TY JOUR TI CEMENT CONCRETE WITH ULTRAFINE ADDITIVES FOR TRANSPORT CONSTRUCTION KW concrete for road coverings KW ultrafine additive KW salt hydrolysis KW fly ash KW dolomite KW superplasticizer KW compressive strength KW bending strength KW rate of strength gain KW concrete structure JO Technique and technology of silicates AU Urkhanova, L.A. PY 2026 IS 33 PB Individual Entrepreneur Svetlana Vasilievna Samchenko