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Detection of rebars in concrete using advanced ultrasonic pulse compression techniques

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Laureti, S., Ricci, M., Mohamed, M. N. I. B., Senni, L., Davis, Lee A. J. and Hutchins, David A. (2018) Detection of rebars in concrete using advanced ultrasonic pulse compression techniques. Ultrasonics, 85 . pp. 31-38. doi:10.1016/j.ultras.2017.12.010 ISSN 0041-624X.

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Official URL: https://doi.org/10.1016/j.ultras.2017.12.010

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Abstract

A pulse compression technique has been developed for the non-destructive testing of concrete samples. Scattering of signals from aggregate has historically been a problem in such measurements. Here, it is shown that a combination of piezocomposite transducers, pulse compression and post processing can lead to good images of a reinforcement bar at a cover depth of 55 mm. This has been achieved using a combination of wide bandwidth operation over the 150-450 kHz range, and processing based on measuring the cumulative energy scattered back to the receiver. Results are presented in the form of images of a 20 mm rebar embedded within a sample containing 10 mm aggregate.

Item Type: Journal Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Science, Engineering and Medicine > Engineering > Engineering
Library of Congress Subject Headings (LCSH): Reinforced concrete -- Testing, Ultrasonic transducers, Reinforcing bars
Journal or Publication Title: Ultrasonics
Publisher: Elsevier Science BV
ISSN: 0041-624X
Official Date: April 2018
Dates:
DateEvent
April 2018Published
30 December 2017Available
29 December 2017Accepted
1 October 2017Updated
Volume: 85
Page Range: pp. 31-38
DOI: 10.1016/j.ultras.2017.12.010
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Date of first compliant deposit: 11 October 2017
Date of first compliant Open Access: 30 December 2018
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
EP/K031201/1Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266

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