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Microsilica ( Silica Fume) is a by product of producing silicon metal or ferrosilicon. The smoke that results from furnace operation is collected and sold as silica fume. Silica fume consists primarily of amorphous silicon dioxide (sio2) Silica fume approximately 100times smaller than the average cement particle.
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Specification:
Appearance: off-white powder
Silicon Dioxide (SiO2): 91-94%
Al2O3: 0.2-0.4%
Fe2O3: 0.1% max
Moisture: 0.5-1%
LOI: 1.3-1.8%
CaO : 0.13-0.18%
densified: 2.2times than original
Silica
