Pull-out behavior of prestressing strands in steel fiber reinforced concrete


BARAN E. , AKIŞ T., YEŞİLMEN S.

CONSTRUCTION AND BUILDING MATERIALS, cilt.28, ss.362-371, 2012 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 28 Konu: 1
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.conbuildmat.2011.08.040
  • Dergi Adı: CONSTRUCTION AND BUILDING MATERIALS
  • Sayfa Sayıları: ss.362-371

Özet

This paper presents the results of an experimental study investigating the effects of steel fibers on the mechanical properties of concrete and the enhancement of bond strength of prestressing strands in steel fiber reinforced concrete (SFRC). The first part of the experimental program consisted of compression, tension and flexural tests on SFRC. Two types of steel fibers with 30 mm and 60 mm fiber lengths were used with five different fiber contents. The second part of the study consisted of simple pull-out tests on 12.7 mm and 15.2 mm diameter seven-wire untensioned prestressing strands embedded in concrete blocks. The pull-out tests were conducted with two different fiber lengths and five different fiber contents for each strand diameter. The steel fibers were observed to improve the pull-out resistance of strands by controlling the crack growth inside concrete blocks. (C) 2011 Elsevier Ltd. All rights reserved.