DRY CONSTRUCTION MIXTURES BASED ON PHOSPHOGYPSUM MODIFIED FOR MOTOR ROADS

Abstract

The relevance of the disposal of phosphogypsum ‒ an output of the chemical industry ‒ through the route of their processing in dry wastewater is shown. The disposal of technogenic waste creates a unique opportunity for such important aspects as a significant reduction in financial investments in the industrial activity of enterprises. Implementation of the primary activities of enterprises is of great importance. On the basis of existing enterprises, subsidiaries with individual tasks are being developed, which are evolving from the previous ones, which means they are seeing the development of new, promising, "lighter" ones technology. The use of man-made waste will provide not only financial savings, but also reduces costs for housekeeping and housekeeping. An important positive aspect is the change in environmental impact on the atmosphere and water basin of the planet. Therefore, the massive recycling of industrial waste is a key problem at the current stage of activity of industrial companies. The variety of products made from technogenic phosphogypsum is economically viable. The effectiveness of utilization of phosphogypsum as a high-acidity man-made product that is created in the process of production of superphosphate minerals has been shown. During the process of heat treatment and modification, dihydrous phosphogypsum is processed in a modified mixture; the sequence of technological processes is broken down. A description of the processes has been carried out and a low-energy technological process has been selected, which will ensure faster energy consumption and resource savings. The stagnation of dry waste products has also been implemented. It is shown that of dry building mixtures is a scientific product of high-tech factory processes, which allows increasing the intensity and speed of road work while reducing the economical warehouse process. The results of experimental research on the curing of modified phosphogypsum in milk berry for the preparation of dry wake-up bags for the basics of road clothing are presented.