15m2/G Micro Silica Fume 92.5% SiO2 Dense Castables Improved Flow
White Zirconia Microsilica Silicafume for Refractories/Shotcrete/Concrete/Cement/Aggregates
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. Its production is very small, and it can be used in superfine fillers with high whiteness requirements, such as grout, sealant, repair agent and so on.
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. Lower the ingress of movement of water or chemicals
4. Characteristics
1. High whiteness.
2. High purity and fluidity.
3. Excellent suspension performance.
4. Good reinforcement performance.
5. improves the properties of both fresh and hardened concrete
5. Package
Customerized.
6. Applications
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 micro silica fume is 1800 degrees, higher than the ordinary micro silica fume, so in the refractory industry, white micro silicon powder is more popular.
Improve the mechanical performances of concrete.
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