This article addresses experiments and theories of a self-compacting gypsum-based
lightweight composite (SGLC). A β-hemihydrate is used as binder and lightweight aggregate …

The invention provides a light weight composite gypsum board including a foamed low
density set gypsum core, a top non-foamed (or reduced-foamed) bonding high density layer …

This invention provides low dust low density gypsum wall board products having high total
core void volumes, corre sponding to low densities in the range of about 10 to 30 pcf. The …

An about ⅝ inch to ¾ inch thick low weight, low density gypsum panel with fire resistance
capabilities sufficient to provide a Thermal Insulation Index of at least 17.0 minutes which …

This invention provides gypsum wallboards with a unique microstructure where the walls
between voids are enhanced in thickness and strength to Substantially improve the strength …

The invention generally provides gypsum-containing slurries including stucco, a
hydroxyethylated starch, naphthalenesulfonate dispersant, and sodium trimetaphosphate …

The invention generally provides gypsum-containing slurries including stucco,
naphthalenesulfonate dispersant, and pregelatinized starch. The naphthalenesulfonate …

The invention generally provides gypsum-containing slurries including stucco,
naphthalenesulfonate dispersant, and pregelatinized starch. The naphthalenesulfonate …

Disclosed is a composite gypsum board comprising a board core and a concentrated layer
of substantial thickness (eg, at least about 0.02 inches). The concentrated layer includes a …

The invention generally provides gypsum-containing slurries including stucco,
naphthalenesulfonate dispersant, and pregelatinized starch. The naphthalenesulfonate …