Cementitious gypsum-containing binders and compositions and...

Details Cementitious gypsum-containing binders and compositions and... Cementitious gypsum-containing binders and compositions and...

C - Chemistry, Metallurgy

04

B

261/59

C04B 28/14 (2006.01) A62D 1/00 (2006.01)

Patent

CA 2286609

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.

Liants à base de ciment comprenant du béta-semi-hydrate de sulfate de calcium, un composant ciment contenant du ciment Portland, et soit de la fumée de silice, soit de la cendre de balle de riz. Le composant fumée de silice ou cendre de balle de riz comprend au moins 92 % en poids de silice amorphe et présente une teneur d'alumine égale ou inférieure à environ 0,6 % en poids.

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