Microsilica (Silica Fume) is a co-product of the silicon metal and ferro silicon industry, is an amorphous silicon dioxide(SiO2) which is generated as a gas in submerged 

 

electrical are furnaces during the reduction of very pure quarta. This gas vapor is condensed in bag house collectors as very fine gray to off-white powder of spherical 

 

particles that average 0.14 microns in diameter. Microsilica(Silica Fume) is used in a varity of cementitious (concrete, grouts and mortars, such like parking garages, bridge 

 

decks, marine structures,slabs roadway), elastomer, polymer, refractory and ceramic applications. 

SiO2: 85-95% MIN. 

Al2O3:. 1% Max 

Ignition loss:4%max; 

Mositure: 1% Max 

+45 Micro: 5% Max 

 

 

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