End-hook steel fiber is a new, high-performance steel fiber variety. The mixing ratio design method of steel fiber road is basically the same as that of ordinary concrete, but the differences are: double-controlled strength standards (compressive strength and flexural tensile strength); steel fiber content is determined according to the flexural and tensile strength required by the design; unit water consumption and sand The rate is related to the fiber content. For each 0.5% volume rate) steel fiber, the unit water consumption increases by 6kg, and the sand rate increases by 2%. Thin steel wires of a range of lengths and diameters added to reinforce mortar or concrete. Commonly used long straight steel fibers with circular cross-sections have a length of 10-60 mm, a diameter of 0.2-0.6 mm, and an aspect ratio of 30-100. In order to increase the interface bonding between fibers and mortar or concrete, various special-shaped steel fibers can be selected, and their cross-sections are rectangular, zigzag, and meniscus; the cross-sectional size changes alternately along the length; corrugated; circular; Enlarged ends or hooked, etc.
End hook steel fibers are used in highway bridges, hydraulic dams, railway sleepers, port and marine engineering, tunnel and mine engineering, pipeline engineering and other construction projects.
End-hook steel fiber is a high-performance steel fiber, which can improve the impact resistance and fatigue resistance of concrete and improve the impermeability of concrete. Because of its high tensile strength, good toughness and low price, it is often used as a Alternative to steel fiber, compared with other shapes of steel fiber, it is widely used in slopes, bridges, tunnels, airports, ports, railway sleepers, etc. The content of steel fiber can be selected as 3080kg/m³ for road construction and 50% for bridge construction. -100kg/m³ steel fiber reinforced concrete mixing process: the construction is carried out according to the conventional construction, no special adjustment is required.
