Zirconia White Silica Fume Powder , Microsilica Fume Refractories Grade
Zirconia White Color Micro Silica Fume Powder for Refractories/Shotcrete/Concrete/Cement/Motar
1. White Micro Silica Fume Introduction
Zirconia silica fume, a compound of zirconium dioxide, zirconium oxide melting products, also called silicon ash. This Zr silica fume is derived from the same zircon used to make fused Zirconia, and is captured from the furnace during the fusion process. It not only has the general characteristics of silica, but also has a certain amount of zirconia powder. Silica fume, also known as microsilica or silica dust,is a by-product of the reduction of high-purity quartz with coke in electric arc furnaces in the production of silicon and ferrosilicon alloys(ASTM C1240,EN13263),Its used in concrete field widely.
2. Specifications
| Analysis | Result | ||||
| SF85 | SF88 | SF90 | SF92 | SF94 | |
| SiO2(%) | 86.12 | 88.6 | 91.5 | 93.66 | 96.98 |
| Fe2O3(%) | 0.7 | 0.65 | 0.35 | 0.2 | 0.2 |
| Al2O3(%) | 0.38 | 0.26 | 0.22 | 0.2 | 0.2 |
| CaO+MgO(%) | 0.4 | 0.36 | 0.36 | 0.3 | 0.3 |
| K2O+Na2O(%) | 0.3 | 0.28 | 0.2 | 0.2 | 0.2 |
| Moisture(%) | 1.77 | 1.66 | 1.66 | 0.82 | 0.91 |
| Loss on lgnition(L.O.I)@975℃ (%) | 3.6 | 2.92 | 2.07 | 1.92 | 1.91 |
3. General advantages
1. Dense castables
2. Improved flow
3. Hot strength
4. Strength during heat-up
4. Characteristics
1)Fine granularity.
2)Narrow particle distribution.
3)Large surface area.
4)Excellent suspension performance.
5)Reinforcement of good performance.
5. Package
As required.
6. Applications
Application of White Microsilica
1. Lightweight high temperature calcium silicate insulation material; Electric kilns with corundum mullite puser; high-temperature resistant materials and products; corundum and ceramic products.
2. New wall materials, decorative materials, wall thermal insulation mortar, insulation mortar, interface agents.
3. Nano-silica sol, as active material for advanced environmental protection coating, fire protection and anti-corrosion coatings.
4. For mortar and concrete in : high-rise buildings, the harbor docks, dams, water culvert, railway public bridges, subways, tunnels, airport runways, concrete pavement and the coal mine tunnel shotcrete reinforcement.
5. In rubber, resin, paint, unsaturated polyester reinforced polymer materials used as fill material..
6. Powder processing on the surface of the wall of the building.
7. Additives of other active areas.
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