CEMENTITIOUS GYPSUM-CONTAINING BINDERS AND COMPOSITIONS AND MATERIALS MADE THEREFROM
摘要
<p>Cementitious binders include calcium sulfate beta-hemihydrate, a cement component comprising Portland cement, and either silica fume or rice-husk ash. The silica fume or rice-husk ash component is at least about 92 wt.% amorphous silica and has an alumina content of about 0.6 wt.% or less.</p>