EVALUATION OF BOND RETAINAGE IN PORTLAND CEMENT CONCRETE OVERLAYS USING INFRARED THERMOGRAPHY AND GROUND PENETRATING RADAR

The purpose of this project was to evaluate the location and quantities of debonding in selected portland cement concrete (PCC) overlays. The project entailed an infrared thermographic survey and a ground penetrating radar survey of the PCC overlays to locate areas of debonding between the overlays and the original pavement. An infrared scanner is capable of locating these areas because of the temperature differential which is established between bonded and debonded areas under certain environmental conditions. A conventional video inspection of the top surface of the pavement was also completed in conjunction with the infrared thermographic survey to record the visual condition of the pavement surface. The ground penetrating radar system is capable of locating areas of debonding by detecting return wave forms generated by changes in the dielectric properties at the PCC overlay original pavement interface. This report consists of two parts; a text and a set of plan sheets. The text summarizes the procedures, analyses and conclusions of the investigation. The plan sheets locate specific areas of debonding, as identified through field observations.

• Record URL:
  • http://www.iowadot.gov/research/reports/Year/2003andolder/fullreports/hr537.pdf#search=%22evaluation%20of%20bond%20retainage%20in%20portland%20cement%20concrete%20overlays%20using%20infrared%20thermography%20and%20ground%20penetrating%20radar%22
• 
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/22162374
• Corporate Authors:

  Brice, Petrides-Donohue, Incorporated

  191 West Fifth Street
  Waterloo, IA  United States  50701

  Iowa Department of Transportation

  800 Lincoln Way
  Ames, IA  United States  50010
• Publication Date: 1989-6

Media Info

• Features: Appendices; Figures; Tables;
• Pagination: v.p.

Subject/Index Terms

• TRT Terms: Cracking; Debonding; Ground penetrating radar; Infrared radiation; Location; Overlays (Pavements); Portland cement concrete; Temperature; Thermographs
• Old TRIS Terms: Video inspection
• Subject Areas: Design; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I32: Concrete;

Filing Info

• Accession Number: 00488627
• Record Type: Publication
• Files: TRIS, STATEDOT
• Created Date: Oct 31 1989 12:00AM