Low Permeability Micro Silica Fume 320kg/m³ 85.4% For Motar Admixture
85% Undensified Microsilica Fume For Insulation Materials, Large Concrete Projects, Mortar, Pipe, Piles etc.
1. 85% Undensified Microsilica Fume Introduction
85% undensified Microsilica fume powder is black or gray in color, and is available in several product forms and packaging options. Our Undensified Silica Fume products Bulk density: 320-360kg/m³.
2. 85% Undensified Microsilica Fume Specifications
| Analysis | Result | ||||
| SF85 | SF88 | SF90 | SF92 | SF94 | |
| SiO2(%) | 86.15 | 88.65 | 91.58 | 93.68 | 96.92 |
| 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. 85% Undensified Microsilica Fume General Advantages
● Lowers concrete permeability.
● Significantly increases concrete durability.
● Increases ultimate strength gain.
● Beneficial in all types of high strength concrete applications.
● Improves bond strength to steel.
● Significantly reduces alkali-silica reactivity.
● Provides excellent resistance to sulfate or seawater attack.
4. 85% Undensified Microsilica Fume Characteristics
1). Appearance is as grey&white off.
2). High electrical resistivity
3). Low Permeability
4). Superior resistance to chemical attack from chlorides,acids and sulfates
5). Low chloride ion diffusion
6). High reactive Pozzolan
7). High temperature strength
8). Improved stability ingeothermal environment
5. 85% Undensified Microsilica Fume Applications
Mainly used in unshaped refractory materials, construction, ceramics, pigments and chemical industrial, etc.
Used in the construction of cement concrete: which can reduce the dosage of cement concrete, eliminating material segregation and improve the concrete strength, enhance the wear resistance and durability, improve corrosion of steel, etc.
Used in monolithic refractories: which can effectively reduce the water addition, good thixotropy, and low temperature combination effect, is the ideal combination of agent, binder, additives and performance improvement of blending.
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