top of page

Calcined Clay 16/30

grade-16-30-calcined-clay-sand.jpeg

Calcined clay is a natural material that has been subjected to high temperatures (typically between 900°C and 1000°C) to induce certain physical and chemical changes. This process enhances its properties, making it suitable for a variety of industrial applications.

Specifications

The 16/30 designation typically refers to the particle size distribution of the calcined clay. Here, the numbers represent the mesh sizes through which the material has passed:

  • 16 Mesh: Particles that can pass through a 16-mesh sieve (1.18 mm opening).

  • 30 Mesh: Particles that are retained on a 30-mesh sieve (0.595 mm opening).

Physical and Chemical Properties

Physical Properties

​

  1. Particle Size: 0.595 mm - 1.18 mm

  2. Bulk Density: Approximately 60-65 lb/ft³ (960-1040 kg/m³)

  3. Color: Light brown to white

  4. Shape: Angular particles

  5. Hardness: High hardness due to calcination, improving abrasion resistance

Chemical Composition

​

  1. Silicon Dioxide (SiO2): 50-60%

  2. Aluminum Oxide (Al2O3): 20-30%

  3. Iron Oxide (Fe2O3): 2-5%

  4. Calcium Oxide (CaO): 0.5-2%

  5. Magnesium Oxide (MgO): 0.5-2%

  6. Potassium Oxide (K2O): 1-2%

  7. Sodium Oxide (Na2O): 0.1-1%

  8. Titanium Dioxide (TiO2): 1-2%

Applications

  • Oil and Gas Industry

  • Construction

  • Ceramics

  • Refractory Products:

  • Agriculture

  • Sports Turf and Landscaping

Conclusion

Calcined clay 16/30 is a versatile material with a wide range of applications in various industries due to its enhanced physical and chemical properties post-calcination. Its ability to withstand high temperatures, improved hardness, and porosity make it particularly valuable in demanding applications such as hydraulic fracturing and refractory manufacturing. Proper handling and storage are essential to maintain its quality and performance.

bottom of page