Effect of extraction solutions on carbonation of cementitious materials in aqueous solutions

Hwanju Jo; Ho Young Jo; Young Nam Jang

doi:10.1080/09593330.2011.630422

Effect of extraction solutions on carbonation of cementitious materials in aqueous solutions

Hwanju Jo, Ho Young Jo, Young Nam Jang

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

13 Citations (Scopus)

Abstract

Carbonation efficiency was evaluated for three cementitious materials having different CaO-bearing minerals (lime, Portland cement and waste concrete) using various extraction reagents (HCl, CH₃COOH, NH₄Cl and deionized water). The cementitious materials were subjected to Ca extraction and carbonation tests under ambient pressure and temperature conditions. The Ca extraction efficiency generally decreased in the order lime, Portland cement and waste concrete, regardless of the extraction solution. Among the extraction solutions, NH₄Cl was the most effective for Ca extraction and carbonation. The results of this study suggest that the types of extraction solution and CaO-bearing mineral of the materials are primary factors affecting carbonation efficiency.

Original language	English
Pages (from-to)	1391-1401
Number of pages	11
Journal	Environmental Technology (United Kingdom)
Volume	33
Issue number	12
DOIs	https://doi.org/10.1080/09593330.2011.630422
Publication status	Published - 2012 Jun 1

Bibliographical note

Funding Information:
This work was supported by the Korea Institute of Geoscience and Mineral Resources (KIGAM) (Utilization and sequestration of CO2 by using industrial minerals).

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

Keywords

Carbon dioxide
Carbonation
Cementitious materials
Global warming

ASJC Scopus subject areas

Environmental Chemistry
Water Science and Technology
Waste Management and Disposal

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10.1080/09593330.2011.630422

Cite this

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abstract = "Carbonation efficiency was evaluated for three cementitious materials having different CaO-bearing minerals (lime, Portland cement and waste concrete) using various extraction reagents (HCl, CH3COOH, NH4Cl and deionized water). The cementitious materials were subjected to Ca extraction and carbonation tests under ambient pressure and temperature conditions. The Ca extraction efficiency generally decreased in the order lime, Portland cement and waste concrete, regardless of the extraction solution. Among the extraction solutions, NH4Cl was the most effective for Ca extraction and carbonation. The results of this study suggest that the types of extraction solution and CaO-bearing mineral of the materials are primary factors affecting carbonation efficiency.",

keywords = "Carbon dioxide, Carbonation, Cementitious materials, Global warming",

author = "Hwanju Jo and Jo, {Ho Young} and Jang, {Young Nam}",

note = "Funding Information: This work was supported by the Korea Institute of Geoscience and Mineral Resources (KIGAM) (Utilization and sequestration of CO2 by using industrial minerals). Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",

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AU - Jo, Hwanju

AU - Jo, Ho Young

AU - Jang, Young Nam

N1 - Funding Information: This work was supported by the Korea Institute of Geoscience and Mineral Resources (KIGAM) (Utilization and sequestration of CO2 by using industrial minerals). Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

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N2 - Carbonation efficiency was evaluated for three cementitious materials having different CaO-bearing minerals (lime, Portland cement and waste concrete) using various extraction reagents (HCl, CH3COOH, NH4Cl and deionized water). The cementitious materials were subjected to Ca extraction and carbonation tests under ambient pressure and temperature conditions. The Ca extraction efficiency generally decreased in the order lime, Portland cement and waste concrete, regardless of the extraction solution. Among the extraction solutions, NH4Cl was the most effective for Ca extraction and carbonation. The results of this study suggest that the types of extraction solution and CaO-bearing mineral of the materials are primary factors affecting carbonation efficiency.

AB - Carbonation efficiency was evaluated for three cementitious materials having different CaO-bearing minerals (lime, Portland cement and waste concrete) using various extraction reagents (HCl, CH3COOH, NH4Cl and deionized water). The cementitious materials were subjected to Ca extraction and carbonation tests under ambient pressure and temperature conditions. The Ca extraction efficiency generally decreased in the order lime, Portland cement and waste concrete, regardless of the extraction solution. Among the extraction solutions, NH4Cl was the most effective for Ca extraction and carbonation. The results of this study suggest that the types of extraction solution and CaO-bearing mineral of the materials are primary factors affecting carbonation efficiency.

KW - Carbon dioxide

KW - Carbonation

KW - Cementitious materials

KW - Global warming

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Effect of extraction solutions on carbonation of cementitious materials in aqueous solutions

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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