Replacement of Reinforcement in Slabs using Steel Fibers

Replacement of reinforcement in slabs using steel fibers has major advantages in structural element. Generally concrete will fail in compression, tension and flexures. Adding of steel fiber in concrete will increase the compression, tension and flexure strength.

The research focuses on experimental investigation on the structural behavior of SFRC (Steel fiber reinforcement concrete) and replacement of reinforcement in slabs using steel fibers. In this study, the hooked end steel fibers with aspect ratio (l/d) of 50 were used. The volume of steel fibers of 1.5% was added by volume of M25 concrete. After 7, 14 and 28 days of curing compressive, split tensile and flexural strength were determined. It was found that inclusion of steel fibers affect the compressive, split tensile and flexural strength of concrete. Four different types of volume of steel fibers were added in minimum reinforcement slabs according to plastic hinge length. This plastic hinge length can be determined by according to Mattock and priestly, plastic hinge length expression. The results are compared experimentally.