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Proceedings Paper

Optical fibre grout flow monitor for post-tensioned reinforced tendon ducts
Author(s): W. Craig Michie; I. McKenzie; Brian Culshaw; Peter T. Gardiner; A. McGown
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Paper Abstract

We report on preliminary experimental trials aimed at assessing the suitability of a distributed water monitor as a means of determining the presence of grout in reinforced tendon ducts of civil engineering structures. This sensing capability is realized through a combination of Optical Time Domain Reflectometry (OTDR) and chemically sensitive water swellable polymers (hydrogels). This form of sensor cable can detect water as a function of linear position along its length with a spatial resolution of a few centimeters1,2. The experiments carried out here indicate that this approach has considerable potential as a means of providing quality assurance during the grouting procedure.

Paper Details

Date Published: 13 September 1994
PDF: 4 pages
Proc. SPIE 2361, Second European Conference on Smart Structures and Materials, (13 September 1994); doi: 10.1117/12.184821
Show Author Affiliations
W. Craig Michie, Univ. of Strathclyde (United Kingdom)
I. McKenzie, Univ. of Strathclyde (United Kingdom)
Brian Culshaw, Univ. of Strathclyde (United Kingdom)
Peter T. Gardiner, Univ. of Strathclyde (United Kingdom)
A. McGown, Univ. of Strathclyde (United Kingdom)

Published in SPIE Proceedings Vol. 2361:
Second European Conference on Smart Structures and Materials
Alaster McDonach; Peter T. Gardiner; Ron S. McEwen; Brian Culshaw, Editor(s)

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