Behavior of Fiber Reinforced Olivine Sand Concrete

This study investigates the behavior of fiber-reinforced olivine sand concrete (FROSC), focusing on its mechanical properties, workability, and durability. Olivine sand, a naturally occurring mineral with carbon sequestration potential, is used as a fine aggregate replacement, while steel fibers (5% by cement weight) are incorporated to enhance tensile and compressive strengths. The experimental program utilized M30 grade concrete, assessing compressive strength, split tensile strength, water absorption, and Sorptivity. Results indicate that while olivine sand concrete alone achieves slightly lower compressive strength (26.76 MPa) than the target (30 MPa), the addition of steel fibers increases it to 30 MPa, meeting design specifications. The study highlights the eco-friendly potential of olivine sand and steel fibers in sustainable concrete production.