Experimental investigation of steel fiber dispersed reinforced concrete beams

The article presents the results of research on the deformation characteristics of concrete beams dispersed reinforced with steel fibers. One of the main disadvantages of conventional concrete is that its tensile strength is several times less than that of compressive strength, and the tensile behaviour of concrete in bending elements is not considered. This article takes into account the behaviour of concrete beams in the tensile zone by dispersing reinforcement of concrete beams with steel fibers, and the changes of strains in compressive and tensile concrete and tensile steel reinforcements depending on imposed load are highlighted. Also, by adding steel fibers to the concrete mix with lengths of 10, 20, 30, 40 and 50 mm and 0, 0.5, 1.0, 1.5, 2.0, 2.5 and 3.0% by volume, their optimal amounts were determined by testing cubic and prismatic samples.

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