Granular type foamed glass, method for forming foamed glass coating layer, and non-flammable heat insulator using same

The present invention provides a method for forming a granular type foamed glass, the method comprising: a first step for preparing a powder type waste glass; a second step for mixing the powder type waste glass with a binder to form a granular type molded body; and a third step for firing the granular type molded body to foam the molded body.