An alternative to conventional steel reinforcement?

Steel-fiber-reinforced concrete for lining segments

To an increasing extent, specifiers envisage the use of steel fibers instead of conventional steel reinforcement to resist tensile forces in lining segments of tunnels or large sewers. Particularly on an international scale, this move is triggered by the necessity to build with steel-reinforced concrete under extreme conditions, for instance with respect to groundwater chloride content, and to enable service lives of more than 100 years. Whereas splitting tensile forces must be absorbed in the seal area during driving, the compressive strength of concrete would often be sufficient in installed...

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Issue 05/2024

Controlled fiber orientation in steel-fiber-reinforced precast elements

Fiber orientation has a significant effect on the load-bearing capacity of steel-fiber-reinforced concrete (SFRC) components. To optimize this orientation, an extrusion-based concreting method...

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Issue 06/2022

Fibers replace reinforcement – Rapid construction with fiber-reinforced semi-precast elements

Installing conventional reinforcement is expensive and time-consuming. This process step is eliminated by using steel fiber reinforced concrete. However, in general, fibers are not used as the only...

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Issue 02/2018 Current investigations of high-tensile concrete

Carbon-fiber reinforcement combined with the orientation effect of 3D pressure

Attempts have long been made to replace conventional steel reinforcement with suitable alternative materials. In this context, cost-effectiveness has been given special priority. At Augsburg...

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Issue 06/2022

Influence of fiber orientation on the mechanical properties of ultra-high performance fiber-reinforced concrete

With steel fiber reinforced concrete, not only the fiber volume fraction, but also the fiber orientation has a decisive influence on the mechanical properties. This is especially true for the behavior...

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Issue 02/2017 New possible applications

High flexural tensile strength concrete

Nowadays, fiber-reinforced concrete is often used to increase the flexural tensile strength of the material. This approach enables a reduction in the ratio of conventional reinforcement or its...

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