Heaton, T, Sammon, C, Ault, J et al. (2 more authors) (2014) Masonry units bound with waste vegetable oil - Chemical analysis and evaluation of engineering properties. Construction and Building Materials, 64. 460 - 472. ISSN 0950-0618
Abstract
Masonry units with attractive environmental credentials can be produced from waste aggregate materials and vegetable oils. Heat curing at low temperatures induces chemical changes in the binder which stiffen the block and afford them a compressive strength which can be compared to existing blocks and bricks. This method allows use of 100% waste materials, which far exceeds the level of replacement possible in traditional concrete and clay matrices. To better understand the chemistry of the vegetable oil binder at different stages of the curing process a range of experiments have been performed including infrared spectroscopy, liquid chromatography and mass spectrometry. Results show production of chain-shortened and oxygenated derivatives and the nature of reactions based on curing time and physical environment of the binder. Compressive strength and mass loss are dependent on curing time and the altered molecular architecture of the oil, but other physical properties are independent of the chemistry and reliant on physical concerns such as aggregate selection.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Keywords: | Masonry units; Vegetable oil binder; Oxidation; Infra-red spectroscopy; Mass spectrometry; Liquid chromatography; Physical stability; Compressive strength |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Biological Sciences (Leeds) The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) > Institute for Resilient Infrastructure (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 09 Oct 2015 14:14 |
Last Modified: | 01 Nov 2015 10:26 |
Published Version: | http://dx.doi.org/10.1016/j.conbuildmat.2014.04.07... |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.conbuildmat.2014.04.079 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:88951 |