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US 2016/0107934 A1Published application
Inorganic admixtures for mitigating against conversion phenomena in high-alumina cements
AssigneeThe Regents of the University of California
InventorsGaurav Sant, Magdalena Balonis-Sant
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Abstract
A manufacturing process of a cement product includes: (1) incorporating at least one additive into a high-alumina cement composition, wherein the at least one additive is selected from nitrate-containing salts, nitrite-containing salts, carbonate-containing salts, sulfate-containing salts, chloride-containing salts, and hydroxide-containing salts; and (2) curing the high-alumina cement composition to form the cement product.
Claims20
A manufacturing process of a cement product, comprising:
- (1) incorporating at least one additive into a high-alumina cement composition, wherein the at least one additive is selected from nitrate-containing salts, nitrite-containing salts, carbonate-containing salts, sulfate-containing salts, chloride-containing salts, and hydroxide-containing salts;
- and
- (2) curing the high-alumina cement composition to form the cement product.
A manufacturing process of a cement product, comprising:
- (1) forming a cement composition by combining
- a) a cement,
- b) at least one additive, and
- c) water,
- wherein monocalcium aluminate constitutes at least 30% by weight of the cement,
- wherein the at least one additive is a source of at least one of nitrate anions, nitrite anions, carbonate anions, sulfate anions, chloride anions, and hydroxide anions,
- wherein an additive-to-cement weight ratio is at least 0.05,
- wherein a water-to-cement weight ratio is greater than 0.4;
- and
- (2) curing the cement composition to form the cement product.
7 more elements
A cement product, comprising:
- a binder including at least one AFm phase selected from NO3-AFm, NO2-AFm, SO4-AFm, CO3-AFm, Cl-AFm, and OH-AFm.
Dependencies are inferred from the claim text.