Orr, S;
Viles, H;
Leslie, A;
Stelfox, D;
(2016)
Comparability of non-destructive moisture measurement techniques on masonry during simulated wetting.
In: Hughes, JJ and Howind, T, (eds.)
Science and Art: a Future for Stone: Proceedings of the 13th International Congress on the Deterioration and Conservation of Stone.
(pp. pp. 431-438).
University of West Scotland: Paisley, UK.
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Abstract
Detecting the presence of moisture in historical masonry is essential to understanding how a structure interacts with the environment, and diagnosing the potential for damage from a range of physical, chemical, and biological processes. In-situ, non-invasive diagnostic techniques have been developed in preference to methods that require irreversible modifications to a structure. These techniques include: electrical resistivity, microwaves, and infrared thermography. Independently, these approaches provide limited snapshots of surficial and internal moisture regimes; this project sought to assess the comparability of multiple techniques. Simulated post-rain spell drying was monitored over 48 h on limestone and sandstone monoliths in a controlled laboratory environment and also in ambient conditions on purpose-built masonry located in Oxfordshire, UK. Repeat measurements were taken using electrical resistance tomography (ERT), electrical and microwave moisture meters, and infrared thermography. Three aspects of comparability are discussed: i) data transformations and geological comparability, ii) depth-resolving meter readings, iii) the localised benefits of employing multiple technologies and instruments.
Type: | Proceedings paper |
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Title: | Comparability of non-destructive moisture measurement techniques on masonry during simulated wetting |
Event: | 13th International Congress on the Deterioration and Conservation of Stone |
Location: | Paisley, UK |
Dates: | 06 September 2016 - 10 September 2016 |
ISBN-13: | 978-1-903978-57-3 |
Open access status: | An open access version is available from UCL Discovery |
Publisher version: | https://sites.google.com/site/sc16test/home |
Language: | English |
Additional information: | Licenced under a Creative Commons Attribution 4.0 International License. |
Keywords: | moisture mapping, drying processes, non-destructive testing (NDT), instrument comparability, stone masonry |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > Bartlett School Env, Energy and Resources |
URI: | https://discovery.ucl.ac.uk/id/eprint/10083126 |
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