TY JOUR TI Directions for ensuring the quality of gypsum-lime binders during restoration KW quality control KW gypsum binder KW lime KW cement binder KW flexural strength KW compressive strength KW hardening JO Proceedings of Petersburg Transport University AU Safonova, T.Y. PY 2024 IS 21 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"