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92% Undensified Silica Fume
| Place of Origin: China | Color: Grey |
| Existing Form: Powder | SiO2: ≥92.0% |
| Bulk Density: 280-350kg/m3 | Specific Surface: 15-30m2/g |
| Package: 25kg/ plastic bag OR 500kg/ jumbo bag | Application: Oilfield cementing, shotcrete, concrete admixture |
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92% Undensified Silica Fume OR Microsilica 92U 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.
We are one of the leading silica fume manufacturers in China, we provide 85%-96% densified silica fume and undensified silica fume powder to our customers, our quality is equal to elkem microsilica and sika fume, good silica fume could help you make perfect products and improve your business ROI, contact us for a good microsilica price silica fume price & advice.
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92% Undensified Silica Fume Has The Following Features:
● 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.
| 92% Undensified Silica Fume | |||
| Analysis/ Properties | Limits | ||
| SiO2 | Silicon Dioxid Amorphous | Min | 92% |
| C | Carbon | Max | 2.00% |
| Fe2O3 | Iron Oxide | Max | 1.00% |
| Al2O3 | Aluminium Oxide | Max | 2.00% |
| CaO | Calcium Oxide | Max | 1.20% |
| MgO | Magnesium Oxide | Max | 0.50% |
| K2O | Potassium Oxide | Max | 1.50% |
| Na2O | Sodium Oxide | Max | 0.50% |
| H2O | Moisture, As Packed | Max | 1.00% |
| Loss on Ignition At 975 C | Max | 3.00% | |
| Coarse Particles >45µm (325Mesh) | Max | 1.00% | |
| PH Value(Fresh) | 4.5-7.5 | ||
| Bulk Density(As Packed) | 200-350kg/m3 U | ||
(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
