Abstract
The shortage of high-quality stone materials for road construction requires the search for alternative materials, the use of which will ensure the proper quality of road pavements. Metallurgical slags are a valuable raw material for the construction industry in general and for road construction in particular due to its properties. However, they are characterized by heterogeneity of composition in different batches and, as a result, physical and mechanical characteristics that change over time. The use of various methods for stabilizing that kind of technogenic raw materials makes it possible to obtain stone raw materials with specified properties. The paper considers the effect of crystal-chemical stabilization of slag in the process of draining on the complex of standardized indicators of the final material – slag rubble. Stabilization of furnace slag during draining made it possible to improve the following standardized indicators: compressive strength grades from 800 to 1200, abrasion grades from IV to II, structural stability of slag against decay from StS2 to StS1, frost resistance to F50. The physical and mechanical properties of the resulting stone material make it possible to use it for the construction of base layers and as part of composite materials for the construction of coatings in road pavement structures.
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