TY JOUR TI TESTING OF BUILDING DRY MIXES KW dry building mixes KW masonry work KW thermal conductivity KW building mortars JO Modern Technologies and Scientific and Technological Progress AU Savenkov, A.I. AU Patrushev, D.V. PY 2026 IS 2026 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»