Economic Advantages and Application Scope of Loose Hooked End Steel Fiber

The surface of the steel-concrete floor and the steel grids are all plain concrete, which is relatively fragile and prone to cracking and falling off. Steel fiber can improve the impact resistance of the concrete floor system, absorb energy, and effectively protect the floor system from being damaged when it is impacted.

Ⅰ. The function of steel fiber in concrete

Steel fiber is a thin steel wire with a certain length and diameter, which is added to enhance the function of concrete. These randomly scattered steel fibers can effectively prevent the expansion of micro-cracks and the formation of macro-cracks in the concrete. Steel fiber significantly improves the tensile, flexural, impact and fatigue resistance of concrete, and makes the concrete have better ductility. At the same time, there are special-shaped anchor ends on both ends of the steel fiber, which can strengthen the bond with concrete. The anchoring end effectively transmits and distributes the stress when the concrete is deformed, so that the cracks are resolved into fine scattered micro cracks. The scope of application of steel fiber: floors, roads, railways, tunnels, water conservancy, power stations, subways, segments, airports, dams, bridges, docks, mines, metallurgy, minerals, environmental protection, industrial plants and civil buildings.

Ⅱ. The scope of application of loose wire hook-end steel fiber

The loose wire hooked end steel fiber is bonded with water-soluble glue into a bundle, which is called cold drawn loose wire hook-end steel fiber. The scope of application of loose hook-end steel fibers: floors, roads, railways, tunnels, water conservancy, power stations, subways, segments, airports, dikes, bridges, wharves, mines, metallurgy, minerals, environmental protection, industrial plants and civil buildings, etc. .

Increased amount of loose wire hook-end steel fiber. Take the steel fiber with a diameter of 0.75mm and a length of 60mm commonly used in floor projects as an example: the content is 4600 per kilogram; calculated by adding 1.5 kilograms of concrete per square meter, the number of steel fibers in each square of concrete is 69,000. If the floor thickness is 200mm, the content of steel fibers per square meter of the floor will reach 13,800. The extremely high distribution density of steel fibers has a great effect on the dispersion of floor cracks and can fully control the width of floor cracks. This is beyond the reach of steel bars.

Ⅲ. What are the economic advantages of using loose wire hook-end steel fiber for concrete?

1. The steel fiber at the hook end can save the amount of concrete under the same strength.

2. The hook-end steel fiber produced by concrete fiber manufacturers can replace or partly replace the steel bar.

3. The hook-end steel fiber can shorten the construction period, and is especially suitable for larger projects that require continuous and rapid concrete irrigation.

4. The same mixing and construction of hook-end steel fiber and ordinary concrete without additional equipment.

5. Hook-end steel fiber products have a longer life, high comprehensive cost performance, and significant social benefits.