TY JOUR TI FEATURES OF STRUCTURE FORMATION OF CEMENT SYSTEMS IN THE PRESENCE OF SODIUM POLYSILICATES KW phase composition KW cement stone KW sodium polysilicates KW contact area KW porosity JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Ogurcova, Y.N. AU Latypov, V.. AU Strokova, V.V. PY 2016 IS 1 PB Belgorod State Technological University named after V.G. Shukhov