Experimental investigation shows steel fiber reinforced concrete improves load-deflection curve in long beams, suggesting superior deflection control over traditional concrete.
This study presents the findings from nine laboratory tests on rectangular long beams made of Reinforced Concrete (RC) and Steel Fiber Reinforced Concrete (SFRC). The experimental investigation shows that the long beams with SFRC show different behaviour in terms of load-deflection curve as compared to the RC long/slender beams. This study examines hooked-end steel fibers with two different aspect ratios i.e. 63.63 and 77.78. Three different grades of concrete (M25, M40 and M55) are considered to study as to how the variation in grade of concrete impacts the slenderness of the steel fibre RC long beams. The experimental study however shows that the deflection control of steel fibres with aspect ratio 63.63 is better than the steel fibres with aspect ratio 77.78. Also, it has been observed that the beams with grade of concrete M55 has a lower load carrying capacity as compared to other two grades as it fails due to instability (bending/twisting) at lower values of load. Finite Element (FE) analysis using ATENA confirms the findings from laboratory tests.
No takes yet. Share an insight, caveat, or question.
Kaur et al. (2025) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: