CA2694988A1 - Reduced-carbon footprint concrete compositions - Google Patents

Reduced-carbon footprint concrete compositions Download PDF

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Publication number
CA2694988A1
CA2694988A1 CA2694988A CA2694988A CA2694988A1 CA 2694988 A1 CA2694988 A1 CA 2694988A1 CA 2694988 A CA2694988 A CA 2694988A CA 2694988 A CA2694988 A CA 2694988A CA 2694988 A1 CA2694988 A1 CA 2694988A1
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CA
Canada
Prior art keywords
composition
carbon footprint
reduced
concrete composition
less
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2694988A
Other languages
French (fr)
Other versions
CA2694988C (en
Inventor
Brent R. Constantz
Andrew Youngs
Terence C. Holland
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arelac Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US12/571,398 external-priority patent/US7771684B2/en
Application filed by Individual filed Critical Individual
Publication of CA2694988A1 publication Critical patent/CA2694988A1/en
Application granted granted Critical
Publication of CA2694988C publication Critical patent/CA2694988C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039—Premixtures of ingredients
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/18—Carbonates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F5/00—Compounds of magnesium
    • C01F5/24—Magnesium carbonates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0004—Compounds chosen for the nature of their cations
    • C04B2103/002—Compounds of elements having a valency of 2
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0068—Ingredients with a function or property not provided for elsewhere in C04B2103/00
    • C04B2103/0086—Chelating or complexing agents
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00017—Aspects relating to the protection of the environment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

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.

Claims (30)

1. A method comprising:
a) producing a synthetic carbonate component from a divalent cation-containing solution and an industrial waste gas comprising CO2 and b) incorporating the synthetic carbonate component into a reduced-carbon footprint concrete composition, wherein the reduced-carbon footprint concrete composition has a reduced carbon footprint relative to an ordinary concrete composition.
2. The method of claim 1, wherein the reduced-carbon footprint concrete composition has a smaller carbon footprint relative to an ordinary concrete composition.
3. The method of claim 2, wherein the reduced-carbon footprint concrete composition has less than 75% of the carbon footprint as the ordinary concrete composition.
4. The method of claim 3, wherein the reduced-carbon footprint concrete composition has less than 50% of the carbon footprint as the ordinary concrete composition.
5. The method of claim 3, wherein the reduced-carbon footprint concrete composition has less than 25% of the carbon footprint as the ordinary concrete composition.
6. The method of claim 1, wherein the reduced-carbon footprint concrete composition has a neutral carbon footprint.
7. The method of claim 1, wherein the reduced-carbon footprint concrete composition has a negative carbon footprint.
8. The method of claim 6 or claim 7, wherein the carbon footprint of the reduced-carbon footprint concrete composition results from both carbon dioxide that is sequestered and carbon dioxide that is avoided.
9. The method of 7, wherein the negative carbon footprint is less than 0 lbs CO2/yd3 of the reduced concrete composition.
10. The method of 7, wherein the negative carbon footprint is less than 250 lbs CO2/yd3 of the reduced concrete composition.

10. The method of 7, wherein the negative carbon footprint is less than 500 lbs CO2/yd3 of the reduced concrete composition.

