Abstract
This paper presents research on novel load sensors for use in building structures carried out by the principal investigator in his multidisciplinary doctorate research. The sensors consist of carbon-nanotube-enhanced cement matrix and polymer composites. They record a change in electrical resistance when subjected to a change in imposed load. The sensor types are subjected to load tests, Raman spectroscopy characterisation and scanning electron microscopy tests. The gauge factors of the preferred sensor types are calculated and compared with those obtained from the literature. A critique of the preferred novel sensor system is provided.
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