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(1) Raw materials and production process:

      Fiber Cement Board, also known as fiber-reinforced cement board, is a cement slab for construction produced from fiber and cement as the main raw materials. It is made through multiple processes such as pulping, molding, curing, and surface treatment. A new type of building material.

(2) Common specifications:

      Length: 2440mm

      Width: 1220mm

      Thickness: 6~12mm

(3) Material classification:

      1) Divided by fiber: adding asbestos fiber to increase strength is called "chrysotile fiber cement board", and replacing asbestos fiber with pulp, wood chips, and glass fiber to increase strength is called "non-asbestos fiber" Cement slab"; Eternit Guangzhou Building Systems Co., Ltd. produces all non-asbestos fiber cement boards, which can provide the international authoritative double certification of asbestos-free products and production workshops. 

      2) Divided by density: it can be divided into low, medium and high density, low density board is generally 0.9-1.2g/cm3, medium density board is generally 1.2-1.5g/cm3, and high density board is generally 1.5-2.0 g/cm3. Low-density board and medium-density board are generally used for indoor partitions and ceilings. Some thicker medium-density boards can be used for building floors, and high-density boards are generally used for building exterior walls.

      3) According to whether the board is pressurized or not: According to whether the board has been pressurized during the production process, it can be divided into "no pressure board" and "pressure board". Medium and low density fiber cement boards are generally non-pressure boards, high density Most of them are pressure boards, which can only be produced by a factory with a special press, which cannot be done by a factory without such equipment.

(4) Material performance:

      1) Light weight and high strength: After autoclaved curing, the board has light weight, high strength, stable performance, and is not easy to deform and warp.

      2) Fire insulation: It is a non-combustible A class material, the board will not burn when a fire occurs, and will not produce toxic smoke; it has low conductivity and is an ideal insulation material.

      3) Water and moisture proof: In semi-open air and high humidity environment, it can still maintain stable performance, and it is not easy to sink or deform.

      4) Heat insulation and sound insulation: low thermal conductivity, good heat insulation performance, the higher the product density, the better the sound insulation effect.

      5) Simple construction: Dry construction is adopted, and the installation and construction of the keel and plates are simple and quick.

      6) Easy processing: The boards are large in size and can be cut arbitrarily. The boards produced by some high-quality manufacturers can also be used for creative processing such as perforation, slotting and engraving, which greatly meets the requirements of design freedom.

      7) Durable and lasting: The board can be used in extreme climates with drastic changes in temperature and humidity, and is resistant to acid and alkali, corrosion, and strength and hardness will increase over time, resulting in a long service life.

Part of the source: Baidu Encyclopedia