A German team has built a warehouse in Stuttgart with load-bearing concrete walls using a continuous 3D-printing process.
The structure, which the team describe as a “world first”, was created using a truck-mounted concrete pump that is able to spray 26m of carbon-reduced concrete across multiple layers in a single operation.
The technology, which is called Karlos, offers an alternative to gantry printers.
The building was built by Züblin, the German subsidiary of Austrian contractor Strabag, together with Putzmeister, a subsidiary of Chinese equipment maker Sany.
Christoph Kaml, Putzmeister’s chief executive, said: “A high degree of electrification and automation is required along the entire work process. The reduction of manual labour is a decisive factor in dealing with the increasing shortage of skilled workers.”
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