Concrete Admixture Silica Powder


What is silicon powder?

Silicon powder, also known as micro silicon powder, also known as "silica fume," is formed by collecting and treating the smoke and dust that escapes with the exhaust gas during the process of smelting industrial silicon and ferrosilicon in an industrial electric furnace at high temperature through a particular collecting device. The scientific name of silica fume is "silica fume," formed by collecting and treating smoke and dust that escapes from the exhaust gas during the high-temperature melting of industrial silicon and ferrosilicon in an industrial electric furnace through a particular capture device. In the escaping smoke and dust, the content of SiO2 accounts for about 90% of the total smoke and dust, with a tiny particle size and an average particle size of almost a nanometer, so it is called silicon powder. Silicon powder is a highly effective active admixture that can significantly improve concrete's strength, impermeability, frost resistance, and durability. The characteristics of silica fume concrete have received attention. Silica fume concrete is widely used in water conservancy, hydropower, construction, highway, and bridge projects.

Properties of silicon powder

Good insulation: Due to the high purity of silicon powder, low impurity content, stable performance, and excellent electrical insulation, the cured product has good insulation performance and arc resistance. It can reduce the exothermic peak temperature of the epoxy resin curing reaction and reduce the cured product's linear expansion coefficient and shrinkage rate, thereby eliminating the internal stress of the cured product and preventing cracking. Corrosion resistance: Silica powder is not easy to react with other substances and does not react chemically with most acids and bases. Its particles evenly cover the object's surface with strong corrosion resistance. The particle grading is reasonable and can reduce and eliminate sedimentation and stratification when used; It can enhance the tensile and compressive strength of the cured product, improve its wear resistance, increase its thermal conductivity, and increase its flame retardancy. The silica fume treated with silane coupling agent has good wettability to various resins, good adsorption performance, easy mixing, and no agglomeration. Adding silica fume as a filler to organic resin improves the cured product's properties and reduces production costs.


Uses of silicon powder

Silica fume is mainly used as an admixture for cement or concrete. Silica powder can improve the performance of cement or concrete and prepare special concrete with ultra-high strength (above C70), abrasion resistance, erosion resistance, corrosion resistance, permeability resistance, frost resistance, and early strength. It is used in dams, large reservoirs, hydropower, seaports, docks, railway bridges, highways, airport runways, tunnels, and high-rise buildings. At the same time, micro silicon powder can also be used in the production of refractory materials and ceramic products, improving the strength and durability of products; Used as a filler for paints, coatings, resins, rubber, and other high molecular materials, it can improve the comprehensive performance of materials. Silicon powder (also known as micro silicon powder) refers to amorphous and powdery silicon dioxide (SiO2) obtained during the smelting of ferrosilicon alloy or industrial silicon after the oxidation of silicon vapor discharged from the flue and collection by a specially designed dust collector. The average particle size of micro silicon powder is 0.15~0.20 μ m. The specific surface area is 15000~20000 m2/kg, with extreme surface activity.


Price of silicon powder

Silicon powder particle size and purity will affect the product's Price, and the purchase volume can also affect the cost of silicon powder. A large amount of large amount will be lower. The Price of silicon powder is on our company's official website.


Silicon powder supplier

Mis-Asia is a reliable and high-quality global chemical material supplier and manufacturer. It has over 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including silicon powder, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective silicon powder, you are welcome to contact us or inquire any time


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