FIBRE SKIN REINFORCES CONCRETE TENSION ZONE

This article gives a brief account of a new method of reinforcing concrete that has been developed at the University of Salford. The method consists of enclosing the surface area of the tension zone of a unit in a thin envelope of fibre reinforced cement, which allows the constituent materials (steel and concrete) in the unit to be utilized more efficiently and allows up to 30% savings in the cost of production of concrete units. The method is reported to delay and reduce cracking and also to reduce the amount of deflection; it also reduces the amount of formwork necessary since the fibre-reinforced cement units can be used as shuttering. Reference is made to research into four types of fibre (carbon, steel, asbestos and glass) and the need for two-dimensional distribution of fibres for best efficiency. Glass and asbestos fibres were found to be most suitable and capable of manufacture into sheets 5.6mm thick with the required minimum flexural strength of 20mm/m2. An account is given of the manufacture of structural members by the new method and the article concludes by discussing their performance. It is claimed that the method provides a form of "prestressing" and can lead to a reduction in size of beams and lighter, cheaper and safer structural members. /TRRL/

  • Availability:
  • Corporate Authors:

    IPC Building and Contract Journals Limited

    32 Southwark Bridge Road
    London SE1 9EX,   England 
  • Authors:
    • Gosney, J
  • Publication Date: 1974-12-5

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 40-71
  • Serial:
    • CONTRACT JOURNAL
    • Volume: 262
    • Issue Number: 4970
    • Publisher: Reed Business Information, Limited
    • ISSN: 0010-7859

Subject/Index Terms

Filing Info

  • Accession Number: 00096773
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Jul 15 1975 12:00AM