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Health Assessment of a Pedestrian Bridge Deck using Ground Penetrating Radar

Author(s):






Medium: journal article
Language(s): English
Published in: Electronic Journal of Structural Engineering, , n. 1, v. 18
Page(s): 30-37
DOI: 10.56748/ejse.182261
Abstract:

Scanning concrete structures using ground penetrating radars (GPR) continues to be one of the most efficient methods for defect (i.e. crack, void and delamination) detection within concrete structures as well as detection of reinforcing bars damage due to corrosion. The aim of this study was to assess the structural health of a 45-year old pedestrian bridge deck. To achieve this, a number of experiments using a GPR system were conducted on a strong concrete floor with known construction drawings to detect cover depth and rebar orientations. After validating the GPR results through the experiments, the GPR system was used for nondestructive assessment of the pedestrian bridge deck. From the scanned results, the location and orientation of the reinforcing bar were established. In addition, the diameters of the bars was estimated by measuring the thickness of the hyperbola curves in the B-scans. The scanned output shows no signs of corrosion of reinforcement or damage of concrete in the form of delamination or cracking.

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: 10.56748/ejse.182261.
  • About this
    data sheet
  • Reference-ID
    10778751
  • Published on:
    12/05/2024
  • Last updated on:
    12/05/2024
 
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