What is the difference between the appearance of calcium silicate board and cement board?

The difference between calcium silicate board and cement board two materials:

1.The difference between raw materials: calcium silicate board has a relatively small cement content and replaces cement with sand and fly ash. The cement content of the cement board is naturally much higher than that of the calcium silicate board, so the durability of the board is better.

2.The difference in the molding process: the cement board is pressed by a press, and the calcium silicate board is made by high temperature and high pressure autoclaving.

3.The difference in properties: calcium silicate board is a chemical product through chemical reaction, and cement board is just a physical product modified by physical properties.

4.The difference in density: the density of fiber cement board is higher than that of calcium silicate board, the density of calcium silicate board is around, the density of cement board is above, and the density is not the same.

5.The difference in color: the color of the cement pressure plate is the same color as the color of the cement, while the color of the calcium silicate board is white.

6.The difference in thickness: the conventional thickness of calcium silicate board is about 6-12mm, the thickness of cement board can be done, the maximum thickness range of calcium silicate board is 4-30mm, and the thickness below 4mm and above 30mm can not be made.

It is good to use calcium silicate board, because the difference between calcium silicate board and cement pressure plate is mainly that the calcium silicate board is treated with high temperature and high pressure during the production process, so it will not be deformed in use, and the cement pressure plate is naturally cured in the production process and has not been treated with high temperature and high pressure, so it is best to use calcium silicate board for exterior walls.

1.The difference in raw materials: Portland board has less cement content, and sand and fly ash are used instead of cement. The cement content of the cement board is naturally much higher than that of the calcium silicate board, so the durability of the board is better.

2.The difference between the molding process: some cement boards are pressed by presses, while calcium silicate boards are autoclaved at high temperature and high pressure.

3.The difference in performance: calcium silicate board is a chemical product through chemical reaction, while cement board is only a physical product modified by physical properties.

4.Difference in density: The density of fiber cement board is higher than that of calcium silicate board. The density of calcium silicate board is around, and the density of cement board is above. Different densities have different uses.

5.Color difference: The color of the cement pressure plate is the same as that of cement, while the color of the calcium silicate board is white.

Generally, calcium silicate board is used for interior walls, and fiber cement board is used for exterior walls.

Calcium silicate board is green and environmentally friendly: it does not contain harmful fibers, dust and any harmful radiation, and can be widely used in various buildings. Size:

The wet expansion and dry contraction of the plate should be controlled within the ideal range. The main component is inorganic material and is non-flammable. When the heating temperature is above 1000 and the heating time is more than 1 hour, the wall will not be damaged and will not produce toxic smoke.

Excellent moisture-proof performance, in high-humidity places such as laundry rooms, it can still maintain stable performance, no expansion, no deformation. Lightweight and high-strength: light weight, suitable for partition walls and ceilings of high-rise buildings and soft ground buildings.

It has good bending strength, screw pull-out force, vertical tensile strength, and impact resistance. When used as partition walls and ceilings, it has reliable sturdiness and durability.

The basic components of fiber cement board are cement, river sand, plant fiber, water and other additives. The cement board is free of asbestos, fiberglass and formaldehyde. Nature is stable, does not deform, does not crack, does not rot, does not delaminates.

Even if exposed to humid air for a long time, it will not corrode. So it is more suitable for exterior walls.

Calcium silicate board is not a cement board. The differences between calcium silicate board and cement board are as follows:

1. The implementation standards are different.

The cement flat implements the building materials industry standard JC cement flat "standard";

Calcium silicate board implements the building materials industry standard JC T564 "calcium silicate board" standard.

2. The raw materials are different.

The cement slab is made of organic synthetic fiber, inorganic mineral fiber or cellulose fiber as the reinforcing material, and the cement or cement is added to the siliceous and calcareous material to replace part of the cement as the cementitious material, and the plate is cured by molding, steam or high-pressure steam.

The raw materials are required to contain no asbestos, and the total amount of siliceous and calcareous materials does not exceed 80% of the total amount of cementitious materials;

Calcium silicate board is a plate made of fiber as reinforcing material, mixed material of siliceous material and calcareous material (a small amount of cement can also be mixed into cementitious material) as the base material, and is formed and autoclaved cured. There is no requirement for the proportion of siliceous and calcareous materials in the total amount of cementitious materials.

3. The performance is different.

Cement slabs have higher moisture resistance than calcium silicate boards.

In the "JC cement slab" standard, the impermeability requirements and water absorption requirements are made for the plates above medium density;

JC T564 "Calcium Silicate Plate" standard does not have any requirements for water absorption, only for plates with densities higher than above.

The mechanical properties of the fiber cement board are higher than those of the same grade of calcium silicate board, and the flexural strength index of the cement plate in the "JC fiber cement slab" standard requires the detection of the strength in the air dry state and the saturated water state.

The flexural strength of the calcium silicate board in the JC T564 "calcium silicate board" standard only requires the test of the drying state (105 degrees). (This item can fully explain the difference between the waterproof requirements of the two boards).

Dear, hello, according to your question, I will give you an inquiry that calcium silicate board and calcium silicate board are both building materials, but their composition and properties are different. Calcium silicate board is made of materials such as calcium silicate, magnesium silicate of Qi orange, while calcium silicate board is made of materials such as calcium silicate and annihilated cellulose. When it comes to bonding cement, calcium silicate board and calcium silicate board also perform differently.

The surface of the calcium silicate board is relatively smooth, and it is not easy to bond with cement, so it is necessary to coat a layer of adhesive high modification compound on the surface in order to better combine with cement. Calcium silicate boards, on the other hand, have a rougher surface and are better able to bond with cement without the need for additional adhesives. Therefore, from the point of view of cement-bonding, calcium silicate board is easier to bond and stronger than calcium silicate board.

Of course, this also depends on the specific use case and construction method. When choosing a material, there are other factors that need to be taken into account, such as fire resistance, moisture resistance, sound insulation, and many more.