Methods and compositions using calcium carbonate

• US 8,114,214 B2
• Filed: 08/16/2010
• Issued: 02/14/2012
• Est. Priority Date: 12/31/2009
• Status: Active Grant

• Current Assignee: Arelac, Inc.
• Original Assignee: Calera Corporation
• Inventors: Constantz, Brent R., Farsad, Kasra, Camire, Chris, Patterson, Joshua, Fernandez, Miguel, Yaccato, Karin, Thatcher, Ryan, Stagnaro, John, Omelon, Sidney, Hodson, Keith, Clodic, Laurence, Holland, Terence C., Ries, Justin, Chen, Irvin, Geramita, Katharine
• Primary Examiner(s): Lorengo, Jerry
• Assistant Examiner(s): Hijji, Karam
• Application Number:
  US12/857,267
• Publication Number:
  US 20110067603A1
• Time in Patent Office: 547 Days
• Field of Search: None
• US Class Current: 106/738
• CPC Class Codes: B01D 2251/404 of calcium
• CPC Class Codes: B01D 2257/504 Carbon dioxide
• CPC Class Codes: B01D 2258/0233 from cement factories
• CPC Class Codes: B01D 53/62 Carbon oxides
• CPC Class Codes: C04B 14/28 of calcium
• CPC Class Codes: C04B 28/02 containing hydraulic cements other than calcium sulfates
• CPC Class Codes: C04B 28/04 Portland cements
• CPC Class Codes: Y02C 20/40 of CO2
• CPC Class Codes: Y02P 40/10 Production of cement, e.g. improving or optimising the production methods; Cement grinding
• CPC Class Codes: Y10S 264/43 Processes of curing clay and concrete materials

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.

Claims

1. A composition, comprising a non-naturally occurring supplementary cementitious material (SCM), the SCM comprising at least 47% w/w vaterite, wherein the composition upon combination with water, setting, and hardening, has a compressive strength of at least 14 MPa and wherein the composition comprises a carbon isotopic fractionation value (δ

¹³C) of between −

12‰

to −

25‰

.

3. The composition of claim 1, wherein the composition has a compressive strength in a range of 20-40 MPa.

4. The composition of claim 1, wherein the vaterite is in a range of 47% w/w to 99% w/w.

6. The composition of claim 1, further comprising a polymorph selected from the group consisting of amorphous calcium carbonate, aragonite, calcite, ikaite, a precursor phase of vaterite, a precursor phase of aragonite, an intermediary phase that is less stable than calcite, polymorphic forms in between these polymorphs, and combination thereof.

7. The composition of claim 1, further comprising strontium (Sr) in an amount of 1-50,000 parts per million (ppm).

8. The composition of claim 1, wherein the composition is a particulate composition with an average particle size of 0.1-100 microns.

9. The composition of claim 1, further comprising nitrogen oxide, sulfur oxide, mercury, metal, derivative of any of nitrogen oxide, sulfur oxide, mercury, metal, or combination thereof.

10. The composition of claim 1, further comprising Portland cement clinker, aggregate, other supplementary cementitious material (SCM), or combination thereof.

11. A composition, comprising a SCM of claim 1, wherein at least 16% by wt of SCM mixed with OPC upon combination with water, setting, and hardening, results in no more than 10% reduction in a compressive strength of the OPC at 28 days when compared to the compressive strength in a range of 17-45 MPa of the OPC along upon combination with water, setting, and hardening.

2. A composition, comprising a non-naturally occurring SCM, the SCM comprising at least 10% w/w vaterite and at least 1% w/w amorphous calcium carbonate (ACC), wherein the composition upon combination with water, setting, and hardening has a compressive strength of at least 14 MPa and wherein the composition comprises a carbon isotopic fractionation value (δ

¹³C) of between −

12‰

to −

25‰

.

5. The composition of claim 2, wherein the composition comprises ACC in a range of 1% w/w to 53% w/w.