Fracture energy-based optimisation of steel fibre reinforced concretes

KÖKSAL F., ŞAHİN Y., GENÇEL O., YİĞİT İ.

ENGINEERING FRACTURE MECHANICS, vol.107, pp.29-37, 2013 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 107
  • Publication Date: 2013
  • Doi Number: 10.1016/j.engfracmech.2013.04.018
  • Journal Name: ENGINEERING FRACTURE MECHANICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.29-37
  • Keywords: Fracture energy, Optimisation, Steel fibre reinforced concrete, Steel fibre tensile strength, SELF-COMPACTING CONCRETE, MECHANICAL-PROPERTIES, FLY-ASH, TOUGHNESS, MODEL, COMPRESSION, STRENGTH
  • Yozgat Bozok University Affiliated: Yes

Abstract

Aim of study was to determine combined effect of water/cement ratio, steel fibre tensile strength and volume fraction of fibre on mechanical behaviour of steel fibre reinforced concrete (SFRC), and to find optimum solutions for design parameters while fracture energy of concrete is maximised. Experimental design was done by using Response Surface Method (RSM), which is a promising approach for optimising SFRCs to meet several performance criteria such as maximum fracture energy. It was observed that matrix strength or water/cement ratio directly influenced performance of steel fibres. Both matrix and fibre tensile strengths must be taken into account as criteria. (C) 2013 Elsevier Ltd. All rights reserved.