3D-printed textile-reinforced concrete

A paper proposes the technological solution for the use of textile reinforcement with the additive technologies in the construction. This solution involves the preliminary manufacture of reinforcing frames. Those are the textile reinforcing net made of an alkali-resistant basic knitted fiberglass with an integrated layer of wall insulation. The treatment of reinforcing net with liquid glass increases the strength characteristics of the resulting composite – textile reinforced concrete. The technology consists in spreading of the prepared frames on the printed structure as a nozzle of 3D printer moves. The use of reinforcing net allows ones to reduce the manual labour costs for the connection of the external and internal surfaces of the printed wall, makes it possible to embed heat-insulating material into the wall under construction in the printing process. Moreover, the technology reduces the requirements for the concrete mix, since the reinforcing net acts as a formwork and prevents spreading during printing.