TY JOUR TI COMPARISON OF REINFORCED CONCRETE AND FOAM CONCRETE SLABS AT THE ESTIMATED COST KW foam concrete KW lightweight structures KW building floors JO Modern Technologies and Scientific and Technological Progress AU Savenkov, A.I. AU Ploskonosova, A.O. AU Kolomiets, V.S. PY 2022 IS 2022 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»