Cement chemistries
AssigneeSolidia Technologies, Inc.
InventorVahit Atakan
Life of this patent
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Abstract
A method of curing a low Ca/Mg cement composition is described that includes providing a predetermined quantity of the low Ca/Mg cement composition in uncured form; and reacting the uncured low Ca/Mg cement composition with a reagent chemical for a time sufficient to cure said cementitious material, wherein said reagent chemical is a compound synthesized from CO2 and comprises dicarboxylic acids, tricarboxylic acids, or alpha-hydroxycarboxylic acids.
Claims24
A method of producing a cured cement composition, comprising the steps of:
- providing a predetermined quantity of the low Ca/Mg cement composition in uncured form wherein the low Ca/Mg cement composition comprises at least one of:
- (i) crystalline gehlenite and amorphous calcium aluminum silicate;
- or (ii) crystalline anorthite and amorphous calcium aluminum silicate;
- and
- reacting the uncured low Ca/Mg cement composition with about 1 wt % or more relative to the total weight of the low Ca/Mg cement composition, of a reagent chemical for a time sufficient to cure said cementitious material,
- wherein said reagent chemical is a compound consisting of one or more of:
- dicarboxylic acids, tricarboxylic acids, alpha-hydroxycarboxylic acids, salts of dicarboxylic acids, salts of tricarboxylic acids, or salts of alpha-hydroxycarboxylic acids, and
- wherein the reaction between the low Ca/Mg cement composition and the reagent chemical forms an insoluble calcium or magnesium compound and a SiO2 and/or Al2O3 complex as reaction products.
A method of forming a cured concrete material comprising:
- mixing aggregate with a predetermined quantity of a low Ca/Mg cement composition in uncured form, wherein the low Ca/Mg cement composition comprises at least one of:
- (i) crystalline gehlenite and amorphous calcium aluminum silicate;
- or (ii) crystalline anorthite and amorphous calcium aluminum silicate;
- reacting the uncured low Ca/Mg cement composition with about 1 wt % or more, relative to the total weight of the low Ca/Mg cement composition, of a reagent chemical for a time sufficient to cure said cementitious material,
- wherein said reagent chemical is a compound consisting of one or more of:
- dicarboxylic acids, tricarboxylic acids, alpha-hydroxycarboxylic acids, salts of dicarboxylic acids, salts of tricarboxylic acids, or salts of alpha-hydroxycarboxylic acids, and
- wherein the reaction between the low Ca/Mg cement composition and the reagent chemical forms an insoluble calcium or magnesium compound and a SiO2 and/or Al2O3 complex as reaction products.
A method of producing a cured cement composition, comprising the steps of:
- providing a predetermined quantity of the low Ca/Mg cement composition in uncured form wherein the low Ca/Mg cement composition comprises at least one of:
- (i) crystalline gehlenite and amorphous calcium aluminum silicate;
- or (ii) crystalline anorthite and amorphous calcium aluminum silicate;
- and
- reacting the uncured low Ca/Mg cement composition with about 1 wt % or more, relative to the total weight of the low Ca/Mg cement composition, of a reagent chemical for a time sufficient to cure said cementitious material,
- wherein said reagent chemical is a compound consisting of one or more of:
- dicarboxylic acids, tricarboxylic acids, alpha-hydroxycarboxylic acids, salts of dicarboxylic acids, salts of tricarboxylic acids, or salts of alpha-hydroxycarboxylic acids.
Dependencies are inferred from the claim text.