Periodic mapping of reinforcement corrosion in intrusive chloride contaminated concrete with GPR

Shuxian Hong, Wai Lok Lai, Gerd Wilsch, Rosemarie Helmerich, Robert Helmerich, Tobias Günther, Herbert Wiggenhauser

Research output: Journal article publicationJournal articleAcademic researchpeer-review

28 Citations (Scopus)

Abstract

This paper presents an experimental effort for developing a novel reinforcement corrosion monitoring technique based on Ground Penetrating Radar (GPR). Experiments were carried out to periodically monitor the accelerated reinforcement corrosion process with GPR. The data were processed in both time and time-frequency domains to investigate the tendencies of GPR signal attribute changes related with corrosion, moisture and chloride contamination. Data processing methods were proposed to visualize the reinforcement corrosion and chloride distribution with target specified signal attribute mapping. Half-Cell Potential (HCP) and Laser-Induced Breakdown Spectroscopy (LIBS) methods were employed to verify the GPR observations.
Original languageEnglish
Pages (from-to)671-684
Number of pages14
JournalConstruction and Building Materials
Volume66
DOIs
Publication statusPublished - 15 Sep 2014

Keywords

  • Chloride contamination
  • Ground penetrating radar
  • Periodic monitoring
  • Reinforcement corrosion

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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