Magnesium-based cements for CO2 capture and utilisation

Jennie Morrison; Guillaume Jauffret; Jose Luis Galvez-Martos; Fredrik P. Glasser

doi:10.1016/j.cemconres.2015.12.016

Magnesium-based cements for CO₂ capture and utilisation

Jennie Morrison^*
, Guillaume Jauffret
, Jose Luis Galvez-Martos
, Fredrik P. Glasser

^*Corresponding author for this work

University of Aberdeen

Research output: Contribution to journal › Article › peer-review

90 Citations (Scopus)

Abstract

Magnesium from reject desalination brine is reacted at atmospheric pressure and 25-65 °C with CO₂ from industrial effluent combustion gas, precipitating preferably nesquehonite, MgCO₃.3H₂O. Nesquehonite can be thermally activated so that, when remixed with water, it is self-cementing. At ambient temperature, cure durations are typically ∼ 1-3 days. The nesquehonite-based product contains ∼ 32 wt% sequestered carbon dioxide and, at end of use, can be recycled without loss of CO₂. As an application example, cast nesquehonite products are suitable to form lightweight, incombustible building materials with densities in the range 700-900 kg/m³. Compressive strengths of the cast products are low, ca 2-4 MPa, thus application is envisaged to be broadly similar to that of gypsum-based products.

Original language	English
Pages (from-to)	183-191
Number of pages	9
Journal	Cement and Concrete Research
Volume	85
DOIs	https://doi.org/10.1016/j.cemconres.2015.12.016
Publication status	Published - 1 Jul 2016
Externally published	Yes

Keywords

Carbon utilisation in nesquehonite
Cement manufacture (E)
Microstructure (B)
Physical properties (C)
Thermal treatment (A)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.cemconres.2015.12.016

Cite this

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title = "Magnesium-based cements for CO2 capture and utilisation",

abstract = "Magnesium from reject desalination brine is reacted at atmospheric pressure and 25-65 °C with CO2 from industrial effluent combustion gas, precipitating preferably nesquehonite, MgCO3.3H2O. Nesquehonite can be thermally activated so that, when remixed with water, it is self-cementing. At ambient temperature, cure durations are typically ∼ 1-3 days. The nesquehonite-based product contains ∼ 32 wt\% sequestered carbon dioxide and, at end of use, can be recycled without loss of CO2. As an application example, cast nesquehonite products are suitable to form lightweight, incombustible building materials with densities in the range 700-900 kg/m3. Compressive strengths of the cast products are low, ca 2-4 MPa, thus application is envisaged to be broadly similar to that of gypsum-based products.",

keywords = "Carbon utilisation in nesquehonite, Cement manufacture (E), Microstructure (B), Physical properties (C), Thermal treatment (A)",

author = "Jennie Morrison and Guillaume Jauffret and Galvez-Martos, \{Jose Luis\} and Glasser, \{Fredrik P.\}",

year = "2016",

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doi = "10.1016/j.cemconres.2015.12.016",

language = "English",

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journal = "Cement and Concrete Research",

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T1 - Magnesium-based cements for CO2 capture and utilisation

AU - Morrison, Jennie

AU - Jauffret, Guillaume

AU - Galvez-Martos, Jose Luis

AU - Glasser, Fredrik P.

PY - 2016/7/1

Y1 - 2016/7/1

N2 - Magnesium from reject desalination brine is reacted at atmospheric pressure and 25-65 °C with CO2 from industrial effluent combustion gas, precipitating preferably nesquehonite, MgCO3.3H2O. Nesquehonite can be thermally activated so that, when remixed with water, it is self-cementing. At ambient temperature, cure durations are typically ∼ 1-3 days. The nesquehonite-based product contains ∼ 32 wt% sequestered carbon dioxide and, at end of use, can be recycled without loss of CO2. As an application example, cast nesquehonite products are suitable to form lightweight, incombustible building materials with densities in the range 700-900 kg/m3. Compressive strengths of the cast products are low, ca 2-4 MPa, thus application is envisaged to be broadly similar to that of gypsum-based products.

AB - Magnesium from reject desalination brine is reacted at atmospheric pressure and 25-65 °C with CO2 from industrial effluent combustion gas, precipitating preferably nesquehonite, MgCO3.3H2O. Nesquehonite can be thermally activated so that, when remixed with water, it is self-cementing. At ambient temperature, cure durations are typically ∼ 1-3 days. The nesquehonite-based product contains ∼ 32 wt% sequestered carbon dioxide and, at end of use, can be recycled without loss of CO2. As an application example, cast nesquehonite products are suitable to form lightweight, incombustible building materials with densities in the range 700-900 kg/m3. Compressive strengths of the cast products are low, ca 2-4 MPa, thus application is envisaged to be broadly similar to that of gypsum-based products.

KW - Carbon utilisation in nesquehonite

KW - Cement manufacture (E)

KW - Microstructure (B)

KW - Physical properties (C)

KW - Thermal treatment (A)

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