SIO2 90%min LOI 3%max H2O 1.0%max powder or granule grey colour or light grey as customer favor Microsilica also known as Silica fume, it is a very fine pozzolanic material, composed of amorphous silica produced by electric arc furnace as a by product of the production of...

we made of ash machines by ourself collect ash do impprocess in bulk,raw material densify150-200kg/M3, it became 500kg/m3 Our technical engineers  are invented and researched the machines andchoices some  of good silicon metal plants and Ferrosilicon factories...

Microsilica is amorphism dusty SiliconDioxide. got the byproduct When melting the Ferrosilicon or the industrial silicon metal Microsilica or Silica Fume, is amorphism dusty Silicon Dioxide. When melting the Ferrosilicon Or the industrial Silicon, the Silicon steam is expelled...

Microsilica for concrete has extremely strong surface active. lower permeability, paper bags can be dissolve when in water Micro silica( Silica fume), be used in concrete. it can be  improve concrete’s properties such as compressive strength, bond strength...

by-product-raw materials from Silicon metal.would like to accept to SGS. LOI <4% PAI >=130% H2O<3% CL<0.05 Microsilica (Silica fume) used in concrete and refractory.it can be improve concrete's properties such as compressive strength, bond strength...