
Fly Ash
Classified and Unclassifed
An ultra fine powdery residue (smoke) obtained from any carbon burning process.
Class N Fly Ash (UCFA)
A more granular product Fly of Ash product which is derived directly from the combustion process
Unclassified Fly Ash
Used as a partial cement replacement when making concrete or cementitious products, because of its granular properties it offers a slower reaction to the solution.
- Alumina - Silicates consisting mainly of SiO₂͵ AL₂O₃͵ CaO͵ Fe₂O₃
Class S Fly Ash (CFA)
Finer Ash which further selected/Split from the classifier
Classified Fly Ash
Used as a partial cement replacement when making concrete or cementitious products, because of its Finer properties it offers an accelerated reaction to the solution.
- Alumina - Silicates consisting mainly of SiO₂͵ AL₂O₃͵ CaO͵ Fe₂O₃