SUPERCOVER CONCRETE: A COST EFFECTIVE METHOD OF PREVENTING REINFORCEMENT CORROSION

The paper describes a new design method called Supercover Concrete which should significantly reduce or eliminate the incidence of reinforcement corrosion in concrete structures. It involves using glass fibre reinforced plastic (GFRP) rebars at nominal cover depths to control surface crack widths while conventional steel reinforcement, situated at deep cover depths, will provide the tensile strength and will not be subject to corrosion. Investigations on single span, simply supported reinforced concrete beams made using this design show that GFRP rebars are effective in reducing surface crack widths to values recommended in BS8110 and Eurocode 2. Moreover, it would appear that introducing GFRP rebars in the concrete cover does not significantly affect either the structural strength or the deflections which occur. The structural strength, design crack width and deflections of the concrete beams can be predicted using the procedures given in BS8110. Life cycle costing studies on beams show that it is a cost effective option for preventing reinforcement corrosion. (A) For the covering abstract, see IRRD 892188.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/085404731X
• Corporate Authors:

  ROYAL SOCIETY OF CHEMISTRY

  THOMAS GRAHAM HOUSE, SCIENCE PARK
  CAMBRIDGE,   United Kingdom  CB4 4WF
• Authors:
  • ARYA, C
  • OFORI-DARKO, F K
  • PIRATHAPAN, G
  • VASSIE, PRW
• Conference:
  • CORROSION OF REINFORCEMENT IN CONCRETE CONSTRUCTION. PROCEEDINGS OF FOURTH INTERNATIONAL SYMPOSIUM, CAMBRIDGE, 1-4 JULY 1996. SPECIAL PUBLICATION NO 183
• Publication Date: 1996

Language

• English

Media Info

• Features: References;
• Pagination: p. 601-10

Subject/Index Terms

• TRT Terms: Beams; Concrete; Corrosion; Cracking; Durability; Fibers; Glass; Material reinforcement; Plastics; Reinforcing materials; Standards
• ITRD Terms: 3472: Beam; 4755: Concrete; 5252: Corrosion; 5211: Cracking; 5910: Durability; 4557: Fibre; 4547: Glass; 7454: Plastic material; 3471: Reinforcement (in mater); 187: Specification (standard)
• Subject Areas: Data and Information Technology; Materials;

Filing Info

• Accession Number: 00742893
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 0-85404-731-X
• Files: ITRD
• Created Date: Nov 26 1997 12:00AM