FIBRE REINFORCEMENT FOR CONCRETE

THE ARTICLE REVIEWS THE CURRENT POSITION REGARDING THE USE OF FIBROUS REINFORCEMENT FOR CONCRETE. ASBESTOS HAS BEEN EXCLUDED. A TABLE IS PROVIDED WITH A LIST OF MATERIALS USED AS FIBROUS REINFORCEMENT FOR CONCRETE, AND THEIR RELEVANT PROPERTIES ARE COMPARED. THE LIST IS CONFINED TO GLASS, STEEL AND POLYPROPYLENE, THE LATTER BEING USED ONLY WHERE IMPROVED IMPACT RESISTANCE OR THIXOTROPHY IS DEMANDED. IT IS ALSO UNAFFECTED BY ALKALINE ENVIRONMENT. THOUGH STEEL FIBRES RUST WHERE THEY ARE EXPOSED TO THE SURFACE CAUSING RUST STAINING WHICH IS UNSIGHTLY, THERE IS NO EVIDENCE TO SUGGEST THAT IT CAUSES ANY PROBLEMS. THE PROBLEM OF ALKALINE ATTACK IS CRITICAL IN CASE OF GLASS FIBRE AND IT SHOULD NOT BE USED TO REINFORCE CONCRETE WITHOUT REDUCING ITS SENSITIVITY. THE IMPROVEMENT IN FIBRE REINFORCED CONCRETE PERFORMANCE MAY BE DUE TO THE ABILITY OF FIBRES TO ACT AS CRACK ARRESTORS THEREBY IMPROVING THE STRENGTH OF THE CEMENT MATRIX AND ALSO DUE TO THE EFFECTIVENESS OF THE FIBRES AS NORMAL REINFORCEMENT. THE ARTICLE ALSO INCLUDES A DESCRIPTION OF SEVERAL METHODS OF FIBRE REINFORCED CONCRETE USED BY DIFFERENT FIRMS.

  • Availability:
  • Corporate Authors:

    New Zealand Portland Cement Association

    Securities House, 126 The Terrace, P.O. Box 3644
    Wellington,   New Zealand 
  • Publication Date: 1974-2

Media Info

  • Features: Photos; References; Tables;
  • Pagination: p. 8-11
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00083374
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: May 1 1989 12:00AM