Calcium carbonate is widely used in the construction industry and is an essential component of cement, concrete, mortar, putty, gypsum products, and architectural coatings. The application of calcium carbonate not only enhances the performance of building materials and reduces costs but also improves the durability and aesthetics of buildings. Its primary applications include the following:

1. Cement Production

• Calcium carbonate is a crucial raw material for cement production. Limestone, whose main component is calcium carbonate, undergoes calcination to form calcium oxide (CaO), which is one of the main components of cement.

• During the cement production process, calcium carbonate not only supplies calcium but also acts as a fluxing agent, reducing the sintering temperature of cement clinker and thereby saving energy.

2. Concrete Aggregate

• Natural limestone, after being crushed and screened, can be used as an aggregate in concrete.

• Calcium carbonate aggregate has a certain level of strength and durability, enhancing the compressive strength and wear resistance of concrete.

3. Mortar and Putty

• Calcium carbonate powder can be used as a filler in mortar and putty, increasing volume and reducing costs.

• Additionally, calcium carbonate powder improves the water retention of mortar and putty, enhancing workability during application.

4. Gypsum Products

• Calcium carbonate can be used as a filler in gypsum products, increasing their strength and hardness.

• It also enhances the water resistance of gypsum products, prolonging their lifespan.

5. Architectural Coatings

• Calcium carbonate serves as a filler in architectural coatings, increasing coverage, improving adhesion, and reducing costs.

• Calcium carbonate enhances the weather resistance and abrasion resistance of coatings, extending their service life.

6. Other Applications

• Calcium carbonate is also used in decorative building materials, such as artificial marble and terrazzo.

• Calcium carbonate is applied in waterproof construction materials, including waterproof coatings and waterproof membranes.

Recommended Product: Light Calcium Carbonate