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US 7,815,880 B2Granted
Reduced-carbon footprint concrete compositions
AssigneeCalera Corporation
InventorsBrent R. Constantz, Andrew Youngs, Terence C. Holland
Life of this patent
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Abstract
Reduced-carbon footprint concrete compositions, and methods for making and using the same, are provided. Aspects of the reduced-carbon footprint concrete compositions include CO2-sequestering carbonate compounds, which may be present in the hydraulic cement and/or aggregate components of the concrete. The reduced-carbon footprint concrete compositions find use in a variety of applications, including use in a variety of building materials and building applications.
Claims16
A method comprising:
- a) producing synthetic carbonates from a divalent cation-containing solution and an industrial waste gas comprising CO2;
- b) producing from the synthetic carbonates
- i) a first material comprising a supplementary cementitious material comprising carbonates, bicarbonates, or a combination thereof, wherein the supplementary cementitious material reacts with a hydraulic cement composition, and additionally
- ii) a second material comprising a concrete component comprising carbonates, bicarbonates, or a combination thereof selected from the group consisting of cement, aggregate, and pozzolanic material;
- and
- c) incorporating the supplementary cementitious material into a concrete composition.
3 more elements
Dependencies are inferred from the claim text.