INTERFACIAL PHENOMENA IN STEEL FIBRE REINFORCED CEMENT. 1: STRUCTURE AND STRENGTH OF INTERFACIAL REGION

This paper describes a study of the structure, composition and strength of cement paste near the cement-steel interface of an embedded wire. Scanning electron microscopy of paste and mortar specimens shows that the interface does not change appreciably for curing times greater than a week and suggests enrichment of the interface with calcium hydroxide. X-ray diffraction provides evidence that this enrichment amounts to 20% to 40% of the concentration of calcium hydroxide in the bulk of the cement paste. The strength of the cement paste, deduced from indentation hardness measurements, shows that there is a marked decrease in strength within 0.75 mm from the wire surface. This appears to be a general feature of cement paste composites prepared with vibration. /Author/TRRL/

  • Availability:
  • Corporate Authors:

    Pergamon Press, Incorporated

    Maxwell House, Fairview Park
    Elmsford, NY  United States  10523
  • Authors:
    • Pinchin, D J
    • Tabor, D
  • Publication Date: 1978-1

Language

  • French

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00178619
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Sep 14 1978 12:00AM