Ultrasonic imaging-A novel way to investigate corrosion status in post-tensioned concrete members

Shivprakash Iyer, Andrea J. Schokker, Sunil K. Sinha

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The problem of durability in reinforced concrete structures is most prevalent in chloride-induced corrosion of reinforcing steel. Traditional corrosion monitoring techniques such as half-cell potential and corrosion rate measurements often fail when used in this type of structure and standard nondestructive testing methods such as impact-echo have also encountered problems. This study introduces a new method called C-scan imaging to evaluate grouted post-tensioned tendons. Preliminary investigations on lab specimens show promise for the technique.

Original languageEnglish (US)
Pages (from-to)197-217
Number of pages21
JournalJournal of the Indian Institute of Science
Volume82
Issue number5-6
StatePublished - Sep 1 2002

Keywords

  • Impact echo
  • NDT (nondestructive testing)
  • Ultrasound bridge inspection system
  • Ultrasound sensing
  • Wireless ultrasound C-scan imaging system

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