700Kg/M3 92% Undensified Micro Silicafume Powder Lowes Concrete Permeability
92% Densified Micro Silicafume for High-strength Concrete, Oil Field Cementing, Bridges, etc.
1. Micro Silica Fume Introduction
92% Undensified Silica Fume is a pozzolanic material that consists primarily of fine silicon dioxide particles in a non-crystalline form, the min silicon dioxide (SiO2) is 92%. Our 92% undensified microsilica is strictly complied with ASTM C-1240 silica fume standard. Microsilica 92U is an undensified dry powder microsilica silica fume admixture for Portland cement concrete and mortars.
2. Specifications
| Analysis | Result | ||||
| SF85 | SF88 | SF90 | SF92 | SF94 | |
| SiO2(%) | 86.12 | 88.52 | 91.53 | 93.65 | 96.96 |
| 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
● 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.
● Reduces steel corrosion.
● Improves freeze/thaw durability of concrete.
4. Package
25kg/ plastic bag, 950kg/ jumbo bag,1000kg/ jumbo bag
5. Applications
(1). 92% Undensified Silica Fume Used In Concrete
● Increacing strength
● Increasing density
● Frost resistance
● Early strength
● Abrasion resistance performance, anti-cavitations
(2). 92% Undensified Silica Fume For Cement
● Strengthens the fibre cement product.
● Increases the packing density of the cement matrix.
● Thereby enhance the durability of the fibre cement product.
● Enhances the plasticity of the fresh mix.
● Increases the bending strength of fibre reinforced cement
(3). 92% Undensified Silica Fume For Refractory
● Instead of aluminum oxide to be used as refractory material
● As additive in amorphous and shappely refractory products, greatly improved products strength and high temperature performance.
● As casting combination accelerators in integral teeming ladle
● Agglomerating agent, agglutinant, accelerator and additive in other refractory products..
(4). Other Applications Of 92% Undensified Microsilica
● Rubber industry
● Anti-caking industry
● Pellet binder
● Waterglass industry
● Shotcrete
● Self-Compacting Concrete
● Mining & Tunnelling.
● High rise buildings.
● For producing all concrete products including readymix concrete.
● Motorways, bridges & dams etc.
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