Use of Recycled Water in Concrete Production
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Use of Recycled Water in Concrete Production
Use of Recycled Water in Concrete Production

Size: 0.79 MB | Format: PDF | Publisher: Cement Concrete & Aggregates Australia | Year: 2007 | pages: 27

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With the current water shortage in Australia, there is a need as well as opportunities to look for alternative sources of water for use in concrete production. Water authorities are increasing the supply of recycled water as ‘greywater’ for domestic use and as ‘reclaimed water’ for agricultural and industrial needs. They also encourage sewer mining by the private sector. In addition, it is possible to reuse higher proportions of wash water as well as combined wash water and slurries from concrete production operation (CPO) which will move the concrete industry toward zero-discharge facilities.
This report presents current information on the quality of concrete mixing water in terms of: mandatory limits and guidelines on impurities, as well as permissible performance variations stipulated in leading National and International Standards; and the impact of CPO water on concrete performance. New sources of reclaimed water which are or will be available for industrial usage are identified in terms of quality and impact on Occupational Health and Safety (OH&S). Based on this review, new opportunities and gaps in knowledge will be identified.
The objectives of this study are to:
- compile guidelines on quality of water suitable for making concrete in terms of the presence and limits on impurities;
- review the reuse of water from concrete production operation (CPO);
- review alternative sources of water supply, quality and impact on OH&S.

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