THE REPAIR OF REINFORCED CONCRETE STRUCTURES AFFECTED BY ALKALI-AGGREGATE REACTION

The occurrence of damage as a result of alkali-aggregate reaction has been identified in the Western and Eastern Cape and also the Witwatersrand area. Very little is known of how to repair structures that have deteriorated as a result of alkali-aggregate reaction. The paper describes the effects of alkali-aggregate reaction on exposed reinforced concrete structures and some of the techniques that have been developed to effect repairs to structures in the Witwatersrand area. These include improvement of the plumbing and drainage of structures; removal and replacement of defective reinforcement and concrete; and epoxy resin injection. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00097845
• Corporate Authors:

  South African Institute of Civil Engineers

  P.O. Box 1187, 75 Marshall Street
  Johannesburg,   South Africa 
• Authors:
  • BLIGHT, G E
  • Alexander, M G
  • Ralph, T
• Publication Date: 1984-11

Media Info

• Features: Figures; Photos; References;
• Pagination: p. 525
• Serial:
  • CIVIL ENGINEER IN SOUTH AFRICA
  • Volume: 26
  • Issue Number: 11
  • Publisher: South African Institution of Civil Engineers
  • ISSN: 0009-7845

Subject/Index Terms

• TRT Terms: Aggregates; Alkali; Alkali aggregate reactions; Bridges; Chemical reactions; Concrete; Drainage; Epoxy resins; Reinforced concrete; Repairing; Steel; Structures
• Uncontrolled Terms: Injection (Materials); Repairs; Replacing
• ITRD Terms: 4577: Aggregate; 7353: Alkali; 3455: Bridge; 4755: Concrete; 3355: Engineering structure; 7468: Epoxy resin; 3617: Injection (mater); 7156: Reaction (chem); 4794: Reinforced concrete; 3635: Repair; 4542: Steel
• Subject Areas: Bridges and other structures; Geotechnology; Highways; Hydraulics and Hydrology; Maintenance and Preservation; Materials; Planning and Forecasting; I32: Concrete; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00395565
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Nov 30 1985 12:00AM