TY JOUR TI ACID-BASE SURFACE OF THE QUARTZ SAND IN THE TECHNOLOGY OF ELECTRICALLY CONDUCTIVE MIXES KW mechanical activation KW quartz sand KW the surface model of active sites KW calorimetry KW heat of reaction KW the strength of the products JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Lopanov, A.. AU Fanina, E.A. AU Guzeeva, O.. PY 2016 IS 1 PB Belgorod State Technological University named after V.G. Shukhov