Refractory silica fume

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

Refractory silica fume