TY JOUR TI Modification of cement binder by the dispersed additive of secondary polyamide KW cement binder KW secondary polyamide KW cement-polymer material KW superplasticizer JO Technique and technology of silicates AU Musafirova, G.Y. AU Grushevskaya, E.N. AU Musafirov, E.V. AU Popova, M.N. PY 2015 IS 22 PB Individual Entrepreneur Svetlana Vasilievna Samchenko