Pseudo-ductile behavior of steel fiber reinforced high-strength concretes

ZERBINO, R.; GIACCIO, G.; GETTU, R.

The Indian Concrete Journal

The Associated Cement Companies Ltd

Lugar: Mumbai; Año: 2006 vol. 80 p. 37 - 43

0019-4565

The benefits produced by the use of high strength concrete in structures include the increase in the load carrying capacity, durability and, consequently, longer service lives. Nevertheless, concrete with higher strength exhibits more brittle behavior. This phenomenon can be compensated by the incorporation of distributed steel fiber reinforcement. This paper analyzes the behavior of steel fiber reinforced high-strength concrete, with emphasis on toughness parameters determined through the ASTM C 1018 procedure. The effects of matrix strength level, fiber type and dosage have been studied. The geometry of the specimens and loading configuration have also been varied. In addition, the failure mechanism under compressive loading has been analyzed using the critical stress concept.