 1/5 of ordinary concrete, 1/4 of clay bricks, 1/3 of hollow bricks, which is similar to wood. Floating on water. Can reduce the weight of the building and greatly reduce the overall cost of the building.

2.Fire and flame retardant

The main raw materials of autoclaved aerated concrete pannels are mostly inorganic materials, so they have good fire resistance and do not emit harmful gases in the event of fire. The fire resistance is 650 degrees. It is a first-grade refractory material. The fire resistance of 90mm thick wall is 245 minutes, and the fire resistance of 300mm thick wall is 520 minutes.

3. Noise reduction

Autoclaved aerated concrete pannel has a unique porous structure, so it has a certain sound absorption capacity. The 10mm thick wall can meet the building sound insulation requirements of 30-60 decibels.

4. Thermal insulation

There are a large number of air holes and micro holes in the autoclaved aerated concrete slab. These air holes and micro holes form an air layer, so it has a good thermal insulation effect. The thermal conductivity is 0.11-0.16W / (M.K), which is only 13% of that of concrete, 28.6% of clay solid bricks and concrete hollow masonry. The thermal insulation effect of a 500px thick aerated concrete wall is equivalent to a 1225px thick ordinary solid clay brick wall.

5. Impervious to moisture

Autoclaved aerated concrete slab is composed of many independent closed pores of 1-2mm, which absorbs water slowly and conducts moisture. The time required to absorb water to saturation in the same volume is 5 times that of clay bricks. With the special impermeability formula, it can effectively prevent water diffusion. And penetration. When used in the bathroom, tiles can be directly pasted after interface treatment on the wall.

6. Seismic enhancement

For the same building structure, autoclaved aerated concrete slabs are 2 earthquake-resistant grades higher than clay bricks.

7.Environmental protection and energy saving

There is no pollution during manufacturing, transportation and use, which can protect cultivated land, save energy and reduce consumption, and is a green environmental protection building material.

8. Durable and practical

The strength of the autoclaved aerated concrete slab is stable. After one year of exposure to the atmosphere, the strength of the autoclaved aerated concrete slab increased by 25%, and it remained stable after ten years.

9.Convenient construction

The volume of an autoclaved aerated concrete slab is equivalent to 18 red bricks, and it can be used for dry-laying and continuous operation without being limited by the height of a single masonry, which can greatly increase the construction speed. Colleagues also have good processability, which can be sawed, planed, drilled, nailed, and bonded with appropriate bonding materials, creating favorable conditions for building construction.

10. Reduce the cost

The comprehensive cost of autoclaved aerated concrete slabs is more than 5% lower than that of solid clay bricks, and it can increase the use area and greatly improve the utilization of building area.

By designing innovative building systems for residential, commercial, and public buildings, we will design new solutions for our customers or convert existing buildings into optimized autoclaved aerated concrete buildings. Adapt the best combination of buildings by standardizing the dimensions of the panels. The use of prefabricated building solutions (floors, wall panels, roofs, lintels) can directly save a lot of time and cost in later construction.