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A platform for research: civil engineering, architecture and urbanism
METHOD FOR FIXING CARBON DIOXIDE AND METHOD FOR PRODUCING CEMENT ADMIXTURE
To provide a method for efficiently fixing CO2 in a hardened cementitious body and a method for producing a cement admixture.SOLUTION: A method for fixing carbon dioxide in a hardened cementitious body includes: a first carbonation step of contacting a hardened cementitious body with carbon dioxide-containing gas at 300°C or higher, and a second carbonation step of adding water to the hardened cementitious body in a solid-liquid ratio of 0.1 to 0.5 after the first carbonation step, and contacting the water-added hardened cementitious body with the gas at 20 to 100°C.SELECTED DRAWING: Figure 1
【課題】セメント質硬化体にＣＯ２を効率よく固定化する方法、及びセメント混合材の製造方法を提供すること。【解決手段】セメント質硬化体へ二酸化炭素を固定化する方法であって、セメント質硬化体と二酸化炭素を含むガスとを３００℃以上で接触させる炭酸化第一工程と、炭酸化第一工程の後に、セメント質硬化体に固液比で０．１～０．５の水を添加することと、水が添加された前記セメント質硬化体とガスとを２０～１００℃で接触させることを含む炭酸化第二工程と、を備える、方法。【選択図】図１
METHOD FOR FIXING CARBON DIOXIDE AND METHOD FOR PRODUCING CEMENT ADMIXTURE
To provide a method for efficiently fixing CO2 in a hardened cementitious body and a method for producing a cement admixture.SOLUTION: A method for fixing carbon dioxide in a hardened cementitious body includes: a first carbonation step of contacting a hardened cementitious body with carbon dioxide-containing gas at 300°C or higher, and a second carbonation step of adding water to the hardened cementitious body in a solid-liquid ratio of 0.1 to 0.5 after the first carbonation step, and contacting the water-added hardened cementitious body with the gas at 20 to 100°C.SELECTED DRAWING: Figure 1
【課題】セメント質硬化体にＣＯ２を効率よく固定化する方法、及びセメント混合材の製造方法を提供すること。【解決手段】セメント質硬化体へ二酸化炭素を固定化する方法であって、セメント質硬化体と二酸化炭素を含むガスとを３００℃以上で接触させる炭酸化第一工程と、炭酸化第一工程の後に、セメント質硬化体に固液比で０．１～０．５の水を添加することと、水が添加された前記セメント質硬化体とガスとを２０～１００℃で接触させることを含む炭酸化第二工程と、を備える、方法。【選択図】図１
METHOD FOR FIXING CARBON DIOXIDE AND METHOD FOR PRODUCING CEMENT ADMIXTURE
二酸化炭素の固定化方法、及びセメント混合材の製造方法
SUYAMA YUSUKE (author) / YAMASHITA MAKIO (author)
2024-10-15
Patent
Electronic Resource
Japanese
IPC:
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
B01D
SEPARATION
,
Trennen
/
C04B
Kalk
,
LIME
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