10. The method of 7, wherein the negative carbon footprint is less than 1000 lbs CO2/yd3 of the reduced concrete composition.
11. The method of claim 1, wherein the synthetic carbonate component is supplementary cementitious material, fine aggregate, coarse aggregate, or reactive pozzolanic material.
12. The method of claim 11, wherein the synthetic carbonate component is aragonite, nesquehonite, hydromagnesite, monohydrocalcite, or a combination thereof.
13. The method of claim 12, wherein the synthetic carbonate component is a combination of aragonite and hydromagnesite.
14. The method of claim 12, wherein the synthetic carbonate component is a combination of aragonite and nesquehonite.
15. The method of claim 12, wherein the synthetic carbonate component is a combination of nesquehonite and monohydrocalcite.
16. The method of claim 12, wherein the synthetic carbonate component has a .delta.13C less than -10o/oo.
17. The method of claim 12, wherein the synthetic carbonate component has a .delta.13C less than -20o/oo.
18. The method of claim 12, wherein the synthetic carbonate component has a .delta.13C less than -30o/oo.
19. A reduced-carbon footprint composition produced by the method of claim 1.
20. A composition comprising between 2.5% and 50% calcium; between 2.5% and 50% magnesium; and at least 25% carbonates, bicarbonates, or a mixture thereof.
21. The composition of claim 20, wherein the composition comprises between 2.5% and 25% calcium.
22. The composition of claim 21, wherein the composition comprises between 5%
and 10% calcium.
23. The composition of claim 20, wherein the composition comprises between 5%
and 30% magnesium.
24. The composition of claim 23, wherein the composition comprises between 10%
and 30% magnesium.
25. The composition of claim 20, wherein the composition comprises at least 50% carbonates, bicarbonates, or a mixture thereof.
26. The composition of claim 25, wherein the composition comprises at least 75% carbonates, bicarbonates, or a mixture thereof.
27. The composition of claim 20, wherein the composition comprises aragonite, nesquehonite, hydromagnesite, monohydrocalcite, or a combination thereof.
28. The composition of claim 27, wherein the composition comprises a combination of aragonite and hydromagnesite.
29. The composition of claim 27, wherein the composition comprises a combination of aragonite and nesquehonite.
30. The composition of claim 27, wherein the composition comprises a combination of nesquehonite and monohydrocalcite.
CA2694988A 2008-10-22 2009-10-22 Reduced-carbon footprint concrete compositions Active CA2694988C (en)

Applications Claiming Priority (23)

Application Number Priority Date Filing Date Title
US10764508P 2008-10-22 2008-10-22
US61/107,645 2008-10-22
US11048908P 2008-10-31 2008-10-31
US61/110,489 2008-10-31
US11614108P 2008-11-19 2008-11-19
US61/116,141 2008-11-19
US11754208P 2008-11-24 2008-11-24
US61/117,542 2008-11-24
US14835309P 2009-01-29 2009-01-29
US61/148,353 2009-01-29
US14961009P 2009-02-03 2009-02-03
US14964009P 2009-02-03 2009-02-03
US61/149,640 2009-02-03
US61/149,610 2009-02-03
US22588009P 2009-07-15 2009-07-15
US61/225,880 2009-07-15
US23425109P 2009-08-14 2009-08-14
US61/234,251 2009-08-14
US24604209P 2009-09-25 2009-09-25
US61/246,042 2009-09-25
US12/571,398 US7771684B2 (en) 2008-09-30 2009-09-30 CO2-sequestering formed building materials
US12/571,398 2009-09-30
PCT/US2009/061748 WO2010048457A1 (en) 2008-10-22 2009-10-22 Reduced-carbon footprint concrete compositions

Publications (2)

Publication Number Publication Date
CA2694988A1 true CA2694988A1 (en) 2010-04-22
CA2694988C CA2694988C (en) 2011-09-20

Family

ID=42119690

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2694988A Active CA2694988C (en) 2008-10-22 2009-10-22 Reduced-carbon footprint concrete compositions

Country Status (5)

Country Link
EP (1) EP2352706A4 (en)
CN (1) CN101939269B (en)
AU (2) AU2009287466B2 (en)
CA (1) CA2694988C (en)
WO (1) WO2010048457A1 (en)

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Also Published As

Publication number Publication date
AU2010246393A1 (en) 2010-12-16
AU2009287466A1 (en) 2010-05-06
EP2352706A4 (en) 2011-11-16
WO2010048457A1 (en) 2010-04-29
CN101939269B (en) 2014-08-06
CA2694988C (en) 2011-09-20
CN101939269A (en) 2011-01-05
EP2352706A1 (en) 2011-08-10
AU2009287466B2 (en) 2010-09-16

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