FIELD: manufacture of building materials.
SUBSTANCE: powdered mixture of glass, carbonate gasifier, and chemically active substance (0.8-5%) is heated in metal mold with adjustable walls and removable liner placed in oven. Heating is carried out until foaming temperature (680-740°C) for 0.8-1.5 h. resulting foamed glass blocks are then placed in annealing chamber, wherein cooling from 600°C to 50°C is accomplished at cooling velocity 1.2-1.6°C/min.
EFFECT: reduced foaming temperature.
1 tbl
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