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US 8,062,418 B2Granted
Methods and compositions using calcium carbonate
AssigneeCalera Corporation
InventorsBrent R. Constantz, Kasra Farsad, Chris Camire, Joshua Patterson, Matthew Ginder-Vogel, Karin Yaccato, John Stagnaro, Martin Devenney, Justin Ries
Life of this patent
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Abstract
Provided herein are compositions and methods including hydraulic cement, supplementary cementitious material, and/or self-cementing material. Methods for making the compositions and using the compositions are provided.
Claims10
A non-naturally occurring self-cementing composition, consisting essentially of carbonate precipitate in water comprising:
- at least 1% w/w vaterite, wherein the composition after setting and hardening in water has a compressive strength of at least 14 MPa and wherein the composition comprises a carbon isotopic fractionation value (δ13C) of between −12‰ to −25‰.
Dependencies are inferred from the claim text.