Characteristics and advantages of UHPC Steel Fiber
UHPC mixed with Steel Fiberis a new kind of multiphase composite material, which is composed of ordinary concrete and short Steel Fiber. These steel fibers can effectively hinder the expansion of micro-cracks and the formation of macro-cracks in concrete, and significantly improve the tensile, bending, impact, and fatigue properties of concrete, as good ductility.
The main function of the short Fiber in the UHPC Steel Fiberis to prevent the propagation of micro-cracks in the concrete and the occurrence and development of macro-cracks. In the early stage of loading (tension, bending), cement-based materials and fibers bear external force together. When concrete cracks, fiber across the cracks becomes the main bearing force. Therefore, UHPC Steel Fiberhas a series of superior physical and mechanical properties compared with ordinary concrete.
1. Economic superiority.
The increase in the strength-to-weight ratio is an important symbol of the superior economy of UHPC Steel Fiber.
2. It has high tensile, bending, shear, and torsional strength.
The tensile strength, flexural strength, and shear strength increased by 25% ~ 50%, 40% ~ 80%, and 50% ~ 100% respectively when steel fiber was added to concrete.
3. Excellent impact resistance.
The property of a material that resists shock or vibration and is subjected to loading is called impact toughness. The impact compressive toughness of a material can be increased by 2-7 times under normal fiber content, and impact bending and tensile toughness can be increased several times to dozens of times.
4. Significantly contractionary.
The shrinkage of UHPC Steel Fiberis 7% ~ 9% lower than that of normal concrete.
5. It has remarkable anti-fatigue properties.
The flexural and compressive fatigue properties of UHPC Steel Fiberare better than those of ordinary concrete.
6. Remarkable durability.
UHPC Steel Fiberhas good crack resistance and integrity, except that its impermeability has no obvious change compared with ordinary concrete, therefore, the freeze-thaw resistance, heat resistance, abrasion resistance, cavitation resistance, and corrosion resistance are significantly improved.
The above is the characteristics and advantages of UHPC Steel Fiber, hope to better help you understand our products, if you have other questions or needs, you can contact us directly.