FIBROUS CONCRETE BRIDGE DECKS

The properties of concrete materials containing glass or steel fibres are discussed and examples of their uses given. Permanent soffit formwork made for glass fibre reinforced concrete has been successfully used on 2 road bridges in Sussex. The panels could be man handled, provided a working platform for steel fixers and eliminated the need for a temporary support system. Steel fibre reinforced concrete has not yet been used in total depth construction for highway bridges, but calculations show that a bridge deck of 150mm of such material would have the same strength as standard 212 mm reinforced concrete. Thus, a saving in dead weight could considerably alter primary structural sections. Two examples are given of the use of steel fibre concrete as a wearing surface to existing bridges. It is particularly useful where salting and studded types cause degradation of blacktop surfaces. Conventional gunite equipment can be used to spray fibre reinforced concrete onto structures requiring quick, economical repair of damage from weather, fire or mechanical abrasion. Other uses include expansion joint abrasion resistance requirements, and in composite construction, combined with conventional reinforcing systems. /TRRL/

  • Availability:
  • Corporate Authors:

    Morgan-Grampian (Professional Press) Limited

    Morgan-Grampian House, Calderwood Street
    London SE18 6QH,   England 
  • Authors:
    • Beckett, R E
  • Publication Date: 1974-4

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00081482
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: May 1 1975 12:00AM