TY JOUR TI HEAT RESISTANCE AND FIRE HAZARD OF POURED EPOXY FOAMS FOR CONSTRUCTION PURPOSES KW flame retardants KW flammability KW apparent density KW oxygen index KW modifiers KW polyepoxy foams KW plasticizers KW strength KW flame spread rate KW heat resistance JO Technique and technology of silicates AU Ushkov, M.V. AU Yevtushenko, Y.M. AU Agafonova, N.Z. AU Ushkov, V.A. AU Samchenko, S.V. PY 2025 IS 32 PB Individual Entrepreneur Svetlana Vasilievna Samchenko