What does the autoclaved aerated block of J02A mean

The aerated block is a light porous silicate product made of siliceous materials (sand, fly ash and silica-containing tailings, etc.) and calcareous materials (lime, cement) as the main raw materials, mixed with gassing agent (aluminum powder), through batching, stirring, pouring, pre-cursing, cutting, autoclaving, curing and other processes.

Introduction to the characteristics of autoclaved aerated blocks in this paragraph.

1. Light weight: porosity up to 70% 85%, bulk density is generally 500 900kg m3, 1 5 of ordinary concrete, 1 4 of clay bricks, 1 3 of hollow bricks, similar to wood, can float in water. It can reduce the weight of the building and greatly reduce the comprehensive cost of the building.

2. Fire prevention: Most of the main raw materials are inorganic materials, so they have good fire resistance and do not emit harmful gases in case of fire. The fire resistance of 650 degrees is a first-class refractory material, and the fire resistance of 90mm thick wall is up to 245 minutes, and the fire resistance of 300mm thick wall is up to 520 minutes.

3. Sound insulation: Because of its unique porous structure, it has a certain sound absorption ability. 10mm thick walls can reach 41 decibels.

4. Thermal insulation: Because the material has a large number of pores and micropores inside, it has good thermal insulation performance. The thermal conductivity is 1 4-1 5 of clay bricks.

Usually the thermal insulation effect of a 20cm thick aerated concrete wall is equivalent to a 49cm thick ordinary solid clay brick wall. 5. Impermeability: Because the material is composed of many independent small pores, it absorbs water and conducts moisture slowly, and the time required to absorb water to saturation in the same volume is 5 times that of clay bricks.

When used in the bathroom, the tile can be applied directly to the wall after the interface treatment. 6. Earthquake resistance: The same building structure is 2 levels higher than clay bricks.

7. Environmental protection: no pollution in the process of manufacturing, transportation and use, which can protect cultivated land, save energy and reduce consumption, and is a green building material. 8 Durability:

The strength of the material is stable, and the strength has increased by 25% after one year of atmospheric exposure to the specimen, and remains stable after ten years. 9. Fast: It has good machinability, can be sawed, planed, drilled, nailed, and can be bonded with appropriate adhesive materials, which creates favorable conditions for building construction.

10. Economy: The comprehensive cost is reduced by more than 5% compared with the use of solid clay bricks, and the usable area can be increased, and the utilization rate of the construction area can be greatly improved.

1. Meaning: 1. The meaning of a rough book is an excellent product.

5 refers to compressive strength.

3. B06 refers to the dense product degree.

It can also be understood as: it means that the bulk density is 600kg m 3, 15%, and the strength is the superior autoclaved sand aerated concrete block.

Second, the definition of autoclaved aerated concrete blocks Yan Changhong:

It is a kind of porous concrete product made of fly ash, lime, cement, gypsum, slag, etc. as the main raw materials, adding an appropriate amount of gassing agent, regulator, bubble stabilizer, and stirring, pouring, static stopping, cutting and high-pressure steaming and curing.