Densified Microsilica (Silica Fume) Grade 90D
Densified Microsilica with Minimum SiO2 Content 90%
- High Pozzolanic Activity Index.
- High Compressive Strength.
- Low Loss on Ignition, LOI.
| Property | Value |
|---|---|
| SiO2 (Amorphous) | 90% min |
| SO3 | typical 1.03% |
| Fe2O3 | typical 0.93% |
| Free CaO | typical 1.05% |
| Moisture | 3.0% max |
| LOI (Loss on Ignition) | 6.0% max, typical 2.10% |
| Specific Surface (BET) | 15 m2/gram min |
| Bulk Density | 500-700 kg/m3 |
| Pozzolanic Activity Index – 7 days accelerated curing | 105% min |
| Retained on 45 Micron Sieve | 10% max |
| Variation from avg. retained on 45 Micron Sieve | 5% max |
Standards
ACC® Microsilica Grade 90D 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.