Castle made by concrete 3D printer

Andrey Rudenko- Breitbart article

A local Shorewood, Minnesota architect/engineering, Andrey Rudenko, has developed a process of 3D printing with concrete.  This 7 foot high castle took 3 months to build.  According to the Mpls Star Tribune, he had originally planned to construct it in less then a week but had issues with weather and equipment. 

Optimizing the equipment for high viscosity and low flow has been a challenge but he has worked through the difficulties.  He is planning on constructing a real house using this technique.  He envisions that this process would reduce the time and cost associated with home construction.  Using metal reinforced concrete with foam insulation would work well for energy efficiency as well as sound attenuation.  He is looking to construct his home in a warmer climate in a state that allows this technique in their building codes.

Chinese researchers have also been experimenting with a similar process. 

3D printer Castle - Minnesota -2min.

China 3D printer for houses in less than a day - 12 min.