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Non-destructive Test Methods for Corrosion Detection in Reinforced Concrete Structures

Author(s): (MSc, PhD, Senior Engineer, Norwegian Public Roads Administration , Abels gate 5, NO-7030 Trondheim)
(MSc, PhD, Research Scientist, SINTEF Community, Department Architecture, Materials and Structures , NO-7491 Trondheim)
(MSc, PhD, Professor, Norwegian University of Science and Technology , Department of Structural Engineering , Richard Birkelandsvei 1a, NO-7491 Trondheim)
Medium: journal article
Language(s): English
Published in: Nordic Concrete Research, , n. 1, v. 62
Page(s): 41-61
DOI: 10.2478/ncr-2019-0005
Abstract:

Several inspection methods can be used to assess the corrosion state of steel reinforcement in concrete. Especially for periodical field surveys and monitoring, non-destructive testing (NDT) methods are to be preferred as they do not cause any or very limited damage to the existing concrete. In this paper, the corrosion state of three reinforced concrete beams exposed to marine environment for 25 years was evaluated by measuring three parameters; electrochemical potential, concrete resistivity and corrosion rate. The measurements were performed with commercial devices. It was found that all devices are applicable for field inspections. Among the methods selected for the study, the electrochemical potential measured in a fine grid and analysed statistically offered the best possibility of evaluating the corrosion state; preferably in combination with selected excavations for determination of the level of corrosion.

Structurae cannot make the full text of this publication available at this time. The full text can be accessed through the publisher via the DOI: 10.2478/ncr-2019-0005.
  • About this
    data sheet
  • Reference-ID
    10705840
  • Published on:
    19/02/2023
  • Last updated on:
    19/02/2023
 
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