Abstract
The method of full or partial automation of masonry of stone structures has great prospects. A big hindrance to the development of 3D technology in construction is the need to adapt the concrete mixture to the narrow aperture of the nozzle of the extrusion die. In additive manufacturing, known as 3D printing, properties such as the static and dynamic yield stresses of jointing materials play a main role. The purpose of this article is to define the most optimal concrete mix solution for a printing extruder, which will have the highest rheological indices. In the article was considered the scheme of solution feeding system. The optimum percentage relationship of raw materials included in the watercement solution for further feeding through the nozzle was calculated. The static yield strength of the concrete mixture exceeds 5000 Pa, and the dynamic - above 250 Pa.
Highlights
Today a large number of studies are carried out to study the automation of the construction process, including the introduction of a 3D construction printer
Despite the rapid pace of increasing labor productivity, the construction industry lags behind other areas in which automation technologies have been introduced
The disadvantages mentioned above are applicable to mass construction at construction sites
Summary
Today a large number of studies are carried out to study the automation of the construction process, including the introduction of a 3D construction printer. Despite the rapid pace of increasing labor productivity, the construction industry lags behind other areas in which automation technologies have been introduced. Other industrial spheres, such as the automotive industry, have fully undergone changes in the values of improving product quality and productivity with the advent of new 3D technologies [1]. At the present moment, printing of structural components takes place in spacious and equipped rooms, and after that the element is transported to the construction site. The issue of mobilizing a construction 3D printer remains relevant to this day
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