GROUND-PENETRATING RADAR SHOWS CLEAR INSPECTION IMAGES

A new type of ground-penetrating radar is making waves in bridge deck and pavement inspection. State transportation departments and private building owners are using the system to determine rebar locations and locate defects with new levels of accuracy and less interpretation. In two new systems, electromagnetic pulses are sent into the pavement, where they are reflected at layer interfaces such as rebar and pavement bases. A computer-linked receiver then captures the reflections and records the data to determine layer thicknesses and detect voids.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08919526
• Corporate Authors:

  McGraw-Hill, Incorporated

  330 West 42nd Street
  New York, NY  United States  10036
• Authors:
  • Roe, A
• Publication Date: 1999-1-4

Language

• English

Media Info

• Features: Photos;
• Pagination: p. 21
• Serial:
  • ENR
  • Volume: 242
  • Issue Number: 1
  • Publisher: McGraw-Hill, Incorporated
  • ISSN: 0891-9526

Subject/Index Terms

• TRT Terms: Bridge decks; Ground penetrating radar; Inspection; Nondestructive tests; Pavements; Quality control; Reinforcing bars
• Subject Areas: Bridges and other structures; Design; Highways; Pavements; I23: Properties of Road Surfaces; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00759643
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 3 1999 12:00AM