1. Instruction
- Microsilica , also called silica fume or micro silica, is a byproduct ofproducing silicon metal or ferrosilicon alloys.
- Silicon metal and alloys are produced in electric furnaces. The rawmaterials are quartz, coal, and woodchips.
- The smoke that results from furnace operation is collected and sold assilica fume, rather than being land filled.
- Silica fume consists primarily of amorphous (non-crystalline) silicondioxide (SiO2), its average granule diameter is 0.15~0.20 µm,specificsurface area is 15000~20000 m2/kg, and it has extremely strongsurface active.
- Microsilica can be used in a variety of cementation products, such asconcrete, grouts, and mortars as well as elastomeric, polymer, refractory,ceramic and rubber applications.
- HS No.: 28112200 China Origin, microsilica meets the requirements ofASTM C-1240.
- Microsilica CAS#: 69012-64-2
2. Main function
- Microsilica in refractory enhancing thefluid of pouring refractory, reducing the volume of used water, be easy toshape, and raising the production efficiency.
- Because of its ultra microstructure forgap filling, the compact and intensity of refractory gain rising by a wademargin.
- Microsilica in refractory is a highlyeffective pozzolanic material, so it's easy to come into being Mullet Phase,under the premise that Al2O3 exists, enhance elevated temperature strength andthermal shock of refractory.
- Microsilica in refractory is used in Microsilica in refractory is used inunshaped,shapedgunned refractory materials to improves adhesion in castablesand minimizes rebound loss.
3.Specification of MicrosilicaJH97
Index items | Standard Value |
SiO2(Silicon Dioxide) | Min. 97.0% |
C(Carbon) | Max. 0.7% |
Fe2O3 (Iron Oxide) | Max. 0.1% |
Al2O3(Aluminium Oxide) | Max. 0.3% |
CaO(Calcium Dioxide) | Max. 0.3% |
MgO(Magnesium Dioxide) | Max. 0.2% |
K2O(Potassium Dioxide) | Max. 0.3% |
Na2O(Sodium Dioxide) | Max. 0.2% |
P2O5(Phosphorus Pentoxide) | Max. 0.1% |
SO3(Sulphur Trioxide) | Max. 0.2% |
Cl (Chloride) | Max. 0.1% |
Moisture Content(H2O ) | Max. 0.5% |
Loss on Ignition(L.O.I) | Max. 0.5% |
Percent Retained On 45μm (325 sieve) | Max. 0.5% |
Bulk Density | 250-300kg/m3 and 450-600kg/ m3 |
4. Luoyang Jihe Micro-Silica Fumecompany
We are willing to take a sincere attitude andcooperation with you.
(1) Quality
We have our own test lab in factory and supplystable and reliable microsilica to our customers.
(2) Price
We have 3 microsilica factories in Shanxi,Qinghai and Yunnan, our price is low and reasonable.
(3) Convenient
We have warehouse in Luoyang and havetransportation partner. Delivery is fast and easy.
(4) Service
Our sales groups are positive attitude, and 24hours feedback service to ensure the service is good.
