Cementitious gypsum-containing compositions and materials...

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

C - Chemistry, Metallurgy

04

B

C04B 11/28 (2006.01) A62D 1/00 (2006.01) C04B 16/00 (2006.01) C04B 28/14 (2006.01) C09K 21/00 (2006.01)

Patent

CA 2191842

A cementitious composition useful for water-resistant construction materials, including floor underlayments, backing boards, self-leveling floor materials, road patching materials, fiberboard, fire-proofing sprays, and fire-stopping materials includes about 30 wt.% to about 75 wt.% calcium sulfate beta- hemihydrate, about 10 wt.% to about 40 wt.% Portland cement, about 4 wt.% to about 20 wt.% silica fume, and about 1 wt.% to about 40 wt.% pozzolanic filler.

Une composition cimentaire utile pour des matériaux de construction résistant à l'eau, y compris des sous-couches de plancher, des panneaux de soutien, des matériaux de plancher autonivelant, des matériaux de réfection des routes, des panneaux de fibres, des pulvérisations d'ignifugation, des matériaux coupe-feu, comprend environ 30 % en poids à environ 75 % en poids de béta-semihydrate de sulfate de calcium, environ 10 % en poids à environ 40 % en poids de ciment Portland?, environ 4 % en poids à environ 20 % en poids de fumée de silice, et environ 1 % en poids à environ 40 % en poids d'une charge pouzzolanique.

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