Article
Version 2
Preserved in Portico This version is not peer-reviewed
Accuracy of Eddy-Current and Radar Methods Used to Reinforcement Detection
Version 1
: Received: 31 December 2018 / Approved: 3 January 2019 / Online: 3 January 2019 (12:14:16 CET)
Version 2 : Received: 4 March 2019 / Approved: 5 March 2019 / Online: 5 March 2019 (11:11:44 CET)
Version 2 : Received: 4 March 2019 / Approved: 5 March 2019 / Online: 5 March 2019 (11:11:44 CET)
A peer-reviewed article of this Preprint also exists.
Drobiec, Ł.; Jasiński, R.; Mazur, W. Accuracy of Eddy-Current and Radar Methods Used in Reinforcement Detection. Materials 2019, 12, 1168. Drobiec, Ł.; Jasiński, R.; Mazur, W. Accuracy of Eddy-Current and Radar Methods Used in Reinforcement Detection. Materials 2019, 12, 1168.
Abstract
Currently, electromagnetic and radar methods are the most common non-destructive tests for non-destructive rebar location in structures.. Both methods have some advantages, disadvantages and limitations. This article is an attempt to describe possibilities of particular methods with emphasizing their advantages and limitations. The first stage of tests included results from tests conducted on a lintel beam made of autoclaved aerated concrete (AAC) and reinforced with small-diameter rebars and rebars placed close to each other. The second stage consisted in testing nine lightweight concrete specimens, each with three bars having a diameter of 10, 16 and 20 mm at three different space arrangements, to determine the effect of bar diameter and spacing on the measurement accuracy. The reinforcement of lintels and specimens was tested with two different electromagnetic scanners and a ground-penetrating radar (GPR) device. Received results from direct tests were compared with results from non-destructive tests (NDT). NDT tests conducted in such an element were found to perform the correct assessment of the concrete cover, and at the same time to give ambiguous results with reference to shape and number of rebars.
Keywords
NDT Methods, Rebar location, Eddy-current method, GPR method
Subject
Engineering, Civil Engineering
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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