Blue Circle Ash has renamed its graded ash products. Now known as Envir-O-Agg™, these product are available in four product families, Envir-O-Agg™ Select, Envir-O-Agg™ Blend, Envir-O-Agg™ Sands and Envir-O-Agg™ All Purpose. Envir-O-Agg™ is the coarse by-product of coal fired furnaces. Blue Circle Ash collects and classifies Envir-O-Agg™ products from a number of power stations in NSW, but primarily from Eraring and Vales Point Power Stations.
Envir-O-Agg™ is a cost effective, versatile material that exhibits outstanding permeability and bridging qualities and can add specific ‘lightweighting’ benefits in a variety of construction and engineering applications. It has also been tested and classified as an inert waste under the Environmental Protection Authority guidelines.
Blue Circle Ash screens and grades Envir-O-Agg™ into a range of products, these include the following.
- Run of Station – This is a general, all purpose material, suitable for under concrete slab fill, sub-grade material for roads and as a fill behind retaining walls.
- Drainage Material – This is a general free draining material, suitable for all wet area drainage situations.
- Coarse Filter Material – This is a coarse specified aggregate material suitable around plumbers’ pipes and as a base in gardens and pot plants.
- Filter Material – This is a fine specified aggregate used in water filtering applications and as a ‘lightweighting agent’ in many traditional construction materials such as sand and quarry dust.
- Coarse Sand – This is a coarse graded material which is used as a ‘lightweighting agent’ in traditional sand materials for concreting. Many horse tracks have benefited from its use.
- Fine Sand – This is a fine graded material used as fill, particularly when fill needs to be moved quickly and easily in difficult access conditions, for example old mine shafts.
- Road Fill – This is a non specified general fill, suitable for sub-grade replacement and wherever fill may be required.
- Easyflow – This is a controlled low strength material that is self compacting and has desirable free flowing properties in backfill applications.
Blue Circle Ash is leading the way in developing products and standards for Envir-O-Agg™ material for use in the construction industry. Envir-O-Agg™ is supplied in bulk and bulker bags on request. For more information please contact Blue Circle Ash telephone (02) 4359 1988, email bluecircleash@boral.com.au or visit bluecirclesouthern.com.au/enviroagg
