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92% Densified Silica Fume
| Place of Origin: China | Color: Grey |
| Existing Form: Powder | SiO2: ≥92.0 |
| Bulk Density: 550-700kg/m3 | Specific Surface: 15-27m2/g |
| Package: 25kg/ plastic bag, 950kg/ jumbo bag，1000kg/ jumbo bag | Application: High-strength concrete, oil field cementing, bridges, etc. |
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92% Densified Microsilica ( Silica Fume Grade 92 ) 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% condensified silica fume is strictly complied with ASTM C-1240 silica fume standard.
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 grade 920D and sika fume, high quality silica fume could help you make perfect products and improve your business ROI, contact us for a good microsilica price silica fume price & advice now!
Tags: 92% Densified Silica Fume, 92% Densified Microsilica, Silica Fume Grade 920D, Microsilica Grade 920D, Concrete Silica Fume, Silica Fume Cement, Silica Fume Admixture, Micro Silica Used In Concrete, Silica Fume Concrete Mix Design, Silica Fume Concrete PPT, Silica Fume For Sale, Silica Fume Admixture.
Micro Silica Used In Concrete Has The Follwing Performance:
Strength Economy:
● Increased compressive strength.
● Increased flexural strength.
● Greater strength development.
● Potentially smaller structural section.
● Less rebound & wastage in shortcreting increase productivity.
● Cement replacement opportunities.
Durability General:
● 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.
| 92% Densified Microsilica | |||
| 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) | 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
