3D printed concrete for homes, business and cities

Heavyweight concrete made with clean cubical crushed stone up to 10 mm, with no dusty screenings. The sand is quarry sand; clay and metal particles are removed by a powerful magnet above the conveyor. For thin-walled products we use only fresh M500 cement, which does not cause efflorescence, plus a plasticiser. Because the layers are compacted by extrusion rather than vibration, the mix contains more cement than ordinary concrete.

Our production is standardised around this height. Almost any structure can be broken down into blocks in multiples of 20 cm with monolithic joints. This height gives precise layer geometry without the "elephant foot" effect and a manageable block weight: 40 kg on average, about 60 kg at most, so two people can lift it.

Every structure includes monolithic joints that carry the dead load, wind and snow, as well as expansion joints, composite reinforcement and coarse aggregate that acts as micro-reinforcement. As a result, the products withstand transport over 1,500+ km and all service loads. The design service life is over 100 years.

Each printed contour is reinforced twice along its height with certified composite rebar from a trusted manufacturer (Arvit). It does not lose its properties over time.

Layer-to-layer adhesion is the key to 3D printing. We control the layer deposition time, concrete workability, air humidity and temperature, and the products are cured in a steam chamber.

No. Most fences are installed on point pier foundations with vertical rebar starters (usually 2 bars of 12 mm diameter). The entire load of a section is transferred to the monolithic joints, so a strip foundation is unnecessary, and a pier foundation cuts the amount of reinforcement and concrete work by about 5 times. Houses, of course, need a strip foundation or an insulated slab foundation.