Calcium silicate board is a new type of lightweight multi-purpose board, which is made of silicon materials (diatomite, bentonite, quartz powder, etc.), calcium materials (slaked lime, carbide slag), reinforcing fibers (asbestos, glass fiber), etc. The calcium silicate board is made by pulping, cultivation, steaming, surface sanding, and other processes. It has a wide range of uses and can be used as non-load-bearing partition walls and ceiling boards, and can also be used to make air ducts and lining boards as well as the compartment panels and partition panels of vehicles and ships, and other places with heat insulation requirements.
| Item | Calcium Silicate Insulation Board | |||
|---|---|---|---|---|
| Maximum Use Temperature/℃ | 1000 | |||
| Chemical Composition | ω (SiO2)/% | 46-48 | ||
| ω (CaO)/% | 39-41 | |||
| ω (Al2O3)/% | 0.39-0.42 | |||
| ω (MgO)/% | 0.5-0.7 | |||
| Color | White | |||
| Bulk Density (kg/m³) | 230±10% | 250±10% | 270±10% | |
| Modules of Rupture ≥/MPa | 0.45 | 0.50 | 0.55 | |
| Compressive Strength ≥/MPa | 0.75 | 0.85 | 0.95 | |
| Permanent Linear Change/% | 1000℃*16h ≤ 2.0 | |||
| Thermal Conductivity Coefficient ≤/[W/(m·K)] | 100℃ | 0.065 | 0.067 | 0.072 |
| 200℃ | 0.075 | 0.077 | 0.082 | |
| 400℃ | 0.091 | 0.096 | 0.103 | |
| 600℃ | 0.132 | 0.136 | 0.138 | |
Calcium silicate board is made of a light material structure with low density and weight, which makes it more convenient in the process of handling, installation, and construction, and reduces the load on the building structure.
Although calcium silicate board is light in weight, its vertical tensile strength and impact resistance are high, and it can withstand certain pressure and load, making it a reliable structural material in buildings.
Calcium silicate board is an excellent fireproof material. It has a high melting point and good fire resistance, which can effectively resist the spread of flames and provide reliable protection in fires. This makes calcium silicate boards widely used in fireproof partitions, firewalls, and fireproofing devices in buildings.
Calcium silicate board is not easy to absorb moisture and get damp, and can effectively prevent the penetration and absorption of moisture. This makes the calcium silicate board maintain stable performance when used in a humid environment and is not prone to corrosion, mildew, and deformation.
Calcium silicate board can prevent heat conduction and loss, reduce heat loss and provide a good heat insulation effect. This allows the calcium silicate board to play an active role in keeping the indoor temperature stable, reducing energy consumption, and improving the energy efficiency of the building.
Mix the raw materials required for the calcium silicate board, silica, calcium oxide, reinforcing fiber, additives, etc. to form a uniform slurry.
Pour the slurry into molds of the desired size and shape. Spread the slurry evenly in the mold and drain the excess water. This operation applies pressure to compact the slurry and remove trapped air.
The formed mold is placed in a hydraulic press, applying pressure to further compact the slurry and remove excess water. The pressing process helps to achieve the density and strength required for calcium silicate boards.
After pressing, the boards go through a high-temperature solidifying process. The curing process promotes a chemical reaction between the ingredients to form the calcium silicate crystals that bond the boards together.
After the solidifying process is complete, the boards are then cut to the desired size using a saw or other cutting device. Sand or grind at the same time for a smooth and even surface.
Calcium silicate board is widely used as a lining material for industrial furnaces.
Calcium silicate boards are used in the construction of kilns and ovens.
Calcium silicate boards are used to manufacture heat shields and enclosures in various fire-resistant environments.
Calcium silicon boards are often used in ship interiors, ship heat insulation, offshore platform installations, etc.
Calcium silicate board can be used in medical facilities mainly inward partitions, medical equipment heat insulation, sound insulation, acoustic control, etc.