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US 12,428,343 B2Granted
Aqueous carbonation curing method of binder composition using carbon dioxide absorbent
AssigneeKorea Advanced Institute of Science and Technology
InventorsJae Hong Kim, Seong Ho Han, Yubin Jun
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Abstract
An aqueous carbonation curing method of a binder composition according to an exemplary embodiment of the present invention includes: forming a binder composition; curing the binder composition in a negative pressure state (pre-curing step); water curing the pre-cured binder composition in an aqueous carbon dioxide absorbent solution (first curing step); and curing the first-cured binder composition in a 95% or more relative humidity atmosphere (second curing step).
Claims14
A curing method of a binder composition, the method comprising:
- forming a binder composition;
- curing the binder composition in a negative pressure state (pre-curing step);
- water curing the pre-cured binder composition in an aqueous carbon dioxide absorbent solution (first curing step);
- and
- curing the first-cured binder composition in a 95% or more relative humidity atmosphere (second curing step),
- wherein in first curing step, the aqueous carbon dioxide absorbent solution is dissolved with carbon dioxide for 5 minutes to 1 hour, and
- wherein in the first curing, the aqueous carbon dioxide absorbent solution includes an alkali activator including one or more of an aqueous alkanolamine solution including one or more of monoethanolamine (MEA), diethanolamine (DEA), and triethanolamine (TEA), or an alkaline aqueous solution including one or more of KOH and Na2SiO3.
4 more elements
Dependencies are inferred from the claim text.