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Carbon Fibre Grids Replace Steel as an Innovative Concrete Reinforcement

  • Tuesday, 27th August 2013
  • Reading time: about 2 minutes

The three-dimensional carbon-fibre reinforcement, which is newly developed by SGL and V. FRAAS Solutions in Textile have been installed on a new factory building for Alphabeton in Büron, Switzerland.

Using these three-dimensional carbon fibre grids as reinforcement, it was possible to produce concretefaçadepanels that were only 26mm thick, whereas a steel-reinforced façade panel of similar size has a minimum thickness of 100mm.

Alphabeton are specialists in concrete products manufactured from high-performance and ultra-high-performance concrete (UHPC), and make full use of innovative technologies.

Hans-Peter Felder, who is responsible for research & development at Alphabeton, said, “We were looking for a solution that would enable us to produce thin concrete facade panels in large dimensions. The new 3D carbon fibre grids impressed us with their lightweight and corrosion resistance and were easy and convenient to process”.

Peter Weber, Vice President Sales & Marketing, Business Unit Carbon Fibres and Composite Materials of SGL, said, “In this application, we particularly exploit the corrosion resistance of our carbon fibers. Thanks to this advantageous property, we can dispense with the thick concrete covering obligatory with steel-reinforced concrete and produce thin concrete elements”.

V. FRAAS Solutions in Textile has developed a production plant in which the new 3D textile reinforcement based on SIGRAFIL C carbon fibres from SGL can be manufactured in large dimensions for the first time.

These structural reinforcing materials based on carbon fibres are also being used in the repair and renovation sector. As a result of the special properties of carbon fibres, such as high strength and stiffness combined with light weight, bridges and buildings can be permanently renovated.

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