Methods and compositions using calcium carbonate

• US 9,056,790 B2
• Filed: 12/08/2014
• Issued: 06/16/2015
• Est. Priority Date: 12/31/2009
• Status: Active Grant

• Current Assignee: Arelac, Inc.
• Original Assignee: Calera Corporation
• Inventors: Chen, Irvin, Fernandez, Miguel, Patterson, Joshua, Devenney, Martin
• Primary Examiner(s): Olsen, Kaj K
• Assistant Examiner(s): HIJJI, KARAM Y
• Application Number:
  US14/563,138
• Publication Number:
  US 20150096464A1
• Time in Patent Office: 190 Days
• Field of Search: 264/DIG.43, 423/430, 106/713, 106/738
• US Class Current: 1/1
• 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 construction panel comprising, a composition or a set and hardened form of the composition wherein the composition comprises a non-naturally occurring supplementary cementitious material (SCM) or a non-naturally occurring hydraulic cement, where the SCM or the hydraulic cement comprises at least 10% w/w vaterite and at least 1% w/w aragonite, wherein the composition has a carbon isotopic fractionation value (δ

¹³C) of less than −

12‰

.

2. The construction panel of claim 1, wherein the construction panel is cement board, fiber-cement siding, drywall, or combinations thereof.

3. The construction panel of claim 2, wherein the cement board has a flexural strength of between 1-7.5 MPa, compressive strength of between 5-50 MPa, or both.

4. The construction panel of claim 2, wherein the cement board further comprises fiberglass, dispersed glass fibers, or combination thereof.

5. The construction panel of claim 2, wherein the cement board further comprises plasticizer, foaming agent, accelerator, retarder, air entrainment additive, or combinations thereof.

6. The construction panel of claim 2, wherein the fiber-cement siding has a flexural strength of between 0.5-5 MPa, compressive strength of between 2-25 MPa, or both.

7. The construction panel of claim 2, wherein the fiber-cement siding further comprises cellulose fibers, plasticizer, foaming agent, accelerator, retarder, air entrainment additive, or combinations thereof.

8. The construction panel of claim 2, wherein the drywall has a flexural strength of between 0.1-3 MPa, compressive strength of between 1-20 MPa, or both.

9. The construction panel of claim 2, wherein the drywall further comprises gypsum.

10. The construction panel of claim 2, wherein the drywall further comprises fibers, plasticizer, foaming agent, accelerator, retarder, additive that increases mildew and fire resistance, or combinations thereof.

11. The construction panel of claim 2, wherein the drywall further comprises paper, fiberglass, or combination thereof.

12. The construction panel of claim 1, further comprising fiberglass, dispersed glass fibers, plasticizer, foaming agent, accelerator, retarder, air entrainment additive, or combinations thereof.