Silica-Sand-700-Microns
Silica-Sand-700-Microns
Silica Sand with a particle size of 700 microns is a coarse-grade material used in specialized applications where larger particle size and high silica content are required. Its durability and uniform size distribution make it ideal for heavy-duty industrial and construction applications.
Key Properties of Silica Sand (700 Microns):
Particle Size:
- Coarse grade: 700 microns (passes through a 25-mesh sieve).
- Graded to ensure uniformity for specific applications.
Material Composition:
- High purity silica: Typically >95% SiO₂.
- Low levels of impurities such as iron oxide, alumina, and organic materials.
Physical Characteristics:
- Shape: Sub-rounded to angular grains.
- Specific Gravity: 2.6–2.7.
- Bulk Density: 1500–1600 kg/m³.
- Color: White to off-white, depending on source.
Chemical Properties:
- Silica (SiO₂): >95%.
- Iron Oxide (Fe₂O₃): <0.5%, depending on the source and processing.
Advantages of 700 Micron Silica Sand:
- Durability: Coarser grains improve load-bearing capacity in construction and filtration systems.
- Thermal Stability: Withstands high temperatures, making it suitable for refractory and foundry uses.
- Uniform Grain Size: Ensures consistency in industrial applications.
- Purity: High silica content enhances performance and longevity.
Standards and Testing:
Grading and Compliance:
- Meets requirements as per IS 383 (for construction aggregates) or other industry-specific standards.
- Sieve analysis ensures particle size distribution.
Chemical Analysis:
- Test for silica content and impurities to ensure suitability for intended applications.
Other Tests:
- Moisture Content: Should be minimal.
- Bulk Density and Specific Gravity testing.
Applications:
Construction:
- Used in concrete mixes as coarse sand for better strength.
- Filling and leveling material in construction projects.
Water Filtration:
- Acts as a coarse filtration media layer in multi-media water filtration systems.
Foundry Applications:
- Suitable for casting molds in foundries due to its thermal stability.
Industrial Abrasives:
- Used in sandblasting for surface preparation of metals and other materials.
Artificial Turf and Landscaping:
- Utilized as infill material to improve drainage and durability.
Refractories and Ceramics:
- Used as a raw material for firebricks and other heat-resistant products.