TY JOUR TI INFLUENCE OF MODIFYING AGENT WITH HYDROPHOBIZATION EFFECT ON INCREASE OF OPERATIONAL CHARACTERISTICS OF VIBROPRESSED PRODUCTS KW modifying agents with hydrophobization effect KW vibropressed products KW concrete walkway slabs KW operational characteristics JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Suleymanova, L.A. AU Malyukova, M.V. AU Slepuhin, A.S. AU Krushel'nickaya, E.A. AU Tolstoy, A.D. PY 2019 IS 4 PB Belgorod State Technological University named after V.G. Shukhov