Possibilities of three-dimensional printing additive technologies application in construction

摘要

The article presents the results of a study on the using additive technologies in construction possibilities. A historical review of the development of automation of construction processes and 3D printing has been carried out. The main methods of using 3D printing in construction production, their advantages and disadvantages are considered. Two fundamentally different methods of manufacturing building structures using 3D printing are described: inkjet binder application and multilayer 3D extrusion printing. The main types of construction 3D printers are presented: portal 3D printers, 3D printers with a delta drive, crane-type printers and printers made on the principle of a “robotic arm”. The main properties and features of building materials used for 3D printing. The viscosity, the possibility of pumping and the grain size of the aggregate were determined as the basic properties of the concrete mixture for 3D printing. Materials and principles of reinforcement of structures obtained by three-dimensional printing are also considered.