TY JOUR TI OPERATIONAL PROPERTIES OF POLYMER COMPOSITE SHEET PILING WITH POLYURETHANE MATRIX OF THE CSHP-150UM BRAND KW polymer composite sheet pile; polyurethane matrix; pultrusion; temperature; aggressive environment; ultraviolet radiation; strength; creep JO Technique and technology of silicates AU Kornev, O.A. AU Mikhaldykin, E.S. AU Zhidkov, Y.A. AU Silantyev, A.S. AU Ushkov, V.A. PY 2025 IS 32 PB Individual Entrepreneur Svetlana Vasilievna Samchenko