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Details of Grant 

EPSRC Reference: GR/L81888/01
Title: THE TRANFORMATION OF RE-CYCLED WASTEPAPER RESIDUES INTO CONSTRUCTION MATERIALS -PHASE 2
Principal Investigator: Webster, Professor PJ
Other Investigators:
Leach, Dr P
Researcher Co-Investigators:
Project Partners:
Bridgewater Paper Co Ltd British Gypsum Ltd Laing Technology Group Ltd
Marshalls Mono Ltd
Department: Advanced Materials & Surfaces (Res Cen)
Organisation: University of Salford
Scheme: Standard Research (Pre-FEC)
Starts: 22 September 1997 Ends: 21 December 1999 Value (£): 164,806
EPSRC Research Topic Classifications:
Waste Management
EPSRC Industrial Sector Classifications:
Environment
Related Grants:
Panel History:  
Summary on Grant Application Form
Recycling wastepaper creates residual waste solids estimated at 20% of the 4 million tones processed annually in the UK. This end of pipe waste, comprising fine cellulose fibbers and clay minerals is disposed of by landspread landfill, and incineration. Alternative ways are being sought to utilize the waste. Phase 1 has demonstrated that post-flocculation end of pipe waste can be used in construction applications and the result substantially exceeded expectations. Even better results can be achieved using pre-flocculation solids. Phase 2 proposes separation technology to capture pre-flocculation solids which are carried in an aqueous solution (about 3% solids). A slurry is required (about 20% solids). This would be more efficient in economic and energy terms than the end of pipe process. The pre-flocculation solids form microstructures superior to those of post-flocculation solids (phase 1). Analysis of the microstructures, their influence on the mechanical properties, scientifically based behavior predictions and subsequent contraction application form the basis of the proposal.
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Organisation Website: http://www.salford.ac.uk