Title: Tensile Strength of Steel Fiber Reinforced Concrete: Correlation With Some Measures of Fiber Spacing

Author(s): Parviz Soroushian and Cha-Don Lee

Publication: Materials Journal

Volume: 87

Issue: 6

Appears on pages(s): 542-546

Keywords: fiber reinforced concretes; measurement; metal fibers; models; mortars (material); tensile strength; tension; tests; Materials Research

DOI: 10.14359/2494

Date: 11/1/1990

Abstract:
A comparative study was performed on the degree of correlation between the measured direct tensile strength of steel fiber reinforced concrete and expressions relating the spacing of fibers to tensile strength in concrete. These included two conventional expressions for average fiber spacing and an expression for the number of fibers per unit cross-sectional area. The results indicated that the tensile strength test results correlate better with the expressions that consider number of fibers per unit area as compared with the conventional fiber spacing expressions. When used at similar numbers per unit cross-sectional area in concrete, duoform and straight fibers also produced statistically comparable improvements in direct tensile strength of concrete.