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Product Details:
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| Material: | White Silicafume | SiO2: | 92% |
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| Grade Standard: | Shotcrete | Appearance: | Power / Granular |
| Specific Surface: | 15m2/g | Al2O3: | 0.21 |
| High Light: | Shotcrete Micro Silicon Powder,92% Micro Silicon Powder,92% Zirconia Silica Fume |
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Zirconum White Microsilica Fume Powder for Refractories/Shotcrete/Concrete/Cement/Motar Industries
1. White Micro Silica Fume Introduction
White micro silica fume (powdery) is a very rare micro silicon powder. It is very strict on the raw material and production process and it can be used in superfine fillers with high whiteness requirements, such as grout, sealant, and repair agent so on. It improves the properties of both fresh and hardened concrete. The most important property is the permeability, Lower the ingress of movement of water or chemicals; lower the adverse reactions such as sulfate attack, the reaction between silica fume and the calcium hydroxide, released as the cement hydrates, provides a dense impermeable pore structure. The temperature of the white fume silica is 1800 degrees, higher than the ordinary microsilica fume, so in the refractory industry, white micro silicon powder is more popular. Improve the mechanical performances of concrete. The Silica fume reacts with the cement paste to form additional strong Calcium Silicate Hydrate (CSH) providing higher strength. Silica fume reduces bleeding and enhances the cement paste bond to the aggregates. Thanks to its pozzolanic effect (reaction with Ca(OH)2 ), and therefore to the strength improvement.
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
a. Dense castables
b. Improved flow
c. Hot strength
d. Strength during heat-up
4. Characteristics
1) Fine granularity.
2) Narrow particle distribution.
3) Large surface area.
4) Excellent suspension performance.
5. Package
Customerized.
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.
Contact Person: Jason Chen
Tel: 86-18603794999
