TY JOUR TI IMPROVING THE EFFICIENCY OF CONCRETE PROPERTIES USING MODIFIER ADMIXTURES KW cement KW concrete mix KW strength KW modifier admixtures KW hydration KW dissolution KW characteristics JO Technique and technology of silicates AU Urbanov, A.V. AU Potapova, E.N. PY 2025 IS 32 PB Individual Entrepreneur Svetlana Vasilievna Samchenko