A comparative experimental investigation of concrete, reinforced-concrete and steel-fibre concrete pipes under three-edge-bearing test

Haktanir T., Ari K., Altun F., Karahan O.

CONSTRUCTION AND BUILDING MATERIALS, vol.21, no.8, pp.1702-1708, 2007 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 21 Issue: 8
  • Publication Date: 2007
  • Doi Number: 10.1016/j.conbuilmat.2006.05.031
  • Journal Name: CONSTRUCTION AND BUILDING MATERIALS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1702-1708
  • Keywords: concrete pipes, reinforced-concrete pipes, steel-fibre concrete pipes, three-edge-bearing strength, crack characteristics
  • Kayseri University Affiliated: No

Abstract

Three-edge-bearing and crack size measurement tests were carried out on plain concrete, reinforced -concrete, and steel-fibre concrete pipes of 500 mm diameters. The average three-edge-bearing strength and crack size of steel-fibre concrete pipes having steel fibres of RC80/60-BN type at a dosage of 25 kg/m(3) turned out to be 82% greater and 47% smaller than those of plain concrete pipes, and 6% greater and 15% smaller than those of reinforced-concrete pipes, respectively. Tests on those steel-fibre concrete pipes having a steel fibres dosage of 40 kg/m(3) revealed that a steel fibres dosage of 25 kg/m(3) seems to be close to optimum because a 60% increase in the amount of steel fibres engenders only minor improvements. By these findings, steel-fibre concrete pipes are more economical than and mechanically and physically superior to reinforced-concrete pipes. (c) 2006 Elsevier Ltd. All rights reserved.