Fly ash
Pozzolanic Enterprises is Australia’s leading marketer of fly ash and associated products. This valuable by-product from Queensland coal-fired power stations improves concrete performance and provides various opportunities in a wide range of cementitious and non-cementitious applications.
The ash, also known as CCP (Coal Combustion Product) and PFA (Pulverised Fuel Ash), is regarded as a low cost natural resource or industrial mineral. It is primarily composed of alumino-silicate spheres and may also contain:
- Cenospheres (hollow particles)
- Iron bearing particles; and
- Unburned carbon.
The ash has the following natural advantages as a raw material:
- Pozzolanic attributes (reacts with lime to form cementitious products)
- Inert chemical composition
- Well graded particle size distribution
- Relative consistency of composition from any given source; and
- Abundant reserves.
The ash products of Pozzolanic Enterprises include:
These products can be delivered in bulk, in bulker bags or in 20kg bags.
Concrete Grade Fly Ash
Fly Ash processed to meet the Fine Grade requirements of AS3582.1 is recommended for use in virtually all conventional concrete applications.
Fly Ash brochure
Kaolite HPA
Kaolite HPA is a high performance fly ash product developed by Pozzolanic that both increases the density and reduces the permeability of concrete by providing a filler effect and a reactive cementitious material. Kaolite is used in high performance concrete and has been used in various specialist applications including a grout employed in lining the tunnel of the S1 Main Sewer system in Brisbane.
Kaolite HPA brochure
Furnace Bottom Ash
Furnace bottom ash can is used as a lightweight free draining composite material in landscaping. Furnace bottom ash is formed in the lower part of the boiler and falls directly to the bottom of the furnace. This ash is not classified as a fly ash due to the different formation and collection process and it is not regulated like fly ash. Furnace bottom ash is a relatively low cost material. It can be blended into soils up to a maximum rate of approximately 15%, where it is used to enhance the structure of soils. It holds moisture but is also free draining. Pozzolanic has developed a furnace bottom ash range called “Flash”.
Hot Mix Ash
Hot Mix Ash is used as a mineral filler in asphalt. It must meet the requirements of AS2352.
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