| EPSRC Reference: |
GR/M51444/01 |
| Title: |
PRODUCTION OF LIGHTWEIGHT AGGREGATES FROM 'WASTE TO ENERGY' COMBUSTION ASHES |
| Principal Investigator: |
Cheeseman, Professor C |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Civil & Environmental Engineering |
| Organisation: |
Imperial College London |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 August 1999 |
Ends: |
31 July 2002 |
Value (£): |
221,017
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| No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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The production process for lightweight aggregates to be optimised involves mixing 'energy from waste' ashes, a small amount of a binder (typically clay) to provide pellet strength prior to firing, and an organic waste (waste water treatment sludge) which controls porosity. These will be ball milled and filtered to form a low water content homogenous material for processing into near spherical pellets before firing (heat treatment) in a rotary kiln. The initial phase of the project will involve setting up a laboratory production based on milling, filter pressing, pelletising and firing. Each stage will be optimised and controlled and the microstructure and physical properties of the materials produced assessed. Different ashes and ash fractions will be used in the research. The characteristics of the unfired pellets will be studied as these control fired aggregate properties. The effect of firing temperature and profile on microstructure and properties will also be optimised. The final stage of the project will involve production and testing of lightweight concretes made with optimised ash-derived aggregates and comparison of their properties to good quality lightweight aggregate concretes using standard test techniques.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.imperial.ac.uk |