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Power Station Fly Ash as a Cement Additive at Cement Australia

Summary

Pozzolanic Enterprises, a subsidiary of Cement Australia, collects fly ash from the Gladstone power station for use as cement additive in Cement Australia operations. Fly ash has chemical and physical properties, in particular its sphericity and fine size that are beneficial in concrete production. Pozzolanic selects fly ash that meets the required specifications and this represents about a third of all the fly ash that is produced by the power station. The remaining fly ash is discharged to local bunds.

The collection of fly ash from power stations for use as a cement additive is not only common practice but a synergy where both parties benefit. The power stations dispose of less fly ash to local bunds and the cement operations have an improved product as well as using less limestone, a non-renewal resource.

Industry

Industry Sector Specific Industry
power utility sector
  • power station
cement sector
  • cement additive industry sector

Region

Gladstone Industrial Area, Gladstone, Queensland, Australia

Applied Technologies

None.

Triple Bottom Line Aspects (direct at operational level)

Economic
  • produces revenue stream for power station
  • improves performance of cement
Environmental
  • reduces disposal of fly ash to local bunds
  • reduces use of raw materials to cement plant
Social
  • less fly ash being deposited into local bunds

Additional Comments

None.

References

Last Update

31 October 2005