DIAGNOSIS, PREVENTION AND REPAIR OF DETERIORATION IN CONCRETE BRIDGES - AN OVERVIEW. SINO-BRITISH HIGHWAYS AND URBAN TRAFFIC CONFERENCE. PAPERS PRESENTED AT THE CONFERENCE HELD IN BEIJING 17TH-22ND NOVEMBER 1986

The working life of concrete bridge structures worldwide has been significantly threatened and reduced by various forms of deterioration. Damage such as spalling or delamination of the concrete surface can be accompanied by rust staining, leaching or surface erosion. Deterioration in prestressed or post-tensioned bridges presents the additional risk of sudden failure if tendons are affected. This paper outlines deterioration processes, and factors influencing their occurrence. Techniques for surveying concrete, to diagnose causes and estimate future spread of damage, are reviewed. Options are presented for repair and inspection/maintenance programmes. Finally the lessons learnt are used to recommend methods of designing bridges to withstand their environments for an increased working life. (Author/TRRL)

• Corporate Authors:

  INSTITUTION OF HIGHWAYS & TRANSPORTATION

  6 ENDSLEIGH STREET
  LONDON,   United Kingdom  WC1H 0DZ
• Authors:
  • POCOCK, D C
  • Gibbs, B
• Publication Date: 1986

Media Info

• Features: References;
• Pagination: 6 p.

Subject/Index Terms

• TRT Terms: Alkali; Bridges; Carbonation; Chemical reactions; Chlorides; Conferences; Corrosion; Detection and identification; Detectors; Deterioration; Freeze thaw durability; Maintenance; Nondestructive tests; Oxides; Prevention; Reinforced concrete; Repairing; Silicon; Surveillance; Test procedures
• ITRD Terms: 7353: Alkali; 3455: Bridge; 7312: Carbonate; 8525: Conference; 5252: Corrosion; 9115: Detection; 5255: Deterioration; 2577: Freezing thawing cycle; 7314: Halide; 3847: Maintenance; 6216: Non destructive testing; 7372: Oxide; 9149: Prevention; 7156: Reaction (chem); 4794: Reinforced concrete; 3635: Repair; 7148: Silicon; 9101: Surveillance; 6288: Test method
• Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation; Security and Emergencies;

Filing Info

• Accession Number: 00493159
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: May 31 1990 12:00AM