PROGRESS TOWARDS ACHIEVING ECOLOGICALLY SUSTAINABLE CONCRETE AND ROAD PAVEMENTS IN AUSTRALIA

Historically, the concrete and road pavement industries in Australia rely heavily on the use of prime quality natural aggregates. Abundance of high quality natural fine and coarse aggregates, located close to major cities, prescription specifications and seemingly unlimited waste disposal sites, have contributed to this practice. Despite the successful introduction of the industrial by-products of Fly Ash and Blast Furnace Slag products to concrete and road construction in the 1960's, it is only relatively recently that both government and private sectors have accepted the view that better utilisation of resources must be achieved. A more ecologically sustainable and responsible attitude is being adopted with respect to waste minimisation, utilisation of by-products, re-use of construction and demolition waste and improved energy efficiency. Some of the issues and steps to be implemented in this regard are outlined, covering topics such as: recycled concrete aggregate, (RCA), concrete washouts, reclaimed asphalt pavement (RAP), manufactured sands, tunnelling materials, bottom ash and other similar products. The research carried out, both in laboratory and in the field, demonstrates the suitability of such products in concrete and road pavement applications. It is concluded that some provisions in the current specifications and new performance based specification are necessary in order to accommodate more construction and demolition materials. (A) For the covering abstract see ITRD E121685.

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  • Corporate Authors:

    Elsevier

    The Boulevard, Langford Lane
    Kidlington, Oxford  United Kingdom  OX5 1GB
  • Authors:
    • MUNN, R
    • SMORCHEVSKY, G
    • Dumitru, I
  • Publication Date: 2000

Language

  • English

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Filing Info

  • Accession Number: 00979544
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-08-043790-7
  • Files: ITRD
  • Created Date: Oct 6 2004 12:00AM