Cementitious gypsum-containing compositions and materials made t

Details Cementitious gypsum-containing compositions and materials made t Cementitious gypsum-containing compositions and materials made t

1996-10-18

1998-02-17

Marcheschi, Michael

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106 1811, 106 1812, 106672, 106675, 106679, 106680, 106705, 106711, 106715, 106716, 106724, 106726, 106732, 106737, 106778, 106780, 106788, 106819, 106823, C04B 704, C04B 1128, C09D 106, C09D 518

Patent

active

057187592

ABSTRACT:
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 20 wt. % to about 75 wt. % calcium sulfate beta-hemihydrate, about 10 wt. % to about 50 wt. % Portland cement, about 4 wt. % to about 20 wt. % silica fume and about 1 wt. % to about 50 wt. % pozzolanic aggregate. The Portland cement component may also be a blend of Portland cement with fly ash and/or ground blast slag.

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