Comprehensive review examines how waste fibres enhance concrete performance, suggesting significant cost and environmental benefits.
This comprehensive review examines how industrial waste materials—specifically waste metallic fibres (WMF) and waste polypropylene fibres (WPF)—can be converted into high-performance concrete reinforcement. Waste fibres improve concrete behaviour by arresting crack propagation through pinching forces at crack tips, transforming brittle failure into a ductile, energy-absorbing response. Short fibres provide superior compressive strength; long fibres enhance flexural performance and post-cracking ductility; hybrid (multimodal) systems combining both yield optimal results. Waste polypropylene fibre-reinforced composites demonstrate post-cracking behaviour and load-carrying capacity that, in many cases, exceed waste metallic fibre performance despite lower density. Waste fibre-reinforced concrete (WFRC) reduces material costs by 20–40%, addresses waste management challenges, and delivers enhanced structural performance—transforming environmental liabilities into competitive advantages.
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Hiral D. Tailor (2024) studied this question.
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