Title:
Effect of Steel Fiber Tensile Strength on Mechanical Properties of Steel Fiber Reinforced Concretes
Author(s):
Fuat Koksal, Yusa Sahin, and Murat Sahin
Publication:
Symposium Paper
Volume:
289
Issue:
Appears on pages(s):
1-15
Keywords:
steel fiber tensile strength; high-strength concrete; mechanical properties.
DOI:
10.14359/51684259
Date:
9/14/2012
Abstract:
In this study, influences of steel fiber tensile strength on mechanical properties of steel fiber reinforced concrete (SFRC) were investigated. For this purpose, steel fibers, having the same performance class, with tensile strengths of 1050 MPa (152 ksi) and 2000 MPa (290 ksi) were used in concrete. The other variables of experimental study were water/cement ratio and steel fiber volume fraction. The water/cement ratios of 0.35, 0.45 and 0.55 were used and volume fractions of steel fiber in concrete were 0.33%, 0.67% and 1%. The role of fiber tensile strength on mechanical properties of high-strength concrete was observed. It was seen that the performance of both steel fibers changed depending on the matrix strength. Therefore, it was emphasized that matrix strength and fiber strength must be taken into account as criteria, in addition to other parameters such as volume fraction, aspect ratio etc., in mix design of SFRC.