Densified Microsilica 971 D
Densified Microsilica 971 D with Minimum SiO₂ Content 97%
- High Pozzolanic Activity Index.
- High Compressive Strength.
- Low Loss on Ignition (LOI).
| Property | Value |
| SiO2 | 97.5% min, typical 98.9% |
| C | 0.8% max, typical 0.66% |
| Fe2O3 | 0.3% max, typical 0.02% |
| Al2O3 | 0.7% max |
| CaO | 0.3% max, typical 0.17% |
| MgO | 0.5% max, typical 0.05% |
| K2O | 0.6% max, typical 0.17% |
| Na2O | 0.3% max, typical 0.01% |
| P2O5 | 0.1% max, typical 0.01% |
| SO3 | 0.4% max |
| Cl | 0.1% max |
| H2O | 0.8% max |
| L.O.L @975℃ | 1.0% max, typical 0.58% |
| pH | 4.5-6.5, typical 6.0 |
| Particle Size | 0.6% max |
| Bulk Density | 500-600 kg/m3 |
Standards
ACC® Microsilica Grade 971D 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.