Title:
Designing Fiber Reinforced Concrete Based on Toughness Characteristics
Author(s):
J. Moens and D. Nemegeer
Publication:
Concrete International
Volume:
13
Issue:
11
Appears on pages(s):
38-43
Keywords:
charts; fiber reinforced concretes; flexural strength; toughness; metal fibers; mix proportioning; structural design; Design
DOI:
Date:
11/1/1991
Abstract:
The behavior of steel fiber concrete is governed by the energy absorption of the reinforced brittle matrix. The toughness index is a measure of the energy-absorption capacity, but as such is not a practical engineering design parameter. A toughness rating is proposed as an alternative tool for design purposes. Its uses may be extended to establishing identity charts for particular steel fiber types, which are useful for fiber concrete mix design. A similar rating is introduced for the equivalent flexural strength values calculated by the Japanese specification on toughness measurement.