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Title: Characterisation of waste vegetable oils used as binders for masonry units made entirely of waste materials
Author: Heaton, Thomas
ISNI:       0000 0004 2718 2684
Awarding Body: University of Leeds
Current Institution: University of Leeds
Date of Award: 2011
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Vegeblocks are masonry units made from 100% waste materials. They use waste vegetable oil as a binder, and the manufacture process involves heat curing of a block made from a mixture of the binder and waste aggregates. Research into long-term properties and enhancement of the manufacture process of these units requires an understanding of the chemistry that occurs during this process. Analysis of the binder by a mixture of spectroscopy and chromatography indicates that the reactions are characterised by consumption of unsaturated hydrocarbons in the seed oils to form products of hydrolysis, cross-linking and oxidation, supported by the literature concerned with thermal stress and oxidation of vegetable oils. Though strength gain can be directly linked to the consumption of double bonds, other physical properties are more dependent upon the aggregate mixture and manufacture process. This work demonstrates the potential and limitations of several sophisticated techniques used to analyse the material and provides a basis upon which a holistic understanding of the matrix can be built.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available