GYPSUM-CONTAINING PRODUCT HAVING INCREASED RESISTANCE TO PERMANENT DEFORMATION AND METHOD AND COMPOSITION FOR PRODUCING IT

The invention provides a set gypsum-containing product having increased resistance to permanent deformation and a method for preparing it comprising forming a mixture of a calcium sulfate material, water, and an appropriate amount of one or more enhancing materials chosen from condensed phosphoric a...

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Bibliographic Details
Main Authors JONES FREDERICK T, HENKELS PAUL J, SUCECH STEVEN W, GROZA BRENT E, MLINAC RAYMOND J, YU QIANG
Format Patent
LanguageEnglish
Published 14.02.2000
Edition7
Subjects
ARTIFICIAL STONE
BUILDING
BUILDING MATERIALS
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
FIXED CONSTRUCTIONS
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
LIME, MAGNESIA
METALLURGY
PERFORMING OPERATIONS
REFRACTORIES
SLAG
STRUCTURAL ELEMENTS
TRANSPORTING
TREATMENT OF NATURAL STONE
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Summary:The invention provides a set gypsum-containing product having increased resistance to permanent deformation and a method for preparing it comprising forming a mixture of a calcium sulfate material, water, and an appropriate amount of one or more enhancing materials chosen from condensed phosphoric acids, each of which comprises 2 or more phosphoric acid units; and salts or ions of condensed phosphates each of which comprises 2 or more phosphate units. The mixture is then maintained under conditions sufficient for the calcium sulfate material to form a set gypsum material.
Bibliography:Application Number: SK19990000423