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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Prefabrication of Load Bearing Structures in Steel fiber Reinforced Shotcrete
Author(s): H. Cederqvist
Publication: Special Publication
Appears on pages(s): 367-374
Keywords: balconies; concrete products; fiber reinforced concretes; metal fibers; prefabrication; shotcrete; Manufacturing
Abstract:To manufacture load-bearing structures of thin-walled concrete, a new production method called EKEBRO fiber shotcrete was developed. The essential part in the technology is a patented spray gun. Steel wire (0.5 mm), concrete, and compressed air are fed into the spray gun. A cutting wheel cuts the wire into fibers of the required length and shoots these in a stabilized direction on the form or surface together with the concrete. Through this method, a good distribution of steel fibers in the product is achieved, and long fibers can be utilized. Spraying with a variating steel fiber content is also possible. The method is used presently in Sweden for the production of balconies for apartment buildings and, further, for the production of various other products. The technique is also used in traditional shotcreting work, such as repair of deteriorated structures.
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