Undensified Micro Silica (Silica Fume) USF 850
● Very Small Particle Size.
● High Pozzolanic Active index
● Strong absorbability.
● High Compressive Strength.
| Test Items |
Typical |
| SiO2 (%) |
92.91 |
| SO3 (%) |
0.48 |
| Cl (%) |
0.022 |
| MgO (%) |
0.66 |
| Al2O3 (%) |
0.81 |
| Fe2O3 (%) |
0.72 |
| K2O (%) |
1.06 |
| Na2O (%) |
0.1 |
| Free CaO (%) |
0.79 |
| PH |
7.09 |
| Moisture (%) |
0.3 |
| LOI (%) |
1.08 |
| Specific Surface (BET) (m2/g) |
21.33 |
| Activity Index (%) |
109 @ 7days |
| Retained on 45-μm (No.325) (%) |
1.33 |
| Fluidity (cm) |
20.02 |
Applications
● Construction
● Fertilizer
● Pesticide
● Extinguishant
● Pellet binder
● Insulating material, waterproof material, paint, coating, printing industry, etc.
Features
● Improve compressive strength, bond strength, abrasion resisitance, reduce permeability in construction application.
● Improve the fluidity of refractory casting materials, improve the compactness, temperature strength and thermal shock resistance. Reduce water consumption in refractory application.
● As dispersant for chemical products, micro silica instead of mica or diatomite to prevent fertilizer particles caking. Making potassium silicon compound fertilizer, protect the soil from erosion or deterioration.
● With strong adsorbability and large specific surface, as anti-caking agent or pellet binding agent improve economic performance.
