TY JOUR TI CRITERIA FOR EVALUATING THE FIRE-PROOF PROPERTIES OF COMPOSITION BASED ON CHLORINE-CONTAINING BINDING AGENT KW foamed coke KW mass changing KW flame-retardant effectiveness KW density KW porosity KW degree of intumescence JO Problems of risk management in the technosphere AU Dolzhenkov, A.F. AU Lebedeva, V.V. PY 2023 IS 2023 PB Saint-Petersburg University of State Fire Service of Emercom of Russia