What is the Purpose of Adding Steel Fibers to Concrete?

1. The purpose of adding steel fibers to concrete

Steel fiber reinforced concrete is a new type of multiphase composite material formed by mixing short steel fibers in the disorderly distribution in ordinary concrete. It can significantly improve the tensile, flexural, impact, and fatigue resistance properties of concrete, and has good ductility. It is widely used in the construction of modern water conservancy and hydropower projects. The addition of steel fibers for concrete to steel fiber reinforced concrete can effectively hinder the expansion of micro-cracks and the formation of macro-cracks in the concrete, and significantly improve the tensile, flexural, impact, and fatigue resistance of concrete. The addition of a waterproofing agent to the steel fiber reinforced concrete has the advantages of moisture resistance, crack resistance, wear resistance, etc., and plays a good role in waterproofing and moistureproofing of basements and civil air defense projects.

The early slump loss of concrete is relatively large, with a loss of 32% in 30 minutes and a loss of 42% in 2 hours. The actual workability of steel fiber reinforced concrete is better than that of ordinary concrete with the same slump. Steel fiber reinforced concrete has good material properties. Compared with ordinary concrete, its compressive strength is increased by 2 to 20%; flexural tensile strength is increased by 20 to 50%; splitting tensile strength is increased by 20 to 40%; wear resistance is increased by 40% %, and its physical and mechanical properties can fully meet the technical indicators of urban road engineering and inspection manhole covers and other supporting components. The rough and clean surface of steel fiber can be firmly combined with the cement paste in concrete, which is the fundamental reason why steel fiber improves various properties of concrete. High-strength steel fiber reinforced concrete has been widely used in railway sleeper prefabrication, highway expansion joints, cement concrete pavement, and other prefabrication, cast-in-place, production construction, etc.

2. The benefits of steel fiber reinforced concrete

The addition of steel fibers to steel fiber reinforced concrete can effectively hinder the expansion of micro-cracks and the formation of macro-cracks in the concrete, and significantly improve the tensile, flexural, impact, and fatigue resistance of concrete. The addition of a waterproofing agent to steel fiber reinforced concrete has the advantages of moisture resistance, crack resistance and wear resistance, and plays a good role in waterproofing and moistureproofing of basements and civil air defense projects. It can also be used in underground water pump waterproofing, etc. Steel fiber reinforced concrete is a new type of multiphase composite material formed by mixing short steel fibers in disorderly distribution into ordinary concrete, which significantly improves the tensile, flexural, impact, and fatigue resistance properties of concrete, and has good ductility.

Nowadays, adding steel fibers into concrete is a method to reinforce concrete. As a professional concrete fiber supplier of steel fiber wire, SDS has deep research in steel fiber reinforced concrete and can produce high-quality steel fibers. If you are interested in steel fiber reinforced concrete and want to buy steel fibers for concrete, welcome to contact us!