This study investigates the mechanical performance of fiber-reinforced concrete incorporating crimped steel fibers and Granulated Blast Furnace Slag (GBFS) manufactured sand (M-sand) as partial replacements for conventional materials. Conventional concrete is strong in compression but weak in tension, and it typically uses natural river sand as fine aggregate. However, excessive sand mining has created significant environmental concerns, necessitating sustainable alternatives. In this experimental investigation, natural river sand is replaced with GBFS M-sand, a homogeneous fine aggregate produced from gravel crushing processes. Additionally, crimped steel fibers are incorporated to enhance the compressive and tensile strength of concrete. The study further explores the utilization of industrial waste materials such as copper slag, pond ash, red mud, and shredded steel as partial replacements in concrete production. The primary objective is to identify suitable alternative materials that improve mechanical properties while reducing cement consumption and overall construction costs. The research also aims to evaluate the strength characteristics of modified concrete in comparison with conventional concrete. The use of these waste materials is expected to enhance workability, improve strength performance, and mitigate environmental issues associated with sand mining and industrial waste disposal.
Concrete, fine aggregate, Red Mud, Strength parameter, sustainable construction, waste material.
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