MECHANICAL PERFORMANCE OF FIBER-REINFORCED SELF-COMPACTING CONCRETE: COMPARATIVE ANALYSIS AND STRUCTURAL IMPLICATIONSPages 123-131
Abstract
The primary focus of this paper's analysis of the mechanical static behavior of concrete reinforced with steel fibers is its classification based on differences in mix design and fiber concentration. To find out the uniaxial compressive and tensile strengths, experimental experiments were run. Different mix patterns and fiber lengths were combined to create a variety of combinations with fiber percentages varying from 1% to 2% by volume. Uniaxial compression testing was used to mechanically characterize the SFRC in order to determine its ultimate compressive strength. Furthermore, ductility and first crack strength indices were evaluated using bending test with four-point consisted of the notched specimens. The evaluation of SFRC's tensile strength was conducted using both analytical modeling and experimental methods. The results of the experiments showed that the SFRC behaved differently depending on the length and fiber content. Direct tensile strength was calculated theoretically using an analytical model from the literature and compared to the experimental findings. The comparison showed a generally good agreement, confirming the results of the investigation.
Keywords: steel fibers, tensile strength, concrete, SFRC, Structural.
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Shrikant M. Harlea, 
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