Pilot production line for granulated asphalt concrete mix production

The paper presents the results of calculation of a pilot production line for granulated asphalt concrete mixture with inclusion of phosphogypsum and secondary polyethylene terephthalate. The authors propose a method of mixing asphalt mixture components by pelletising. The authors selected the production units of the pilot line, gave recommendations on the minimum permissible technical and operational characteristics of the equipment. The authors have developed a brief technological regulation of production, energy and resource intensity of production was determined. In addition, it allowed them to calculate the need for human resources, means of mechanisation and determine the cost characteristics of the target material. The presented data are quite complete for drawing up the terms of reference for designing a pilot production line and determining its cost parameters. This makes it possible to comprehensively characterise the developed road material both from the point of view of the level of technical and operational indicators and from the economic point of view. The paper expands the understanding of the methods of production of asphalt concrete mixtures and the raw material base of road construction.