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96% Densified Silica Fume
| Place of Origin: China | Color: Grey |
| Existing Form: Powder | SiO2: ≥95.0 |
| Bulk Density: 550-700kg/m3 | Specific Surface: 15-27m2/g |
| Package: 25kg/ plastic bag, 950kg/ jumbo bag，1000kg/ jumbo bag | Application: Concrete, Refractory, High Performance Concrete, Oil and Gas Industry，etc. |
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Silica Fume ( Microsilica) is a co-product from the production of silicon or ferrosilicon metal. Silica fume is a mineral admixture, a very fine powder of spherical particles that average 0.1 to 0.3 microns in diameter with a surface area of 17 to 30m2/g.
Silica Fume ( Microsilica) is used in high performance concrete as a Pozzolan to improve its properties.
Tags: 96% Densified Silica Fume, 96% Densified Silica Fume Microsilica, Densified Silica Fume Grade 96, Densified Microsilica 96.
96% Densified Silica Fume Has the Following Features:
● Increased compressive strength.
● Increased flexural strength.
● Greater strength development.
● Potentially smaller structural section.
● Less rebound & wastage in shortcreting increase productivity.
● Cement replacement opportunities.
● Increased concrete density.
● Improved impremeability to agressive agent.
● Reduced susceptibility to sulphate attack & alkali-aggregate expansion.
● Improved cohesiveness reduces segregation & pumpability.
● Reduced bleeding allows early finishing.
● Improved finishing & electrical resistivity.
| 96% Densified Silica Fume | |||
| Analysis/Properties | Value | ||
| SiO2 | Silicon Dioxide, Amorphous | Min | 95% |
| Fe2O3 | Iron Oxide | Typical | 0.21% |
| Al2O3 | Aluminium Oxide | Typical | 0.08% |
| CaO | Calcium Oxide | Typical | 0.11% |
| MgO | Magnesium Oxide | Typical | 0.21% |
| K2O | Potassium Oxide | Typical | 0.32% |
| Na2O | Sodium Oxide | Typical | 0.24% |
| P2O5 | Phosphorus Pentoxide | Typical | 0.09% |
| MnO | Manganese Oxide | Typical | 0.04% |
| TiO2 | Titanium Oxide | Typical | 0.01% |
| Loss On Ignition | Typical | 2.63% | |
| Coarse Particles >45µm (325Mesh) | Max | 1.20% | |
| Bulk Density (As Packed) | 500-700kg/m3 D | ||
(1). Silica fume in Concrete
● Increacing strength
● Increasing density
● Frost resistance
● Early strength
● Abrasion resistance performance, anti-cavitations
(2). Silica fume in 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). Silica fume is used in 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 for Silica Fume:
● 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
