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The Effect of Co-Combusted Biomass-Coal Fly Ash on the Behaviour Portland Cement

By M Wardle, S Li, R Taylor, Q Li and L Black


This project has investigated the hydration behaviour of pfa-OPC blended cements, comparing conventional pfa with that obtained from co-firing of coal with biomass (palm kernel expeller). Calorimetry, thermal analysis and electron microscopy have been used to investigate the compositions and microstructures of the hydrated pastes. These have been used to explain the materials’ engineering properties (strength development and workability). The results showed that, in the short term, the behaviour of the co-fired material is comparable with that of conventional pfa, there being no discernable differences between the two systems

OAI identifier: oai:eprints.whiterose.ac.uk:9777

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