Preprint Article Version 2 This version is not peer-reviewed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)

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.

Journal reference: Materials 2019, 12, 1168
DOI: 10.3390/ma12071168

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.

Subject Areas

NDT Methods, Rebar location, Eddy-current method, GPR method

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.