Acoustic testing of concrete bridge decks for detection of delamination

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

Abstract

Impact Echo (IE), Ultrasonic (US) Echo (two measurement systems: a single probe and a linear array system) were used to detect shallow and deep delaminations in a concrete specimen. The test specimen is a section of a deteriorated bridge deck preserved from the demolition of a 45-year old prestressed box girder bridge in Berlin, Germany. The IE and US (single probe) data collection was done automatically utilizing a scanner system, while the testing with US linear array system was conducted manually. A number of cores were extracted to provide ground-truth information and the basis to assess the effectiveness of each test method in detecting and characterizing delaminations. In this study, IE yielded an overall satisfactory assessment however, individual spectra at single measurement points were often difficult to interpret. US (single probe) could detect deep delaminations but not the shallow ones. The shallow delaminations could be only indirectly suspected, where the back-wall reflections were weakened or vanished. US Linear Array could detect the location and extent of deep delimitations and provided indications of shallow ones.

Original languageEnglish (US)
Title of host publicationBridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management
PublisherTaylor and Francis - Balkema
Pages1686-1690
Number of pages5
ISBN (Print)9780415621243
DOIs
StatePublished - Jan 1 2012
Event6th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2012 - Stresa, Lake Maggiore, Italy
Duration: Jul 8 2012Jul 12 2012

Publication series

NameBridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management

Other

Other6th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2012
CountryItaly
CityStresa, Lake Maggiore
Period7/8/127/12/12

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality

Fingerprint Dive into the research topics of 'Acoustic testing of concrete bridge decks for detection of delamination'. Together they form a unique fingerprint.

  • Cite this

    Shokouhi, P. (2012). Acoustic testing of concrete bridge decks for detection of delamination. In Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management (pp. 1686-1690). (Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management). Taylor and Francis - Balkema. https://doi.org/10.1201/b12352-245