초록 ▼

A set gypsum composition and methods for the preparation thereof are disclosed. The set gypsum composition comprises a continuous phase of interlocking set gypsum matrix having an enhanced water voids volume and/or is prepared from a mixture (e.g., slurry) comprising an elevated ratio of water to ca

A set gypsum composition and methods for the preparation thereof are disclosed. The set gypsum composition comprises a continuous phase of interlocking set gypsum matrix having an enhanced water voids volume and/or is prepared from a mixture (e.g., slurry) comprising an elevated ratio of water to calcined gypsum. Also disclosed is an article comprising the set gypsum composition.

대표청구항 ▼

1. A set gypsum composition prepared by a method comprising:preparing a mixture formed from at least calcined gypsum and water, wherein at least 30 wt. % of said calcined gypsum is non-fibrous and wherein the weigh ratio of water to calcined gypsum used to form the mixture is at least about 3:1; and

1. A set gypsum composition prepared by a method comprising:preparing a mixture formed from at least calcined gypsum and water, wherein at least 30 wt. % of said calcined gypsum is non-fibrous and wherein the weigh ratio of water to calcined gypsum used to form the mixture is at least about 3:1; and maintaining the mixture under conditions sufficient for the calcined gypsum to form an interlocking matrix of set gypsum.