product introduction 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... ...

Silicon Dioxide(SiO₂)amorphous(%) >85%;
Moisture(%)<=1.5%;
Loss on lgnition(LOl%)<=3%;
Al₂O₃(%)=0.45%;
... ...