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Additive Manufacturing with new Concrete
Now three-dimensional printing is also possible with concrete. The concern G.tecz Engineering, which is specialized on cement bonded high-tech-materials, developed a nano concrete for three-dimensional industrial printer, which waives completely polymer binder that was necessary until now. The dry mixture of the material will be regularly batched in printer, which already exist and handle powder, so it reaches excellent material properties. With this additive print method, 150-micrometer separate coats will be constructed to complex component parts. The size of the concrete elements is only limited by the available space of the printer.
G.tecz's purely cement bonded three-dimensional print concrete is a nano optimized dry-mix, that reaches a compressive strength of 5 N/mm2 according to the pressure sewer system and is therefore harder than many conventional porous concrete, which are known from the building industry. G.tecz is permanent enhancing the concrete to raise the tightness and the strength continuously. The concrete is with approximately 2000 kg/m3 lighter than normal concrete but just as weatherproof and temperature-resistant as normal concrete. Also 1000 degrees aren't a challenge for the material.
The area of application of the material is multifaceted and ranges from product design and architecture to concrete formwork for aluminum casting respectively permanent mold casting. In cooperation with the industry partner Voxeljet AG there were printed casting prototypes for bicycle charging points and decorative elements from the division of architecture. Even printing of statues or decorative elements for refacing old buildings are possible.
Three-dimensional print concrete also offers great possibilities for the aluminum industry. Because of his extreme resistance to heat, can the material be used for printing of casings for aluminum casting respectively permanent mold casting. The material doesn't require any chemical binder, so almost perfect aluminum molds can be generated without any inclusion. The machine finishing of the aluminum can be reduced significant. Furthermore the casings can be used several times and reach substantial economic advantages compared to other methods.
The three-dimensional print concrete can be coordinated individual to printer and print methods. Furthermore also the strength of the material can be adjusted according to the customer's requirements. G.tecz Engineering offers worldwide customized solutions for three-dimensional print concrete and opens a new chapter for concrete for the industry.
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