Undensified Micro Silica Fume 96.2% 290Kg/m3 360Kg/m3 Grey
96% SiO2 Undensified Microsilica for High Performance Concrete, Refractory, Baffle, Silicon Carbide Cover Plate
1. Micro Silica Fume Introduction
When silica fume is used to smelt ferrosilicon and industrial silicon (metal silicon), a lot of strong volatile SiO2 and Si gases are produced in the submerged arc furnace. After the gas is discharged, it contact with air and is rapidly oxidized and condensed. It is a product of large industrial smelting. The whole process needs to be recovered by using dust removal and environmental protection equipment, because the quality is relatively light, and densified equipment is also needed for densified.
Undensified Silica Fume is mainly composed of SiO2 wollastonite, particle characteristics is ultrafine powder, the vast majority is less than 1 um, the average particle size is 0.1 um, has very high specific surface area (300-400 M2 / kg) and pozzolanic activity.
2. Specifications
|
Analysis |
Result |
||||
|
SF85 |
SF88 |
SF90 |
SF92 |
SF94 |
|
|
SiO2(%) |
86.21 |
88.62 |
91.63 |
93.67 |
96.95 |
|
Fe2O3(%) |
0.7 |
0.65 |
0.35 |
0.2 |
0.2 |
|
Al2O3(%) |
0.38 |
0.26 |
0.22 |
0.2 |
0.2 |
|
CaO+MgO(%) |
0.4 |
0.36 |
0.36 |
0.3 |
0.3 |
|
K2O+Na2O(%) |
0.3 |
0.28 |
0.2 |
0.2 |
0.2 |
|
Moisture(%) |
1.77 |
1.66 |
1.66 |
0.82 |
0.91 |
|
Loss on lgnition(L.O.I)@975℃ (%) |
3.6 |
2.92 |
2.07 |
1.92 |
1.91 |
3. General Characteristics
● Microsilica grade 96 is produced purposely as a separate product, aimed for stable properties and very low impu- rity levels. Our 96% Undensified microsilica is also produced with special attention towards microsilica quality.
● The high purity 96% undensified silica fume makes it particularly suitable for its use in refractory applications. The low content of carbon (giving the light colour) ensures good flowability of the castable. The amount of alkalies is also very low, preventing softening at high temperatures.
● Another important characteristic is stable pH-values, giving castables with regular and predictable setting properties.
4. Package
10kg soluble paper bags x 84 on the pallets.
20kg soluble paper bags x 42 on the pallets.
950kg plastic woven bags x 2 on the pallets(with or without bottom output )
1000kg plastic woven bags x 2 on the pallets(with or without bottom output )
500kg plastic woven bags x 2 on the pallets (with or without bottom output )
We can also produce according to your requirements.
5. Applications
Due to many benefits imparted to concrete, it is highly recommemded for use in the following application :
– Mining & Tunnelling.
– High rise buildings.
– For producing all concrete products including readymix concrete.
– Motorways, bridges & dams etc
Refractory
High Temperature: Microsilica reacts with alumina forming mullite which gives a castable high strength at up to 1700 degree.
Heat Up: Improved green strength
Flow: Reduced water demand when casting
Dense Castables: Void filling for density for lower permeability, higher strength and higher thermal conductivity
Other
– Casting
– Insulation
– Non cementitious building products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.