EXPERIMENTAL INVESTIGATION OF FIBER REINFORCED CONCRETE USING DIFFERENT TYPES OF STEEL FIBERS
Keywords:
Fiber reinforced concrete, steel fibers, aspect ratio, compressive strength, split tensile strength, flexural strengthAbstract
The structural performance of concrete made with commercially available steel fibres has been investigated. Two types of steel fibres, hooked and crimped of aspect ratio 60 were used in the present study. The overall volume fraction of steel fibres was restricted to 1-2% by the volume of concrete. M25 grade of concrete was used to cast the specimens. Reinforced concrete beams were cast with different percentages of steel fibres and the specimens were tested after 7 and 28 days of curing. Tests such as workability of concrete, compressive strength of concrete, flexural strength of concrete and split tensile strength of concrete were conducted. The steel fibres used delays and control the tensile cracking. The combination of steel fibres increases the stiffness, ductility and toughness significantly.
