Stephanie Chaltil from the Barcelona Institute of Advanced Architecture (Spain) specializes in automation techniques for various aspects of construction. Her latest development focuses on the construction of simple, functional huts made of "biocement" - a modern version of mud and reed huts. The key structural element that holds the biocement together is created by multicopters with pumps.
The basis of such a structure can be simply a geodesic dome or a structure with a frame made of branches-tubes and stretched over fabric. Any suitable material with adhesive properties can be used as biocement. It can be a combination of sand and oil, sawdust and fuel oil, a slurry of clay, even the most common mud. The main thing is to ensure that the substance can be pumped through the tubes so that the multicopter can raise the nozzle to a sufficient height and spray the liquid over the base.
As an experiment, the Chatil team built the first house from a geoframe, 2, 000 jute bags of hay and bio-mud cement, which took them just an hour of work. The building collapsed within a week, but by that time miscalculations became clear and the new house was built more slowly, controlling the thickness of the sprayed layer of mud so that a solid cover was formed. This structure stood all summer, and its copy was presented at the London Design Festival.
The main advantage of the technology is that no scaffolding and sophisticated equipment are required to construct a building. The drone will deliver portions of biocement to any required height, and if you write a program for controlling the thickness of the sprayed mixture layer for it, it will be able to create ideal coatings without human intervention. Extremely cheap, practical technology for the warmer regions of the planet.