High Density Microsilica Supply(graininess)
we now supply microsilica in partical size, that is a high density product, covers the ranges SiO2 85%~95%, that can be uesd as HPC additives, refactory materials, ect.
1. The basic physical properties
the B. E. T Fineness: 15~27 m2/g
the bulk density: 650~720kg/m3
the activity target: 90%--110%
the water requirement: > 25%
2. The main chemical properties of microcilica is SiO2, other elements include Fe2O3, Al2O3, CaO, KO2, MgO and so on.