Abstract
The review of existing methods of processing of solid wastes of ferrous metallurgy is carried out. A method is proposed for processing road-building crushed stone from blast-furnace slag by filling its pores with a mixture of cement with microsilica and impregnation with a water-repellent composition. As such a composition, it is suggested that used motor oil be used. The results of experimental studies of samples of hydrophobized slag crushed stone are reported, and statistical processing of experimental data is performed. A nomogram was constructed that allows estimating possible volumes of processing of blast-furnace slag and spent motor oil in the production of road-building crushed stone for the construction of a road with specified parameters. Construction of a motor road of the third technical category 200 km long and 10 m wide with a base of slag crushed stone processed by the proposed method allows to utilize up to 750 thousand tons of blast furnace slag and up to 3 thousand tons of used motor oil.