TOUGHNESS DETERMINATION FOR THE FIBRE REINFORCED CONCRETE

Methods currently used to evaluate the toughness of fibre reinforced concrete (frc) are reviewed. Parameters representing the fracture energy determined from the area under the load-displacement curve obtained from conventional laboratory tests are discussed. An improved toughness parameter is proposed based on the secant compliance (the displacement/load ratio), rather than judging by load or displacement alone as by conventional methods. The new parameter is shown to represent the toughness properties of frc in a more consistent manner than other similar methods when applied to a wide range of idealised load-displacement curves. However, like other toughness parameters determined from the area under the load-displacement curve, its use should be limited to comparisons among results obtained under the same test conditions.(a)

  • Availability:
  • Corporate Authors:

    Longman Group UK Limited

    Longman House, Burnt Mill
    Harlow, Essex,   England 
  • Authors:
    • Wang, Yinhi
    • Backer, S
  • Publication Date: 1989-2

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00487843
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Sep 30 1989 12:00AM