%0 Journal Article %T HYDROPHOBIC PROPERTIES OF CEMENT STONE WITH WASTE ADDITIVES OF LECITHIN EXTRACTION %A Kharlamov, V.A. %A Lopanov, A.N. %A Dement'ev, K.V. %A Sysoev, P.I. %K Cement, additives, lecithin, waste, cement stone, concrete, water absorption, contact angle, surface free energy %J Bulletin of Belgorod State Technological University named after. V. G. Shukhov %D 2025 %N 10 %P 8 %I Belgorod State Technological University named after V.G. Shukhov