Cementitious veneer and laminate material incorporating reinforcing fibers
First Claim
1. A cementitious veneer comprising:
- a magnesium oxysulfate compound including magnesium sulfate, magnesium oxide, and sodium hexametaphosphate, phosphoric acid; and
a cementitious composition mixed with the magnesium oxysulfate compound to form a cementitious veneer mixture, the cementitious composition including hydrated calcium sulfate, filler, cellulose ethers, a polyvinyl alcohol polymer mixture, and one or more compositionally different fibers.
1 Assignment
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Accused Products
Abstract
A cementitious veneer and laminate composition is provided. The cementitious laminate composition includes a substrate, a primer layer applied to the substrate, the primer layer comprising a mixture of polyvinyl alcohol catalyst, Portland cement, and sand; and a cementitious veneer layer applied to the primer layer, the cementitious veneer layer comprising a mixture of magnesium sulfate, filler, magnesium oxide, gypsum cement or bassanite, cellulose ethers, and polyvinyl alcohol catalyst. The polyvinyl alcohol catalyst comprises a mixture of polyvinyl alcohol fibers dissolved in water and mixed with butylene carbonate. The veneer layer is applied to the substrate and primer layer by means including spraying and manual spreading, and can be ornamentally manipulated either before or after curing of the veneer layer. The veneer composition can be formed into laminated tiles or panels for use in building applications.
31 Citations
20 Claims
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1. A cementitious veneer comprising:
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a magnesium oxysulfate compound including magnesium sulfate, magnesium oxide, and sodium hexametaphosphate, phosphoric acid; and a cementitious composition mixed with the magnesium oxysulfate compound to form a cementitious veneer mixture, the cementitious composition including hydrated calcium sulfate, filler, cellulose ethers, a polyvinyl alcohol polymer mixture, and one or more compositionally different fibers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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- 9. A cementitious veneer comprising a cementitious composition mixed with a magnesium oxysulfate compound to form a cementitious veneer mixture, the magnesium oxysulfate compound consisting of, on a volume basis, 0.04% to 0.08% sodium hexametaphosphate, 0.06% to 0.17% phosphoric acid at a concentration of 75% to 85%, 40% to 46% magnesium sulfate, 30% to 35% magnesium oxide, 1.3% to 1.4% distilled water, 2.5% to 3.25% fly ash cenospheres, and the cementitious composition consisting of fly ash cenospheres and one or more additives including cellulose ethers and one or more compositionally different fibers.
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12. A cementitious veneer made by a process comprising:
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mixing magnesium sulfate, magnesium oxide, sodium hexametaphosphate, phosphoric acid together with water to form a magnesium oxysulfate compound; and mixing hydrated calcium sulfate, filler, cellulose ethers, a polyvinyl alcohol polymer mixture, and one or more compositionally different fibers together with water to form a cementitious composition; and combining the cementitious composition with the magnesium oxysulfate compound to form a cementitious veneer. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification