USE OF NONDESTRUCTIVE METHODS FOR LARGE SCALE BRIDGE DECK EVALUATION

The project described herein involved evaluation a bridge deck for a major river crossing. The deck structure is 60 ft wide by 13,000 ft long. Infrared thermography (IR) and ground penetrating radar (GPR) were selected for the deck condition evaluation in order to obtain full coverage of the deck economically, and to minimize impact on the bridge users. The IR survey was used to detect near-surface delaminations based on differential heating from solar radiation. The GPR survey was used to confirm infrared findings, and to locate areas of low rebar cover. Results of the surveys were used to identify areas of the deck for more detailed testing with cores, half cell tests, and sonic evaluations. The combined results of the surveys were used to assess the overall condition of the deck and to develop deck rehabilitation plans. The paper discusses the equipment used, the survey content, the type of data generated, data analysis, and the results obtained.

• Supplemental Notes:
  • Full conference proceedings available on CD-ROM.
• Corporate Authors:

  National Center for Asphalt Technology

  Auburn University, 277 Technology Parkway
  Auburn, AL  United States  36830
• Authors:
  • Maser, K
  • Debski, G
  • Klag, A
  • Tabrizi, K
  • Gangi, V
• Conference:
  • Second International Symposium on Maintenance and Rehabilitation of Pavements and Technological Control. Segundo Simposio Sobre Manutencao e Rehabilitacao de Pavimentos e Controle Technologico
  • Location: Auburn, Alabama
  • Date: 2001-7-29 to 2001-8-1
• Publication Date: 2001

Language

• English

Media Info

• Features: Figures; Photos; References;
• Pagination: 15p

Subject/Index Terms

• TRT Terms: Bridge decks; Bridge engineering; Delamination; Ground penetrating radar; Infrared imagery; Nondestructive tests; Rehabilitation; Structural analysis
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00972433
• Record Type: Publication
• Report/Paper Numbers: 01-156
• Files: TRIS
• Created Date: Apr 29 2004 12:00AM