Magnesium oxychloride cement
AssigneeMaya Magstone, Inc.
InventorsGeorge Eccles Caine, Charles W. Ellis
Life of this patent
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Abstract
Magnesium oxychloride cement is formed by mixing a magnesium chloride (MgCl2) brine solution with a magnesium oxide (MgO) composition in a selected stoichiometric ratio of MgCl2, MgO, and H2O that forms the 5 phase magnesium oxychloride cement composition. Although Sorel cements formed from the mixture of MgCl2, MgO can form a variety of compounds, the inventive systems and methods provide for controlling the cement kinetics to form the five phase magnesium oxychloride cement composition and results in an improved and stable cement composition. Various fillers can be optionally added to form preferred cement materials for uses as diverse such as road stripping, fire-proofing, fire barriers, cement repair, and mortar.
Claims10
A cementitious material comprising:
- a magnesium oxychloride cement comprising at least about 80% of the 5 phase compound:
- 5Mg(OH)2.MgCl2.8H2O;
- and
- one or more fillers.
A cementitious material comprising:
- a magnesium oxychloride cement produced by combining ingredients in a selected ratio, the ingredients comprising:
- a magnesium chloride brine solution at a first weight percent of the magnesium oxychloride cement, the brine solution having a specific gravity in the range of from about 27° Baume to about 34° Baume;
- a magnesium oxide composition at a second weight percent of the magnesium oxychloride cement, wherein the ratio of the first weight percent to the second weight percent is selected to provide substantially stoichiometric ratios of MgCl2 and H2O to MgO to form a magnesium oxychloride cement composition according to the 5 phase reaction:
- 5MgO+MgCl2+13H2O→5Mg(OH)2.MgCl2.8H2O;
- and
- one or more filler materials mixed with the magnesium oxychloride cement.
Dependencies are inferred from the claim text.