How much is the fiber cement board? Specifications, classification, performance comprehensive analysis!

1. Common specifications: Length: about 2400mm-3000mm; Width: about 900mm-1200mm; Common thickness: about 4.5-18mm, currently in the domestic thickness can extend about 4mm-30mm; The size of the domestic board is generally 1200×2400 or 1220×2440, the former is the domestic general standard, the latter is the international general standard. Other smaller sizes can be cut arbitrarily,

2. Common density: according to density, it can be divided into three density categories: high, medium and low. The edge of low density board is rough after cutting, and the edge of medium and high density board is neat after cutting. The thermal insulation and sound insulation performance of fiber cement board with different specifications and thicknesses are different. Low density is about 0.9-1.2g/cm3, medium density is about 1.2-1.5g/cm3, high density is about 1.5-2.0g/cm3.

1. Divide by density

The cement fiberboard of our country at present, according to the national building trade standard, can be divided into two categories; The disadvantage of high density fiber cement board is easy to deform, and the deformation coefficient of medium and low density products is smaller. Usually classified as high, medium, low three, low density is generally used for low-grade building ceiling partition wall and other parts, medium density is generally used for low-grade building partition wall ceiling, high density is generally used for high-grade building steel structure exterior wall, steel structure floor, etc.

2. Divide by pressure

There is no pressure plate and pressure plate, medium and low density of cement fiber board is no pressure board, high density is pressure board.

1, fire insulation: non-combustible grade A, the board will not burn when the fire occurs, will not produce toxic smoke; Low conductivity makes it an ideal insulating material.

2, waterproof and moisture-proof: in the semi-open air and high humidity environment, can still maintain the stability of performance, not easy to sink or deformation.

3, thermal insulation: low thermal conductivity, good thermal insulation performance, good sound insulation products.

4, light weight and high strength: the plate pressurized by 5000 tons of flat oil press, not only high strength, and not easy to deformation, warping; Small weight suitable for roof partition wall and ceiling, etc.

5, simple construction: dry operation mode, keel and plate installation and construction is simple, fast. Deep processing products also have the characteristics of simple construction.

6, long life: strong weather resistance, will not be damaged by moisture or insects and ants, and the strength and hardness with time and enduring, with the building life.

1, low density board: only suitable for areas not directly affected by the sun, rain and snow.

2, medium density board: suitable for areas that may be directly affected by the sun and rain, generally not used in frozen areas.

3, high density board: suitable for areas that may be directly affected by the sun, rain and snow.