The influences of matrix and steel fibre tensile strengths on the fracture energy of high-strength concrete


ŞAHİN Y. , KÖKSAL F.

CONSTRUCTION AND BUILDING MATERIALS, vol.25, no.4, pp.1801-1806, 2011 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 25 Issue: 4
  • Publication Date: 2011
  • Doi Number: 10.1016/j.conbuildmat.2010.11.084
  • Title of Journal : CONSTRUCTION AND BUILDING MATERIALS
  • Page Numbers: pp.1801-1806
  • Keywords: High-strength concrete, Steel fibre, Fracture energy, Characteristic length, Bending strength, REINFORCED-CONCRETE, TOUGHNESS

Abstract

This research discusses the effects of both steel fibre and matrix strengths on fracture energy of high-strength concrete. The variables of experimental study were water/cement ratio, steel fibre strength and steel fibre volume fraction. The water/cement ratios of 0.35, 0.45 and 0.55, and steel fibres with a tensile strengths of 1100 and 2000 MPa were used and volume fractions of steel fibre were 0.33%, 0.67% and 1%. Mechanical properties, fracture energy and characteristic length of concretes were investigated.