Specifications
Silica fume1.Micro silica 85-98
2.High electrical resistivity and Low permeability
3.Superior resistance to chemical atta
Silica fume
1.Instruction
Silica fume is a byproduct of producing silicon metal or ferrosilicon alloys.It consists primarily of amorphous silicon dioxide (SiO2),its average granule diameter is 0.15~0.20 µm,specific surface area is 15000~20000 m2/kg.
2.Main Properties
- Very low permeability to chloride and water intrusion.
- Extremely high electrical resistivity.
- Increased abrasion resistance on floors,highways,marin structures.
- Superior resistance to chemical attack from chlorides,acids,sulfates.
3.Specification
Grey Densified and undensified Micro Silica fume
Analysis | Result | |||||||
SF85 | SF88 | SF90 | SF92 | SF94 | SF96 | SF97 | SF98 | |
SiO2(%)(min.) | 85.05 | 88.05 | 99.05 | 92.05 | 94.05 | 96.05 | 97.5 | 98.5 |
Fe2O3 (%) | 0.78 | 0.44 | 0.21 | 0.25 | 0.20 | 0.20 | 0.10 | 0.20 |
Al2O3 (%) | 0.29 | 0.20 | 0.21 | 0.25 | 0.20 | 0.20 | 0.20 | 0.20 |
CaO (%) | 0.39 | 0.30 | 0.36 | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 |
K2O+ Na2O (%) | 0.29 | 0.24 | 0.22 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 |
Moisture (%) | 3.05 | 2.55 | 2.05 | 2.05 | 1.85 | 1.25 | 1.00 | 1.00 |
Loss on Ignition (L.O.I) @975OC (%) | 4.38 | 3.38 | 2.38 | 2.38 | 2.28 | 1.88 | 1.55 | 1 |
4.Packing
In jumbo bags as buyer's request.
5.Delivery Time
Within 30 days after confirming the order.
