Frequency sweep based sensing technology for non-destructive electrical resistivity measurement of concrete

Wickramanayake, S; Thiyagarajan, K; Kodagoda, S; Piyathilaka, L

Frequency sweep based sensing technology for non-destructive electrical resistivity measurement of concrete

Wickramanayake, S Thiyagarajan, K

Kodagoda, S

Piyathilaka, L

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Publication Type:: Conference Proceeding
Citation:: Proceedings of the 36th International Symposium on Automation and Robotics in Construction, ISARC 2019, 2019, pp. 1290 - 1297
Issue Date:: 2019-01-01

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Field	Value	Language
dc.contributor.author	Wickramanayake, S	en_US
dc.contributor.author	Thiyagarajan, K https://orcid.org/0000-0002-4044-1711	en_US
dc.contributor.author	Kodagoda, S https://orcid.org/0000-0001-5175-9138	en_US
dc.contributor.author	Piyathilaka, L https://orcid.org/0000-0003-4676-9387	en_US
dc.date.issued	2019-01-01	en_US
dc.identifier.citation	Proceedings of the 36th International Symposium on Automation and Robotics in Construction, ISARC 2019, 2019, pp. 1290 - 1297	en_US
dc.identifier.uri	http://hdl.handle.net/10453/133695
dc.description.abstract	© 2019 International Association for Automation and Robotics in Construction I.A.A.R.C. All rights reserved. Electrical resistivity is an important parameter to be monitored for the conditional assessment and health monitoring of aging and new concrete infrastructure. In this paper, we report the design and development of a frequency sweep based sensing technology for non-destructive electrical resistivity measurement of concrete. Firstly, a sensing system prototype was developed based on the Wenner probe arrangement for the electrical resistivity measurements. This system operates by integrating three major units namely current injection unit, sensing unit and microcontroller unit. Those units govern the overall operations of the sensing system. Secondly, the measurements from the developed unit were compared with the measurements of the commercially available device at set conditions. This experimentation evaluated the measurement performance and demonstrated the effectiveness of the developed sensor prototype. Finally, the influence of rebar and the effect of frequency on the electrical measurements were studied through laboratory experimentation on a concrete sample. Experimental results indicated that the electrical resistivity measurements taken at a closer proximity to the rebar had its influence than the measurements taken away from the rebar in the ideal set condition. Also, the increase in electrical resistivity to the increase in frequency was observed, and then the measurements show lesser variations to higher frequency inputs.	en_US
dc.relation.ispartof	Proceedings of the 36th International Symposium on Automation and Robotics in Construction, ISARC 2019	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Frequency sweep based sensing technology for non-destructive electrical resistivity measurement of concrete	en_US
dc.type	Conference Proceeding
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CAS - Centre for Autonomous Systems
utslib.copyright.status	open_access	*
pubs.publication-status	Published	en_US

Abstract:

© 2019 International Association for Automation and Robotics in Construction I.A.A.R.C. All rights reserved. Electrical resistivity is an important parameter to be monitored for the conditional assessment and health monitoring of aging and new concrete infrastructure. In this paper, we report the design and development of a frequency sweep based sensing technology for non-destructive electrical resistivity measurement of concrete. Firstly, a sensing system prototype was developed based on the Wenner probe arrangement for the electrical resistivity measurements. This system operates by integrating three major units namely current injection unit, sensing unit and microcontroller unit. Those units govern the overall operations of the sensing system. Secondly, the measurements from the developed unit were compared with the measurements of the commercially available device at set conditions. This experimentation evaluated the measurement performance and demonstrated the effectiveness of the developed sensor prototype. Finally, the influence of rebar and the effect of frequency on the electrical measurements were studied through laboratory experimentation on a concrete sample. Experimental results indicated that the electrical resistivity measurements taken at a closer proximity to the rebar had its influence than the measurements taken away from the rebar in the ideal set condition. Also, the increase in electrical resistivity to the increase in frequency was observed, and then the measurements show lesser variations to higher frequency inputs.

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http://hdl.handle.net/10453/133695