Additive composition for plaster and gypsum mud

Abstract

A method of preparing an additive for plaster, gypsum mud, mortar, grout, and/or other cementitious compounds may comprise mixing wollastonite and garnet in a tumble mixer for a first predetermined time period. Glass beads may be added to the mixture of wollastonite and garnet. The wollastonite, garnet, and glass beads may continue to mix in the tumble mixer for a second predetermined time period. The first predetermined time period may be approximately 10 minutes. The second predetermined time period may be approximately 5 minutes. The additive may comprise approximately 50% garnet, 25% glass beads, and 25% wollastonite by weight. The mixed additive may be packaged in a granular form. The additive may be combined with plaster, gypsum mud, mortar, grout, and/or other cementitious compounds to enhance scratch resistance, reduce dust emission, and reduce clumping due to humidity without altering set time.

Dependencies are inferred from the claim text.