LABORATORY RADAR EVALUATION OF CONCRETE DECKS AND PAVEMENTS WITH AND WITHOUT ASPHALT OVERLAY

This paper presents the preliminary results of an ongoing study using Ground Penetrating Radar (GPR) for locating subsurface anomalies in concrete bridge decks and pavements with and without asphalt overlay. Specimens were cast in the laboratory with varying internal conditions such as with or without reinforcement and with air- or water-filled cracks. These specimens simulate the conditions of field bridge decks and pavements. The radar waveform obtained from these specimens were studied to determine the effect of subsurface cracks on the radar waveform and to assess the sensitivity of the technique.

• Corporate Authors:

  Technomic Publishing Company, Incorporated

  851 New Holland Avenue, Box 3535
  Lancaster, PA  United States  17604
• Authors:
  • Halabe, U B
  • Chen, H L
  • Allu, M K
  • Pei, L
• Conference:
  • Structural Materials Technology. An NDT Conference.
  • Location: San Diego, CA
  • Date: 1996-2-20 to 1996-2-23
• Publication Date: 1996

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 373-377

Subject/Index Terms

• TRT Terms: Asphalt; Bridge decks; Concrete; Cracking; Deterioration; Evaluation; Flaw detection; Geological surveying; Ground penetrating radar; Laboratory studies; Overlays (Pavements); Pavements; Reinforced concrete; Specimens; Waveform analysis
• Old TRIS Terms: Waveforms
• Subject Areas: Bridges and other structures; Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00725906
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 16 1996 12:00AM