Steel fibres are small, discrete reinforcing elements that are made of steel and are used to improve the mechanical properties of concrete. They are typically added to concrete in small quantities, ranging from 0.5 to 2% by volume, and are distributed uniformly throughout the mix. The addition of steel fibres to concrete can significantly enhance its toughness, ductility, and resistance to cracking and fracture. Steel fibres are available in a variety of shapes, sizes, and configurations, including hooked, crimped, straight, and wavy. They can be made from different types of steel, such as carbon steel, stainless steel, and high-strength steel, depending on the specific application and performance requirements. Steel fibres are commonly used in industrial flooring, shotcrete, precast concrete, tunnel linings, and other applications where high strength and durability are essential. The use of steel fibres in concrete offers several advantages over traditional reinforcement methods, such as steel bars or mesh. Steel fibres are easier to handle and place, require less labor, and can be used to reinforce thin sections of concrete where traditional reinforcement methods are not feasible. Additionally, steel fibres can improve the impact resistance and fatigue performance of concrete, making it more suitable for dynamic loading conditions. Despite their many benefits, the use of steel fibres in concrete also presents some challenges. The addition of steel fibres can increase the viscosity of the concrete mix, making it more difficult to pump and place. Additionally, the presence of steel fibres can cause issues with finishing and surface appearance, requiring additional care and attention during the placement and finishing process. In conclusion, steel fibres are a highly effective and versatile reinforcement material that can significantly improve the mechanical properties of concrete. Their use offers several advantages over traditional reinforcement methods, but also presents some challenges that must be carefully considered and addressed.
reinforcement, toughness, ductility, cracking, durability
CITATION : "Richard Gonzalez. 'Steel Fibres.' Design+Encyclopedia. https://design-encyclopedia.com/?E=352041 (Accessed on July 04, 2025)"
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