FEASIBILITY OF EVALUATING THE PERFORMANCE OF FIBER REINFORCED PLASTIC (FRP) WRAPPED REINFORCED CONCRETE COLUMNS USING GROUND PENETRATING RADAR (GPR) AND INFRARED (IR) THERMOGRAPHY TECHNIQUES

The feasibility of using two nondestructive evaluation techniques, ground penetrating radar (GPR) and Infrared (IR) thermography, was recently attempted for assessing the performance of some fiber reinforced plastic (FRP) wrapped reinforced concrete columns on a bridge structure in Owego, New York. In addition, embedded instrumentation in the FRP wrapped columns is also being utilized for periodic monitoring of the columns. This paper discusses the findings of the IR and GRP feasibility surveys. It was concluded that both methods can be powerful tools for detecting and assessing various types of deterioration in FRP wrapped concrete columns. The GPR technique can be a useful tool for tracking progressive deterioration of the concrete within the FRP wrapped columns, particularly delaminations, provided a planned monitoring scheme is followed. The IR technique is very effective in detecting disbondment, blisters, and shallow defects (delaminations) in such components. Entrapped moisture between the wrap and the concrete can also be detected. However, defects located deep within the concrete may not be reliably detected using IR technique.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/1566769493
• Supplemental Notes:
  • This entry in the TRIS database is made from the hardback copy of the conference proceedings, which are also available on CD-ROM.
• Corporate Authors:

  Technomic Publishing Company, Incorporated

  851 New Holland Avenue, Box 3535
  Lancaster, PA  United States  17604
• Authors:
  • Jackson, D
  • Islam, M
  • Alampalli, S
• Conference:
  • Structural Materials Technology IV - An NDT Conference
  • Location: Atlantic City, New Jersey
  • Date: 2000-2-28 to 2000-3-3
• Publication Date: 2000

Language

• English

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 390-395

Subject/Index Terms

• TRT Terms: Blistering; Columns; Defects; Delamination; Deterioration; Feasibility analysis; Fiber reinforced plastics; Flaw detection; Ground penetrating radar; Infrared analysis; Instrumentation; Monitoring; Performance evaluations; Reinforced concrete; Thermographs
• Uncontrolled Terms: Disbondment; Entrapped moisture; Wrap
• Geographic Terms: New York (State)
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00793152
• Record Type: Publication
• ISBN: 1566769493
• Files: TRIS
• Created Date: May 9 2000 12:00AM