Microsilica, also known as silica  fume, it is a very fine pozzolanic material, composed of amorphous silica produced  byelectric arc furnaces as a byproduct of the production of elemental silicon  or ferro silicon alloys.Microsilica can be used in a variety of cementitious products such as concrete,grouts,and mortars as well as elastomer,  polymer,refractory, ceramic and rubber applications.

Specification:

 SiO2   94.69.0%

Fe2O3  0.06%

Al2O3  0.22%

CaO   0.21%

LOI    2.82%

Moisture 0.13%

Pozzolanic Activity Index: 130%

Bulk Density: 610kg/m3

 Packing 900 kg bag, 2 bags on a pallet and 18 Mt in 20" FCL