REMOTE DETECTION OF DEFECTS IN UNDERSIDE OF BRIDGE DECKS OVER RAILWAY TRACK

Infrared thermography has various applications within the railway and civil engineering areas. One such application was explored in this paper. A survey was carried out to investigate the presence of temperature anomalies that may indicate the existence of delaminations on the underside of a concrete bridge deck. A case study is reported on an infra-red survey undertaken from the ground, investigating a number of the bridge spans. The brief required an infra-red thermographic survey of Span 5 - in the event, the technique was so time efficient that infra-red and visual images were taken over 5 spans concentrating on 1 span where there were known areas of delaminations. The known areas of delamination were found, as well as a number of other areas of possible delamination. The delaminations were found by the infra-red thermographic survey despite (a) the worst possible ambient temperature conditions and (b) the infra-red camera could not be positioned far enough away to survey all the span at the same time. For the covering abstract see ITRD E123713.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0947644458
• Corporate Authors:

  ENGINEERING TECHNICS PRESS

  46 CLUNY GARDENS
  EDINBURGH,   United Kingdom  EH10 6BN
• Authors:
  • CLARK, M R
  • MCCANN, D M
  • FORDE, M C
• Publication Date: 2001

Language

• English

Media Info

• Features: References;
• Pagination: 6 p.
• Serial:
  • PROCEEDINGS OF THE INTERNATIONAL CONFERENCE RAILWAY ENGINEERING 2001, HELD LONDON, UK, 30 APRIL - 1 MAY 2001 - CDROM
  • Publisher: ENGINEERING TECHNICS PRESS

Subject/Index Terms

• TRT Terms: Bridge decks; Concrete; Conferences; Defects; Deterioration; Infrared radiation; Nondestructive tests; Photography; Railroad tracks; Recording; Temperature; Test procedures
• ITRD Terms: 3482: Bridge deck; 4755: Concrete; 8525: Conference; 5238: Defect (tech); 5255: Deterioration; 6797: Infrared; 6216: Non destructive testing; 6751: Photography; 1062: Railway track; 6969: Recording; 6722: Temperature; 6288: Test method
• Subject Areas: Data and Information Technology; Railroads;

Filing Info

• Accession Number: 00985496
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 0-947644-45-8
• Files: ITRD
• Created Date: Feb 4 2005 12:00AM