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Classification of the benefits of fiber cement tunnel slabs | fiber cement tunnel board

Classification of the benefits of fiber cement tunnel slabs | fiber cement tunnel board

Dec 03,2021

1. Divided by lining fiber

At present, most of the domestic use of asbestos fiber is used for reinforcement. This type of fiber cement board is called chrysotile fiber cement plate; the other is non-asbestos fiber, which uses pulp, wood chips, and glass fiber to replace asbestos fiber. The enhancement effects are collectively referred to as non-asbestos fiber cement slabs.

2. Divided by density

Low density 0.9-1.2g/cm3, medium density 1.2-1.5g/cm3 high density 1.5-2.0g/cm3. Low density is generally used for low-grade building ceiling partition walls and other parts, and medium density is generally used for mid-range building partition wall ceilings. , High density is generally used for steel structure exterior walls and steel structure floor slabs of high-end buildings; at present, my country's cement fiberboard is divided into two categories according to the national construction industry standards. The shortcomings of high-density fiber cement board are easy to deform, and the deformation coefficient of medium and low-density products should be smaller.

3. Points by pressure

  There are pressure plates and pressure plates. Low- and medium-density cement fiberboards are all non-pressure boards, and high-density cement fiberboards are pressure boards. Pressure plates are also called fiber cement pressure plates, which require special press production, which cannot be done by companies without presses. According to the density, the fiber cement pressure board is divided into: 1) ordinary board, density 1.5-1.75g/cm3; 2) superior board, density 1.75-1.95g/cm3; 3) premium board, density above 1.95g/cm3 .

4. According to thickness

  (1) Ultra-thin board, 2.5-3.5mm;

  (2) Conventional board, 4-12mm;

  (3) Thick plate, 13-30mm;

  (4) Super thick plate, 31-100mm.

  General manufacturers cannot produce ultra-thin plates and ultra-thick plates. This is also an important basis for measuring the production capacity and technical level of enterprises in the industry.
fiber cement tunnel board