PHYSICAL AND MECHANICAL PROPERTIES OF ASH-AND-SLAG MIXTURES FOR THEIR USE IN STRUCTURAL FOUNDATIONS СтатьяSlobodchikova Nadezhda A., Klyuev Sergey Vasilievich, Klyuev A.V., Fedosov S.V., Ismailov Aleksei MarlenovichSoil Mechanics and Foundation Engineering. Том 62. 2025. С. 243-248