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As a Steel Fibers in Concrete Manufacturer, share with you.
Analysis of the force mechanism of steel fiber concrete
For steel fiber concrete, if the binding force is too large relative to the tensile strength of the steel fiber, the steel fiber will be broken during the stress process; if the binding force is too small relative to the tensile strength of the steel fiber, it will cause The steel fiber is pulled out during the stress process.
The larger the ratio of steel fiber length to diameter, the more steel fiber per unit weight, and the more steel fiber action points in the same volume of concrete under the same content, the higher the load-bearing capacity of steel fiber concrete components. Within a certain range, the higher the amount of steel fiber, the stronger the load-bearing capacity of steel fiber concrete components.
Glued Hooked End Steel Fiber
The mechanism of steel fiber controlling cracks
The steel fiber itself has a certain tensile strength to ensure that the steel fiber will not be broken when working with the concrete; through the binding force between the steel fiber and the concrete, the steel fiber can effectively transmit and distribute the stress, which can effectively Control the development of cracks in concrete.
Enhance the impact resistance of the structure
The steel fibers are evenly distributed in the concrete, so that the concrete structure is evenly reinforced in many aspects, so that the steel fibers can absorb a large amount of impact energy when the concrete structure is impacted, reduce stress concentration, and effectively control the generation of cracks in the concrete. development of.
Improve wear resistance and fatigue strength
After adding steel fiber, the abrasion resistance and fatigue strength of the concrete structure will be greatly improved, which can reduce the surface damage caused by impact. It is especially suitable for engineering parts with severe erosion damage and building structures with high fatigue strength requirements.
Improve the durability of concrete
For reinforced concrete, concrete will spall due to the rust and expansion of steel bars. However, the cross section of steel fiber in steel fiber concrete is very small, and the area and volume are relatively large. A thick alkaline film of calcium hydroxide will be formed around the steel fiber. This film has a good protective effect on the steel fiber; Fiber can reduce concrete cracks and prevent the intrusion of corrosive substances, thereby reducing or even avoiding the occurrence of such damage, greatly improving the durability of concrete, prolonging its service life, and reducing subsequent maintenance costs.
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