The autoclaved aerated concrete product is a new type of light and porous green environmental protection building material that uses cement, lime and silica sand as the main raw materials and then adds different amounts of anti-corrosion reinforced steel mesh according to the structural requirements. After high-temperature, high-pressure and steam curing, its density is lower than that of ordinary cement materials, and it has good performances such as fire resistance, fire prevention, sound insulation, heat insulation and heat preservation.
(1) Thermal insulation, thermal insulation
During the production of autoclavedaerated concrete products, numerous tiny pores are formed inside. These pores form a static air layer in the material, so that the autoclavedaerated concrete product has good thermal insulation performance. Its thermal insulation is six times that of glass, seven times that of clay bricks, and ten times that of ordinary concrete.
(2) Fire resistance, flame retardant
Autoclaved aerated concrete is an inorganic substance that will never burn and will not produce harmful gases even at high temperatures. At the same time, the thermal conductivity of autoclaved aerated concrete is very small, which makes the heat conduction slow, effectively resists fire, and protects its structure from fire.
(3) Sound absorption,noise reduction
The autoclaved aerated concrete is filled with small pores, which has good sound insulation effect, and can reduce the noise of 30~50 dB by its thickness.
The weight of autoclaved aerated concrete is only 550~650 kg per cubic meter, which is 1/4 of ordinary concrete and 1/3 of clay brick, which is equivalent to wood. The use of autoclaved aerated concrete in construction can reduce the weight of the building, reduce the cross-sectional size of structural members, reduce the cost of foundation, and reduce the difficulty of construction of weak foundation.
Just like wood, autoclaved aerated concrete products can be sawed, drilled, nailed, and ground more easily.