TY JOUR TI INFLUENCE OF MINERAL FILLERS ON THE LIQUISHING OF CEMENT SYSTEMS WITH THE HELP OF SURFACTANTS KW superplasticizer KW filler KW cone flow KW quartz powder KW calcium carbonate KW electrosurface properties JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Tolypina, N.M. AU Tolypin, D.. PY 2022 IS 7 PB Belgorod State Technological University named after V.G. Shukhov