Fine porosity-cellular glass obtained by microwaveassisted heat treatment using the expansion ability of glycerol together with water glass

Results of microwave-assisted manufacturing fine porosity-cellular glass using a liquid carbonic foaming agent (glycerol) together with water glass are presented in this paper. Under the conditions of developing the process in oxidizing atmosphere of the oven, the water glass role was to avoid the premature burning of carbon resulted after glycerol decomposing .The use of authors’ own version of microwave heating applied in the last experiments reconfirmed the solution viability and its remarkable energy efficiency. Also, as an original technique measure, water glass proportion in the mix was increased to 8-12 % leading to growing the fineness of specimen porosity