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High Purity Silica Fume Powder 95% SiO2 Ultra Fine Microsilica Powder for Concrete Reinforcement and Refractory Materials
High Purity Silica Fume Powder with 95% SiO2 content is an ultra-fine microsilica powder made from high-quality silicon materials. Featuring excellent pozzolanic activity, high purity, and superior filling performance, it improves the strength, density, durability, and chemical resistance of concrete. Widely used as a high-performance concrete admixture, refractory material additive, cement enhancer, and industrial mineral powder for construction and high-temperature applications.
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Product Description
High Purity Silica Fume Powder is a premium mineral admixture made from high-quality silicon materials collected during the production process of silicon metal and ferrosilicon alloys. With a high silicon dioxide (SiO2) content of up to 95%, this ultra-fine microsilica powder features excellent pozzolanic activity, high purity, and superior particle fineness. As a professional-grade silica fume powder, it is widely used in concrete reinforcement, high-performance concrete, refractory materials, cement-based products, and various industrial applications.
Silica Fume Powder, also known as Microsilica Powder, is an extremely fine mineral powder with an average particle size much smaller than ordinary cement particles. Due to its unique physical properties and high SiO2 content, silica fume can effectively fill the tiny gaps between cement particles, improve the density of concrete structures, and enhance overall mechanical performance. The ultra-fine structure of silica fume powder makes it an ideal material for improving strength, durability, and resistance in modern construction projects.
Our High Purity Silica Fume Powder is carefully processed through advanced collection, purification, and grinding technology to ensure stable quality and consistent performance. The product has excellent dispersibility, low impurity content, and reliable chemical stability, making it suitable for demanding applications in construction, metallurgy, refractory production, and specialty materials.
Product Advantages
High SiO2 Content and Excellent Purity
The main component of our silica fume powder is silicon dioxide (SiO2), with a content reaching 95%. High SiO2 content provides excellent chemical activity and improves the performance of concrete and refractory materials. The high purity silica fume powder helps enhance bonding strength, reduce porosity, and improve the overall quality of finished products.
Ultra Fine Particle Size and Superior Filling Effect
Silica Fume Powder has extremely fine particles, allowing it to fill micro pores and spaces between cement particles. This micro-filling effect significantly increases concrete density and reduces permeability. When used in concrete mixtures, microsilica powder improves workability, strength development, and long-term durability.
Enhanced Concrete Strength and Durability
High Purity Silica Fume Powder is widely used as a concrete admixture to produce high-performance concrete. The addition of silica fume can increase compressive strength, improve abrasion resistance, reduce water penetration, and enhance resistance against chemical corrosion. It is commonly applied in bridges, tunnels, high-rise buildings, marine structures, and infrastructure projects requiring superior concrete performance.
Excellent Refractory Performance
Due to its high SiO2 content, thermal stability, and fine particle structure, silica fume powder is an important raw material for refractory materials. It can improve the density, mechanical strength, and thermal shock resistance of refractory products. Silica fume is widely used in castables, refractory bricks, furnace linings, and other high-temperature applications.
Good Chemical Stability
Microsilica powder has excellent chemical stability and compatibility with cement, concrete additives, and refractory binders. It can improve the resistance of materials against chemical attack and harsh environmental conditions, extending the service life of construction and industrial products.
Environmentally Friendly Mineral Material
Silica Fume Powder is a recycled mineral material produced from industrial processes. Its utilization helps reduce waste emissions and supports sustainable construction practices. It is an environmentally friendly additive widely accepted in modern building material industries.
Product Specifications
Item |
Specification |
Product Name |
High Purity Silica Fume Powder / Microsilica Powder |
Main Component |
Silicon Dioxide (SiO2) |
SiO2 Content |
≥95% |
Appearance |
Grey Fine Powder / Light Grey Powder |
Particle Size |
Ultra Fine Powder |
Average Particle Size |
0.1-0.5 μm |
Moisture Content |
≤3% |
Loss on Ignition |
≤5% |
Bulk Density |
200-700 kg/m³ |
pH Value |
6-8 |
Grade |
Industrial Grade / Construction Grade |
Processing Method |
Collection, Purification, Fine Grinding |
Packaging |
20kg/25kg PP Bag, Jumbo Bag or Customized Packaging |
Application Fields
Concrete Reinforcement
High Purity Silica Fume Powder is mainly used as a high-performance concrete admixture. It improves concrete strength, density, durability, and resistance to water penetration. Microsilica powder is widely used in high-strength concrete, self-compacting concrete, and special engineering concrete.
Refractory Materials
Silica Fume Powder is an important additive for refractory products due to its excellent thermal stability. It improves the bonding performance and mechanical strength of refractory castables, furnace materials, and heat-resistant products used in high-temperature environments.
Cement Industry
Silica fume powder can be added to cement-based materials to improve hydration reactions and enhance structural performance. It helps produce stronger and more durable cement products.
Construction Engineering
High purity microsilica powder is widely applied in infrastructure construction, including bridges, highways, tunnels, dams, ports, and industrial floors. It helps extend the service life of concrete structures exposed to heavy loads and harsh environments.
Other Industrial Uses
Silica Fume Powder can also be used in ceramics, chemical materials, coating materials, and specialty construction products due to its excellent fineness, purity, and stability.
Why Choose Our Silica Fume Powder
We provide high quality High Purity Silica Fume Powder with stable chemical composition, reliable performance, and professional production technology. Our silica fume powder is strictly controlled during processing to ensure uniform quality and meet different application requirements.
With high SiO2 content, ultra-fine particle size, excellent filling ability, and strong reinforcement performance, our Microsilica Powder is an ideal choice for customers looking for high-performance mineral additives for concrete reinforcement and refractory materials.
Customized specifications, packaging options, and bulk supply services are available to meet the requirements of global customers. Whether used in construction projects, concrete production, refractory manufacturing, or industrial applications, our High Purity Silica Fume Powder provides excellent performance and long-term value.
