The use of metallurgy waste in the roads sustainability improving

Abstract

The purpose our scientific work is to develop recycling techniques metallurgical slag (MS) of the Kemerovo regions’ industrial enterprises in the Russian Federation in order to increase the roads sustainability. The research methodology was based on our developed technological schemes of MS recycling, which justified the need for a consistent transformation of their properties through a series of mechanical and physic-chemical effects. Express method of selecting mixtures composition for the bases of pavements from various MS fractions was used for the rapid selection of the densest asphalt mixtures composition. The obtained results indicate that the use of steelmaking slag in the composition of asphalt mixtures determines the possibility of improving their operational properties. This circumstance determines the possibility of using such mixtures for pavements repair, increasing the life of existing roads, as well as the construction of new ones. This means that metallurgical slag can become an important reserve for natural building materials in the process of preparing and laying asphalt mixes on city streets and highways of various classes and categories. Their cost and reserves will make it possible to build pavements resistant to dynamic loads and alternating temperatures with relatively low material costs.