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US 9,061,940 B2Granted
Concrete compositions and methods
AssigneeCalera Corporation
InventorsIrvin Chen, Patricia Tung Lee, Joshua Patterson
Life of this patent
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Abstract
Provided herein are compositions, methods, and systems for cementitious compositions containing calcium carbonate compositions and aggregate. The compositions find use in a variety of applications, including use in a variety of building materials and building applications.
Claims23
A cementitious composition, comprising:
- between 10-55 wt % of a composition comprising calcium carbonate, wherein between 50-100 wt % of the calcium carbonate is in a metastable polymorphic form comprising vaterite, and wherein the calcium carbonate has a δ13C value of between −12 to −30‰;
- and
- between 45-90 wt % of aggregate,
- wherein the cementitious composition after combination with water sets and hardens into cement wherein the calcium carbonate binds to the aggregate.
1 more element
A cementitious composition, comprising:
- between 10-55 wt % of a composition comprising calcium carbonate, wherein between 50-100 wt % of the calcium carbonate is in a metastable polymorphic form comprising vaterite, and wherein the calcium carbonate has a δ13C value of between −12 to −30‰;
- and
- between 45-90 wt % of aggregate,
- wherein the cementitious composition after combination with water sets and hardens into brick or block wherein the calcium carbonate binds to the aggregate.
1 more element
Dependencies are inferred from the claim text.