CORROSION MONITORING OF REBARS IN AN EXISTING CONCRETE STRUCTURE

According to the research results by the authors, the electrochemical characteristics (E:natural potential, Rp:polarization resistance and Rs:solution resistance) measured from the concrete surface consist of two factors: the electrochemical characteristics of the reinforcement and cover concrete. In order to achieve high accuracy of corrosion prediction it is necessary to examine the above two factors in detail and preferably to develop the investigation technique of existing concrete structures. This paper is based on the corrosion monitoring results of an existing 30 year old structure, showing a case where dry concrete cover influences the E and Rp values, making them more noble and larger respectively. Furthermore, drill-hole method, which is very useful to investigate the influence of the cover concrete, is also reported. (A) For the covering abstract see IRRD 861706.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0903132206
• Corporate Authors:

  BRITISH INSTITUTE OF NON-DESTRUCTIVE TESTING

  1 SPENCER PARADE
  NORTHAMPTON,   United Kingdom  NN1 5AA
• Authors:
  • NAGAYAMA, M
  • Tamura, H
  • SHIMOZAWA, K
• Conference:
  • CONFERENCE PROCEEDINGS OF THE BRITISH INSTITUTE OF NON-DESTRUCTIVE TESTING INTERNATIONAL CONFERENCE, NDT IN CIVIL ENGINEERING 14-16 APRIL 1993, LIVERPOOL UNIVERSITY. VOLUME 2
• Publication Date: 1993

Language

• English

Media Info

• Features: References;
• Pagination: p. 621-31

Subject/Index Terms

• TRT Terms: Conferences; Corrosion; Detection and identification; Detectors; Deterioration; Field tests; Loss and damage; Nondestructive tests; Reinforced concrete; Steel; Structures; Test procedures
• ITRD Terms: 3352: Building (structure); 8525: Conference; 5252: Corrosion; 1614: Damage; 9115: Detection; 5255: Deterioration; 6226: In situ; 6216: Non destructive testing; 4794: Reinforced concrete; 4542: Steel; 6288: Test method
• Subject Areas: Bridges and other structures;

Filing Info

• Accession Number: 00644625
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 0-903132-20-6
• Files: ITRD
• Created Date: Apr 18 1994 12:00AM