Definition of the Heat Resistance of Three-layer Ferroconcrete Panel Gregory P. Vasilyev, Vitaly A. Leskov, Victor F. Gornov, Vladimir A. Lichman, Marina V. Kolesova and Alexander N. Dmitriev MATEC Web of Conferences, 40 (2016) 05004 Published online: 29 January 2016 DOI: 10.1051/matecconf/20164005004