PRACTICAL IMPACT OF THE «SOIL SUBGRADE - ASPHALT CONCRETE» ROAD SYSTEM STRUCTURE ON ENHANCING TRAFFIC SAFETY, COST EFFICIENCY, AND ENVIRONMENTAL SUSTAINABILITY DURING OPERATION

Abstract

One of the priority areas is the improvement of methods for compacting the subgrade and pavement coating, using man-made waste from various industries. This allows for the design and strengthening of an operating engineering structure by stabilizing the water-thermal regime of the structure, without restricting movement and eliminating ballast depressions in the roadway, rationally using natural resources, while preserving the landscape of the area. The practical application of the issues being resolved requires the comprehensive and rational use of secondary material and raw materials and waste from various industries. To date, the share of their use is about 3-5 %, instead of the calculated values in the general indicator of 25-30 % in the volume of raw materials. Therefore, during the period of industrial-innovative development, issues of rational and integrated use of waste from various industries, with improving the quality of the underlying layer and road surface, are of great practical importance. The article presents graphs and experimental data from a study of an experimental section of box-type road pavement on the section of the A-1 highway from PC 37-50 to PC 37-65.