TY JOUR TI USING SODIUM HYDROXIDE FOR OBTAINING ALKALI SILICATES KW sodium hydroxide KW activation of silicon-containing component KW silicate block KW alkaline silicates JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Lavrov, R.V. AU Klikin, E.G. AU Novikov, L.B. PY 2019 IS 4 PB Belgorod State Technological University named after V.G. Shukhov