Method for making lightweight gypsum compositions using internally generated foam and products made therefrom

摘要

A calcium sulfate hemihydrate gypsum-based composition comprising (a) alum and calcium carbonate and / or (b) zeolite and sodium percarbonate for making a foamed gypsum slurry. A method for making a foamed gypsum slurry from the composition. A method for making a foamed gypsum product from the composition. Cavity wall with a cavity filled with foamed gypsum product. [Selection] Figure 1