The main role of loose steel fibers includes improving the impact resistance, fatigue resistance, and impermeability of concrete, and enhancing its toughness.Loose steel fibers are often used as a substitute for row steel fibers due to their high tensile strength and good toughness, and are widely used in bridges, tunnels, airports, ports, railroad sleepers and other projects.
Specific role and application scenarios
Improving the impact resistance and fatigue resistance of concrete: Loose steel fibers can effectively hinder the expansion of microcracks inside concrete, and significantly improve the impact resistance and fatigue resistance of concrete.
Enhancing the impermeability of concrete: By hindering the expansion of microcracks inside concrete, loose steel fibers can improve the impermeability of concrete and reduce water penetration.
Improving the toughness of concrete: Due to its high tensile strength and good toughness, loose steel fibers can significantly enhance the toughness of concrete, making it less likely to break when subjected to external forces.
Physical properties
The physical properties of loose steel fiber include:
Raw material: iron wire
Fiber shape: end hook type
Cross section: round
Diameter: 0.4~1.0 mm
Length: 25~60 mm
Tensile strength: 1000~2000 MPa.