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Concrete is one of the most extensively utilized construction materials today. Its popularity stems from its ready availability, ease of moulding into various shapes, cost-effectiveness, and high compressive strength. Despite these advantages, concrete is known for its low tensile strength and poor performance in harsh conditions, which is a significant drawback for any construction material. To mitigate these weaknesses, concrete is typically combined with steel reinforcement. Steel fibers are added to concrete to improve the structural properties, particularly tensile and flexural strength. Plain, straight and round fibers were found to develop very weak bond and hence low flexural strength. In this research, steel binding wires were used as steel fibers which are locally available at very cheap cost. Steel fibers were added in different percentage i.e. 0%, 0.5 %, 1%, 1.5%, 2%, 2.5% and 3%. The primary focus of the research was to calculate compressive and tensile strengths of various samples and determine the maximum amount of Steel fibers that can provide the maximum strength. To achieve this, cubes and cylinders were cast and tested using a Universal Testing Machine for their compressive and tensile strengths. The findings indicated a slight increase in compressive strength, while the addition of steel fibers resulted in a more significant increase in tensile strength.
Lage et al. (Sun,) studied this question.