MICRO SILICA
Micro Silica, also known as Silica Fume, is a by-product of silicon and ferrosilicon alloy production. It is an ultrafine, amorphous form of silicon dioxide (SiO₂), with particles approximately 100 times smaller than cement grains. Our Micro Silica contains 95% pure SiO₂, offering high performance in industrial applications.
Cement and Concrete Industry
In cementitious applications, Micro Silica acts as a pozzolanic material, significantly improving concrete properties:
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Increased Compressive Strength: Reacts with calcium hydroxide to form additional C-S-H gel, making concrete stronger and denser.
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Reduced Permeability: Offers superior resistance to water and chemical ingress, making it ideal for dams, bridges, and tunnels.
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Enhanced Durability: Extends service life in aggressive environments such as marine or sulfate-rich areas.
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Improved Workability: Helps in producing high-performance and self-compacting concretes.
Refractory Industry
Micro Silica is a key additive in refractory castables, offering several benefits:
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Improved Strength & Durability: Enhances cold and hot strength, increasing the lifespan of refractory linings.
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Reduced Permeability: Finer particles fill in pores, resulting in dense, low-porosity structures.
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Thermal Stability: Enhances resistance to thermal shock and slag attack.
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High Temperature Performance: Suitable for linings in furnaces, ladles, and tundishes in steel, glass, and non-ferrous metal industries.
Usage Areas
1. Concrete Industry
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High-Performance Concrete: Micro silica is used to produce high-strength concrete and improve its durability and longevity.
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Marine Structures: It enhances the resistance of concrete to chloride penetration, making it ideal for marine environments.
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Bridges and Highways: It is used to improve the mechanical properties and durability of the concrete used in bridges and highways.
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Industrial Floors: Improves the abrasion resistance and reduces permeability, making it suitable for heavy-duty industrial floors.
2. Refractory and Ceramic Products
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Refractory Castables: Micro silica is used to produce refractory castables with high strength and low porosity, which can withstand high temperatures.
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Ceramics: It is used to enhance the mechanical properties and durability of ceramic products.
3. Oil and Gas Industry
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Well Cementing: Used as an additive in oil well cementing to improve the strength and durability of the cement under high-temperature and high-pressure conditions
4. Construction Industry
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Shotcrete: Micro silica is used in shotcrete to improve its bond strength, reduce rebound, and enhance durability.
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Repair Mortars: It is used in repair mortars to improve their bond strength and durability.
5. Chemical Industry
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Silicon Carbide Production: Micro silica is used as a raw material in the production of silicon carbide.
6. Rubber and Plastics
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Filler Material: It is used as a filler material to improve the mechanical properties and durability of rubber and plastic products.
7. Environmental Applications
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Waste Treatment: Micro silica is used in treating industrial effluents and solid waste to reduce heavy metal contamination and improve the stability of the treated material.
