Autoclaved Aerated Concrete blocks

• Advantages of AAC blocks

   1. Lightweight: Porosity achieves 70% to 85% and volume density is generally 500 ~ 900kg/m3. Its weight is as light as 1/5 of general concrete , 1/4 of clay bricks, 1/3 of hollow bricks. It  can float in water as the wood . Using this aac blocks,you can make a great reduction in the cost of integrated building.

   2.Fireproof: Most of the major raw materials is inorganic materials, so it has good fire resistance, and does not emit harmful gases when meet fire. Fire 650 degrees, as a refractory material, the thick up of 90mm walls can reach to 245 minutes fire resistance, 300mm thick up wall can reach to 520 minutes fire resistance.

   3. Sound insulation: Due to a unique porous structure, so it has a sound absorption capacity. The sound absorption capacity can reach of 10mm thick wall up to 41 db.

   4. Insulation: As the material inside has a large numbers of the pores and porous, which has a good thermal insulation properties. The Thermal conductivity is 0.11-0.16W/MK, as 1/4-1/5 of brick. Typically, the insulation effect of 20cm thick aerated concrete wall is equivalent to 49cm thick solid brick walls ordinary.

    5. Permeability: Due to material by the composition of many independent small pores, the moisture absorption is slow, in the volume of absorbent is 5 times of clay saturation do. When used in the bathroom, the wall can be treated to interface directly paste tiles.

    6. Anti-seismic: The same building structure, improve the two seismic than the brick level .

    7. Green: All the process including manufacturing, transportation is environmental friendly to protect arable land, save energy. It  is one kind of a green building material.

    8. Durability: The material strength is stability. In the specimens tested after one year of atmospheric exposure,the intensity increased by 25%, and remained stable after ten years.

    9. Shortcut: It has good machinability, can be sawed, planed, drilled, nailed, and available appropriate as bonding of adhesive material, so create favorable conditions for building construction.

    10. Economies: An integrated lower cost than using more than 5% of solid clay bricks, and can increase the usable area, greatly enhance the utilization of floor space.  

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