TY JOUR TI THE COEFFICIENT OF AIR PERMEABILITY AS THE PARAMETER ASSESSMENT STRUCTURES OF FOAM GLASS KW foam glass KW porosity KW gas-forming agent KW the coefficient of air permeability KW foaming JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Vaysera, S.S. PY 2016 IS 1 PB Belgorod State Technological University named after V.G. Shukhov