TY JOUR TI HARDENING AND PROPERTIES OF A MIXED BINDER WITH SODIUM CITRATE AND POLYCARBOXYLATE ETHER PLASTICIZER KW cement paste KW rheological properties KW technological properties KW sodium citrate KW polycarboxylate ether superplasticizer KW mixed binder JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Soloviev, V.G. AU Shvecova, V.A. PY 2025 IS 10 PB Belgorod State Technological University named after V.G. Shukhov