Package Micro Silica Silica Fume with High Quality
|Place of Origin: China (Mainland)||Brand Name: SX||Type: Silica Powder||Application: Ferroalloys|
|Grade: Silica Oxide Regular Fine -250||SiO2 Content (%): 2||Fe2O3 Content (%): 0.78||Al2O3 Content (%): 0.29|
|CaO Content (%): 0.39|
1.Silica fume 85%-98%
2.High electrical resistivity
3.Superior resistance to chemical attack
Micro silica for Concrete/Refractory
Microsilica , also called silica fume, is a byproduct of producing silicon metal or ferrosilicon alloys. Silicon metal and alloys are produced in electric furnaces. The raw materials are quartz, coal, and woodchips. The smoke that results from furnace operation is collected and sold as silica fume, rather than being land filled. Microsilica consists primarily of amorphous (non-crystalline) silicon dioxide (SiO2), its average granule diameter is 0.15~0.20 µm,specific surface area is 15000~20000 m2/kg, and it has extremely strong surface active.
- Very low permeability to chloride and water intrusion.
- Extremely high electrical resistivity (20 to 100 times greater than ordinary concrete).
- Increased abrasion resistance on decks, floors, highways and marine structures.
- Superior resistance to chemical attack from chlorides, acids, nitrates and sulfates.
Grey Densified and undensified Microsilica
|K2O+ Na2O (%)||0.29||0.24||0.22||0.20||0.20||0.20||0.20||0.20|
|Loss on Ignition (L.O.I) @975OC (%)||4.38||3.38||2.38||2.38||2.28||1.88||1.55||1.50|
|Packaging Detail:25kg/bag or customized package|
|Delivery Detail:7-10days after confirmation|