TY CONF TI NEW TECHNOLOGIES IN THE CONSTRUCTION OF SUBSTRATE FOR A TIMBER ROAD KW subgrade KW road surface KW geotextile materials KW polymers KW soil compaction KW soil additives JO CIRCULAR ECONOMY FOR THE PURPOSE OF SUSTAINABLE DEVELOPMENT OF INDUSTRIES AND TERRITORIES AU Goptarev, S.M. AU Piriazev, K.A. PY 2024 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov