Calcium Silicate Board: Raw Materials, Advantages, and Disadvantages

Introduction
Calcium silicate board, fully known as fiber-reinforced calcium silicate board, is manufactured through a high-temperature, high-pressure biochemical reaction between siliceous and calcareous materials. This process produces calcium silicate dominated by tobermorite crystals. The typical raw materials include quartz sand (silica source), cement and lime (calcium sources), and cellulose fiber as reinforcement.
The content of tobermorite crystals is influenced by the raw material composition and ratios. Higher silicon and calcium content generally leads to more tobermorite formation, resulting in better physical properties of the final product.

Advantages of Calcium Silicate Board

1. Excellent Fire Resistance
   Class A non-combustible material. In case of fire, it does not burn or emit toxic smoke.

2. Superior Waterproof Performance
   Highly resistant to moisture, maintaining structural stability in high-humidity areas such as bathrooms without swelling or deformation.

3. High Strength
   Durable and reliable, resistant to damage and breakage.

4. Good Thermal and Acoustic Insulation
   Provides effective thermal insulation and soundproofing.

5. Long Service Life
   Stable performance, resistant to acid, alkali, corrosion, moisture, insects, and pests, ensuring long-term durability.

Disadvantages of Calcium Silicate Board

1. Difficult to Modify After Installation
   Once installed, it is challenging to alter or replace partitions made from calcium silicate board.

2. Installation Complexity and Cost
   Typically requires metal framing, making installation more labor-intensive and costly compared to some alternatives.

Applications of Calcium Silicate Board

• Interior Applications: Ceilings, partition walls, home decoration, furniture lining, billboard backing, ship bulkheads, warehouse panels, raised floors, and tunnel linings.

• Commercial and Public Spaces: Shopping malls, hotels, entertainment venues, hospitals, theaters, train stations, and subway stations.

• Industrial Uses: Factory and warehouse buildings, road sound barriers, ventilation ducts, and industrial panels.

• Specialized Functions: Sound-absorbing walls and ceilings, cast walls, and composite wall panels.