RECENT ADVANCES IN DETECTING DELAMINATION IN CONCRETE BRIDGE DECKS

THIS REPORT DESCRIBES A RESEARCH EFFORT DIRECTED TOWARD FINDING A MEANS FOR DETECTING DELAMINATION, ONE OF THE MORE MORE SERIOUS FORMS OF DETERIORATION FOUND IN CONCRETE BRIDGE DECKS. IT DESCRIBES (1) SOME OF THE METHODS EMPLOYED FOR DELAMINATION DETECTION, (2) THE DEVELOPMENT OF THE BASIC COMPONENTS REQUIRED FOR AUTOMATIC DETECTION, AND (3) THE COMPLETED INSTRUMENT RESULTING FROM THE RESEARCH. THE DETECTING UNIT IS IN THE FORM OF A PUSHCART, ROUGHLY THE SIZE AND SHAPE OF A POWER LAWN MOWER. ALSO INCLUDED IS AN EVALUATION OF THE DEVICE, ACCOMPLISHED BY MEASURING SPECIALLY CONSTRUCTED TEST SLABS AND NUMEROUS IN-SERVICE BRIDGES. THE EVALUATION TESTS INDICATE THAT THE INSTRUMENT PROVIDES A PRACTICAL AND EFFECTIVE MEANS FOR THE ROUTINE DETECTION BY MAINTENANCE PERSONNEL OF BRIDGE DECK DELAMINATION. THE INSTRUMENT WAS FOUND TO BE INSENSITIVE TO DECK TEXTURE, OR TO THIN ASPHALTIC SURFACING LAYERS. THE OPERATION OF THE DETECTOR IS NOT IMPAIRED BY ROLLING SPEEDS UP TO 10 MPH. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/sr/sr116/116-006.pdf
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309018439
• Supplemental Notes:
  • Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Moore, William M
  • Swift, Gilbert
  • Milberger, Lionel J
• Conference:
  • Western Summer Meeting
  • Location: Sacremento California, United States
  • Date: 1970-8-17 to 1970-8-19
• Publication Date: 1971

Media Info

• Media Type: Print
• Pagination: p 29
• Monograph Title: Improving Pavement and Bridge Deck Performance
• Serial:
  • Highway Research Board Special Report
  • Issue Number: 116
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Bridge decks; Concrete; Defects; Delamination; Detectors; Pavement distress; Pavements; Stripping (Pavements); Surfaces
• Old TRIS Terms: Detecting devices
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00207250
• Record Type: Publication
• ISBN: 0309018439
• Files: TRIS, TRB, ATRI
• Created Date: Jun 29 1971 12:00AM