In 2016, the Apis Cor company in cooperation with PIK proceeded to print the building using a mobile 3D printer. Construction took place at the Apis Cor company’s test facility in the town of Stupino, on the territory of the Stupino aerated concrete factory. Printing of self-bearing walls, partitions and building envelope were done in less than a day: pure machine time of printing amounted to 24 hours. After completing the wall structures, the printer was removed from the building with a crane-manipulator.
The area of the printed building is 38 m². Design of the single-story residential house is rather unusual. This project was selected specifically, as one of the main purposes of this construction is to demonstrate the flexibility of equipment and diversity of available forms. The house can be of any shape, including the familiar square shape, because the additive technology has no restrictions on design of new buildings, except for the laws of physics. It means it’s time to talk about the new fantastic potential of architectural solutions.
The house was erected in the coldest time of the year. Winter has added complexity to the project participants, as the use of concrete mixture, that is used as the printing «ink», is only possible at temperatures above 5° C. Although, the equipment itself is able to operate in temperatures down to minus 35° C. The problem was solved by setting up a tent which provided the required temperature. Soon, using new materials, such as geopolymer, you will be able to print a house at any time of the year.
Construction is based on Apis Cor 3D printing technology — a unique equipment, which has no analogues in the world today: mobile construction 3D printer and automatic mix and supply unit. A distinctive feature of the printer is its design, which is reminiscent of the tower crane, allowing the printer to execute the printing process of constructing the building both inside and outside.
The printer has a small size, easily transportable and does not require long preparation before the commencement of the construction works because it has a built-in automatic horizon alignment and stabilization system. The printing process is automated as much as possible and almost eliminates the risk of human error.
Insulation system in the printed house was done using innovative materials of TechnoNICOL company The roof of the house in Stupino, in accordance with the architectural project, is flat. The solution proposed by the TechnoNICOL company can effectively withstand high snow loads and durability requirements. Its cost is comparable with steep roofs, which are common for our country. The roofing carpet is made of LOGICROOF polymer membranes. The material has high performance and technological installation. Membrane patches are welded together with special equipment using hot air.
"On the inside the printed house is no different from an ordinary one — cozy and comfortable"
House interior includes a hall, a bathroom, a living room and a compact functional kitchen with the most modern appliances from Samsung company. The construction cost of the printed house amounted to $10134, which is approximately $275 per square meter, taking in account that partners have provided the highest quality materials, and building itself has an extraordinary shape.