micro silica powder

Function of micro silica powder:

Improve concrete strength, compactness, wear resistance and erosion resistance, and significantly improve pumping performance,

Widely used in marine engineering, water conservancy seaports, subways, tunnels, bridges, high-rise buildings, chemical engineering,

Improve the fluidity and density of refractory materials, and significantly improve the high-temperature strength and thermal shock resistance of refractory materials


Micro silica powder


Microsilica fume (scientific name "silica fume", Microsilica or Silica Fume), is an amorphous, powder obtained by oxidizing the silicon vapor discharged from the flue during the smelting of ferrosilicon alloy or industrial silicon, and then collected by a specially designed dust collector Shaped silicon dioxide (SiO2). The average particle size of micro-silica powder is 0.15~0.20μm, the specific surface area is 15000~20000m2/kg, and it has strong surface activity. In the past 20 years, micro-silica fume has been widely used in construction, chemical, metallurgy and other fields at home and abroad. A large amount of micro-silica fume is mainly used as cement or concrete admixture to improve the performance of cement or concrete. It is formulated with super high strength (above C70), wear resistance, erosion resistance, corrosion resistance, penetration resistance, frost resistance, and early strength The special concrete is used in dams, large reservoirs, hydropower, seaports, railway bridges, highways, airport runways, tunnels and super high-rise buildings. At the same time, micro-silica powder can also be used in the production of refractory materials and ceramic products to improve the strength and durability of the products; used in paint, coatings, resins, rubber and other polymer material fillers, can play a role in improving the overall performance of materials purpose.