%0 Journal Article %T ESTIMATION OF THE EFFICIENCY OF MECHANICAL ACTIVATION OF SILICA-CONTAINING ROCKS %A Shamanina, A.V. %A Ayzenshtadt, A.M. %A Kononova, V.M. %A Danilov, V.E. %K mechanical activation, surface tension, surface activity, free surface energy, specific surface area, silica-containing raw material, quartz sand %J Bulletin of Belgorod State Technological University named after. V. G. Shukhov %D 2021 %N 6 %P 8 %I Belgorod State Technological University named after V.G. Shukhov