92% Densified Microsilica (Silica Fume 92D)
Densified Microsilica with Minimum SiO₂ Content 92%
- High Pozzolanic Activity Index.
- High Compressive Strength.
- Low Loss on Ignition (LOI).
| Chemical and Physical Requirements | Specifications |
| SiO2 (Silicon Dioxide), Amorphous | 92% min |
| H2O (moisture content when packed) | 3.0% max |
| LOI (Loss on Ignition) | 6.0% max, typical 2.13% |
| Retained on 45 Micron Sieve | 10% max |
| Bulk Density (when packed) | 500-700kg/m3 |
| PAI (Pozzolanic Activity Index) | 105% min |
| Al2O3 (Aluminum Oxide) | typical 0.75% |
| SiO2 (Silicon Dioxide, Amorphous) | typical 93.13% |
| SO3(Sulphur Trioxide) | 0.26% |
| K2O (Potassium Oxide) | 1.17% |
| MgO (Magnesium Oxide) | 0.42% |
| Na2O (Sodium Oxide) | 0.12% |
| CaO (Calclum Oxide) | 1.02% |
| Fe2O3 (Iron Oxide) | 0.19% |
Standards
ACC® Microsilica Grade 92D conforms to the mandatory requirements of the relevant standards from:
- American Society for Testing and Materials (ASTM C 1240).
- European Committee for Standardisation.
Quality Control
ACC® Microsilica is certified according to ISO 9001.
The chemical composition and physical properties are regularly tested in accordance with international standards.
Packaging
The product is supplied in a range of packaging:
- 950/1000kg double plastic woven jumbo bag.
- 20/25kg woven bags with PE liner.
- 10/12/20kg water-degradable paper bag.
- Special packaging can be supplied on request.