Non-contact ultrasonic imaging of post-tensioned bridges to investigate corrosion and void status

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Abstract

Corrosion of the nation's transportation infrastructure is a widespread and costly problem. Recent corrosion problems in post-tensioned bridge structures (Figure 1) have increased the need for a reliable method for determining grout voids and level of corrosion in post-tensioned tendons. Corrosion monitoring techniques such as half-cell potential and corrosion rate measurements face problems when used in this type of structure and standard NDE (non-destructive evaluation) methods such as impact-echo have also encountered problems. This study begins the evaluation of a method called C-Scan ultrasonic imaging to evaluate grouted post-tensioned tendons. While this paper focuses on post-tensioning applications, the C-Scan technique may be valuable for investigation of any type of reinforced concrete structure.

Original languageEnglish (US)
Title of host publicationProceedings of IEEE Sensors
Pages487-492
Number of pages6
Volume2
Edition1
StatePublished - Dec 1 2003
EventSecond International Conference on Sensors: IEEE Sensors 2003 - Toronto, Ont., Canada
Duration: Oct 22 2003Oct 24 2003

Other

OtherSecond International Conference on Sensors: IEEE Sensors 2003
CountryCanada
CityToronto, Ont.
Period10/22/0310/24/03

Keywords

  • Corrosion
  • Inspection
  • Non-Contact Ultrasound
  • Post-Tensioned Bridges
  • Reinforced Concrete Structure

Fingerprint Dive into the research topics of 'Non-contact ultrasonic imaging of post-tensioned bridges to investigate corrosion and void status'. Together they form a unique fingerprint.

Cite this