|SiO2 (Amorphous)||90% min|
|Free CaO||typical 1.05%|
|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|
ACC® Microsilica Grade 90D conforms to the mandatory requirements of the relevant standards from:
ACC® Microsilica is certified according to ISO 9001.
The chemical composition and physical properties are regularly tested in accordance with international standards.
The product is supplied in a range of packaging: