TY JOUR TI Factors for increasing the early strength of slag concretes with additives KW sustainable development KW eco-friendly construction KW polycarboxylate superplasticizer KW sodium sulfate KW early strength JO Construction and Architecture AU Smetanin, A.A. AU Nuriev, A.G. AU Gindullin, T.R. PY 2025 IS 13 PB Publishing Center RIOR