Refractory Micro silica/Silica fume in refractory is a highly effective pozzolanic material.
Refractory Micro silica/Silica fume Another Feature : Refractory
Refractory Micro silica/Silica fume is a very fine pozzolanic material, composed of amorphous silica produced by electric arc furnaces as a byproduct of the production of elemental silicon or ferro silicon alloys. Micro silica/Silica fume is also called as silica fume, fumed silica, silica dust, which is widely used in concretes field and refractorys field. The Micro silica/Silica fume used in refractory has a minimum of 94% content of silica.And this densified Micro silica/Silica fume reaches national first grade standard,80% of granularity is less than 0.1 um with a maximum of 0.3 um.
Application of Refractory Micro silica/Silica fume in Refractory
Refractory Micro silica/Silica fume in refractory is a highly effective pozzolanic material. The functions of adding Micro silica/Silica fume are as follows:
Enhancing the fluid of pouring refractory
Reducing the volume of used water
Easy to shape
Raising the production efficiency
Microstructure for gap filling
Rising the compact and intensity of refractory
Enhancing elevated temperature strength and thermal shock of refractory.
Minimizes rebound loss
Specification of Refractory Micro silica/Silica fume in Refractory
Analysis | Result | Result | Result |
SF95 | SF96 | SF97 | |
SiO2(%) | 95.50 | 96.50 | 97.30 |
H2O(%) | 1.4 | 0.8 | 0.6 |
Loss on Ignition | 2.0 | 1.0 | 0.8 |
Cl(%) | 0.09 | 0.09 | 0.07 |
Bulk Density (kg/m3) | 300-400 | 300-400 | 300-400 |
Used Field of Refractory Micro silica/Silica fume in Refractory
High performance refractory castable pre-formed shape
Large scale iron runner, steel ladel and air brick
Gravity refractory castable drying wet jet material
Oxide combined Silica Carbide product
High temperature calcium silicate light heat-insulating material
High temperature and abrasion-proof material or products
Corundum and ceramic products
Sialon combined products
