Carbonation of reactive magnesia cement (RMC)-based systems

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United States of America

PATENT NO 12180118
APP PUB NO 20220153647A1
SERIAL NO

17455203

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Abstract

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Herein discloses a method of carbonating reactive magnesia cement, which includes: (i) providing an aqueous suspension including a carbon dioxide-producing bacteria; (ii) mixing the aqueous suspension with a precursor which the carbon dioxide-producing bacteria generates carbon dioxide from for a duration to form an aqueous mixture sufficient for substantially carbonating the reactive magnesia cement; (iii) mixing the aqueous mixture with the reactive magnesia cement to form a blend; wherein a nutrient is provided in the aqueous suspension of step (i) or in the reactive magnesia cement of step (iii) to sustain the carbon dioxide-producing bacteria in the reactive magnesia cement; and (iv) curing the blend to carbonate the reactive magnesia cement. A reactive magnesia cement composite formed by the method is also disclosed.

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Patent Owner(s)

Patent OwnerAddress
NANYANG TECHNOLOGICAL UNIVERSITYSINGAPORE 639798

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nguyen, Tien Dung Singapore, SG 16 45
Unluer, Cise Singapore, SG 1 0
Xiao, Xi Singapore, SG 19 18
Yang, En-Hua Singapore, SG 7 37

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