The effect of silica fume usage to the flexural strength of concrete reinforced with steel fibres Si̇li̇s dumaninin çeli̇k li̇fli̇ betonun eǧi̇lme dayanimina etki̇si̇


Şimşek O., Erdal M., Sancak E.

Journal of the Faculty of Engineering and Architecture of Gazi University, vol.20, no.2, pp.211-215, 2005 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 20 Issue: 2
  • Publication Date: 2005
  • Journal Name: Journal of the Faculty of Engineering and Architecture of Gazi University
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.211-215
  • Keywords: Concrete, Silica fume, Steel fibre
  • Gazi University Affiliated: Yes

Abstract

In this study, silica fume (SF) was replaced with cement by the amount of 0, 2.5, 5 and 10 % in the steel fibre reinforced concrete. Concrete samples were produced by 0.50 water/cement (w/c) ratio according to C 25 and were compacted by means of table vibrator. Samples having 100×100×500 mm dimensions were produced and flexural strength test was applied to these samples. According to test results, addition of 10 % SF to steel fibre concrete caused an increase in flexural strength by 23.5 % for 28 days; 30.8 % for 90 days; 18.3 % for 120 days with respect to control sample. In the concrete in which only SF added (without steel fibre); maximum value of flexural strength was reached in the 2.5 % silica fume ratio. Decrease in the flexural strength was detected for 5 and 10 % silica fume ratios.