Repair of concrete bridges with FRP

The use of fibre-reinforced polymers (FRPs) to repair concrete bridges is described. FRPs are made from high-strength fibres such as carbon, Kevlar or glass, embedded in a resin matrix. The two categories of FRP products used in the construction industry are described: wet lay-up and pre-cured sections. The use of FRP to improve the flexural strength of bridge decks and beams and to improve the seismic behaviour of bridge piers is described. The prevention of damage due to corrosion by wrapping piles or piers in FRP is outlined. A case study of the use of FRP by the Indiana Department of Transportation, USA, in reducing corrosion problems in the piers of highway bridges caused by defective storm drains is presented. FRP has also been used to compensate for construction errors. A single layer of QuakeWrap carbon-fibre fabric was bonded to the underside of a bridge in which half of the reinforcing steel in the slabs had been accidentally left out. (A)

Language

  • English

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Filing Info

  • Accession Number: 01043377
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Mar 6 2007 9:00AM