TY JOUR TI Fracture toughness of fine-grained concretes modified with mineral additives based on thermally activated clay and carbonate rocks KW crack resistance KW fine-grained concrete KW self-compacting mixtures KW mineral additives KW thermoactivated clay KW limestone KW polycarboxylate plasticizer KW fine sands JO Smart composite in construction AU Nizina, T.A. AU Volodin, V.V. AU Makridin, N.I. AU Tarakanov, O.V. PY 2023 IS 4 PB Yaroslavl State Technical University