Difference between fiber reinforced silicate board and calcium silicate board？

Fiber-reinforced silicate boards and calcium silicate boards are two different types of construction materials, distinguished by their composition and performance:

1. **Composition Differences:**

   - **Fiber-Reinforced Silicate Board:** Typically composed of silicate cement, fibers (such as cellulose or glass fibers), and other additives. The addition of fibers enhances the strength and toughness of the board.

   - **Calcium Silicate Board:** Primarily consists of silicate cement and fine silica particles. The strength of this type of board mainly comes from the hydration reaction of silicate cement.

2. **Strength and Durability:**

   - **Fiber-Reinforced Silicate Board:** Due to the inclusion of fibers, this type of board usually has higher tensile strength and impact resistance, making it suitable for applications requiring additional durability.

   - **Calcium Silicate Board:** While calcium silicate boards also possess a certain level of strength, they might not be as durable as fiber-reinforced silicate boards.

3. **Different Applications:**

   - **Fiber-Reinforced Silicate Board:** Owing to its higher strength and toughness, it is often used in applications that require withstanding significant impact or loads, such as walls, ceilings, and floors.

   - **Calcium Silicate Board:** Typically used in partition walls, ceilings, etc., where lighter loads are expected.

4. **Weight and Density:**

   - **Fiber-Reinforced Silicate Board:** Relatively lightweight due to the inclusion of fibers, yet still provides high strength.

   - **Calcium Silicate Board:** Generally lightweight, suitable for applications where lighter construction materials are needed.

In summary, the choice between these board types depends on specific application requirements and the structural demands of the building in question.