TY JOUR TI THE DETERMINATION OF OPTIMAL SPEEDS OF THE MIXING DRUMS OF THE GRAVITATIONAL MIXER KW gravity concrete mixer KW intensification KW productivity KW speed of drum movement KW given the costs JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Telichenko, V.I. AU Kaytukov, B.A. AU Skel, V.I. PY 2017 IS 2 PB Belgorod State Technological University named after V.G. Shukhov