BEHAVIOR OF HIGH STRENGTH FIBER REINFORCED CONCRETE UNDER SHEAR

This paper assesses the effectiveness of steel fibers used along with the shear reinforcement in the formation of the high grade fiber reinforced concrete. Shear strength of concrete is obtained from direct shear test using push off specimens. Sh ear stress (strength) is calculated as a ratio of load to the area of shear plane. Tests were carried out on the “Push-Off” (double L) type specimens in triplicates to determine the Shear strength. The effects of these fibers with different volume of fibers on workability, density, and on shear strengths of M60 grade concrete are studied. New expressions for shear strengths are proposed.