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Development of Serpentine Carbon Sequestration Foamed Concrete with Self-Carbonation Mechanism
Serpentine tailings could be used as a low-carbon binder to replace Portland cement. This paper developed a novel technique of foamed concrete using serpentine tailings, reactive magnesium oxide (RMC), and carbon dioxide (CO2) foams, so called serpentine carbon sequestration foamed concrete (S-FC). The technology enhances the carbonation efficiency and mechanical performance of MgO-based materials by combining a foaming agent with CO2 curing. Six sample groups were prepared to investigate the impact of serpentine proportions on the mechanical behavior and microstructure of S-FC. Hydration of serpentine and RMC was evaluated by isothermal calorimetry. Compressive strength results were used to assess the mechanical performance of SC-FLS samples. Quantification of hydrate and carbonate phases was conducted via XRD and TGA to examine the potential of SC-FLS in carbon sequestration. An optimal design was determined for serpentine content by the combination of the above tests. Results highlight the capacity of SC-FLS to sequester CO2 actively.
Development of Serpentine Carbon Sequestration Foamed Concrete with Self-Carbonation Mechanism
Serpentine tailings could be used as a low-carbon binder to replace Portland cement. This paper developed a novel technique of foamed concrete using serpentine tailings, reactive magnesium oxide (RMC), and carbon dioxide (CO2) foams, so called serpentine carbon sequestration foamed concrete (S-FC). The technology enhances the carbonation efficiency and mechanical performance of MgO-based materials by combining a foaming agent with CO2 curing. Six sample groups were prepared to investigate the impact of serpentine proportions on the mechanical behavior and microstructure of S-FC. Hydration of serpentine and RMC was evaluated by isothermal calorimetry. Compressive strength results were used to assess the mechanical performance of SC-FLS samples. Quantification of hydrate and carbonate phases was conducted via XRD and TGA to examine the potential of SC-FLS in carbon sequestration. An optimal design was determined for serpentine content by the combination of the above tests. Results highlight the capacity of SC-FLS to sequester CO2 actively.
Development of Serpentine Carbon Sequestration Foamed Concrete with Self-Carbonation Mechanism
Lecture Notes in Civil Engineering
Wu, Wei (editor) / Leung, Chun Fai (editor) / Zhou, Yingxin (editor) / Li, Xiaozhao (editor) / Zhang, Xiang (author) / Liu, Songyu (author)
Conference of the Associated research Centers for the Urban Underground Space ; 2023 ; Boulevard, Singapore
Proceedings of the 18th Conference of the Associated Research Centers for the Urban Underground Space ; Chapter: 150 ; 1163-1165
2024-07-10
3 pages
Article/Chapter (Book)
Electronic Resource
English
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