Utilizing mineral sequestration technology for enhanced performance of concrete containing basic oxygen furnace slag
Basic oxygen furnace slag (BOFS) is a widely available by product of the steel-making industry that poses high interest for scientists in various fields. The carbon capture potential of BOFS is proven to be high. However, its further uses are actively investigated. BOFS is particularly attractive as...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2024-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/109/e3sconf_iccue2024_02002.pdf |
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| author | Omarova Zhaniya Ualiyev Dulat Shon Chang-Seon Zhang Dichuan Kim Jong Ryeol |
| author_facet | Omarova Zhaniya Ualiyev Dulat Shon Chang-Seon Zhang Dichuan Kim Jong Ryeol |
| author_sort | Omarova Zhaniya |
| collection | DOAJ |
| description | Basic oxygen furnace slag (BOFS) is a widely available by product of the steel-making industry that poses high interest for scientists in various fields. The carbon capture potential of BOFS is proven to be high. However, its further uses are actively investigated. BOFS is particularly attractive as a construction material due to its hydraulic reactivity and good strength, making it suitable for use as binding material and aggregate in concrete. However, it has a major drawback - unstable compounds that lead to material deterioration caused by volumetric expansion. Most of the research in the field focuses on the processing of BOFS in laboratory or industrial settings to eliminate the expensive products inside the slag and make it more durable. The suitability of using mineral sequestration technology instead of artificially accelerated carbonation has not yet been studied well. This research aimed to identify the main properties of the mortar mixes containing BOFS that underwent mineral sequestration over a long period to assess the technology’s feasibility. The correlation with quantitative data from thermogravimetric analysis (TGA) was also identified. Based on test results, the correlation between aging conditions and CO2 uptake was established, indicating that stockpiled and wet/dry cycle conditions were the most optimal aging methods for BOFS to achieve the highest carbonation (4.15-5.15%), hence the maximum stabilization degree of aggregates. |
| format | Article |
| id | doaj-art-fedf3521a25a4e1bbf1d264cac157ded |
| institution | OA Journals |
| issn | 2267-1242 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj-art-fedf3521a25a4e1bbf1d264cac157ded2025-08-20T02:10:42ZengEDP SciencesE3S Web of Conferences2267-12422024-01-015790200210.1051/e3sconf/202457902002e3sconf_iccue2024_02002Utilizing mineral sequestration technology for enhanced performance of concrete containing basic oxygen furnace slagOmarova Zhaniya0Ualiyev Dulat1Shon Chang-Seon2Zhang Dichuan3Kim Jong Ryeol4Department of Civil & Environmental Engineering, Nazarbayev UniversityDepartment of Civil & Environmental Engineering, Nazarbayev UniversityDepartment of Civil & Environmental Engineering, Nazarbayev UniversityDepartment of Civil & Environmental Engineering, Nazarbayev UniversityDepartment of Civil & Environmental Engineering, Nazarbayev UniversityBasic oxygen furnace slag (BOFS) is a widely available by product of the steel-making industry that poses high interest for scientists in various fields. The carbon capture potential of BOFS is proven to be high. However, its further uses are actively investigated. BOFS is particularly attractive as a construction material due to its hydraulic reactivity and good strength, making it suitable for use as binding material and aggregate in concrete. However, it has a major drawback - unstable compounds that lead to material deterioration caused by volumetric expansion. Most of the research in the field focuses on the processing of BOFS in laboratory or industrial settings to eliminate the expensive products inside the slag and make it more durable. The suitability of using mineral sequestration technology instead of artificially accelerated carbonation has not yet been studied well. This research aimed to identify the main properties of the mortar mixes containing BOFS that underwent mineral sequestration over a long period to assess the technology’s feasibility. The correlation with quantitative data from thermogravimetric analysis (TGA) was also identified. Based on test results, the correlation between aging conditions and CO2 uptake was established, indicating that stockpiled and wet/dry cycle conditions were the most optimal aging methods for BOFS to achieve the highest carbonation (4.15-5.15%), hence the maximum stabilization degree of aggregates.https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/109/e3sconf_iccue2024_02002.pdf |
| spellingShingle | Omarova Zhaniya Ualiyev Dulat Shon Chang-Seon Zhang Dichuan Kim Jong Ryeol Utilizing mineral sequestration technology for enhanced performance of concrete containing basic oxygen furnace slag E3S Web of Conferences |
| title | Utilizing mineral sequestration technology for enhanced performance of concrete containing basic oxygen furnace slag |
| title_full | Utilizing mineral sequestration technology for enhanced performance of concrete containing basic oxygen furnace slag |
| title_fullStr | Utilizing mineral sequestration technology for enhanced performance of concrete containing basic oxygen furnace slag |
| title_full_unstemmed | Utilizing mineral sequestration technology for enhanced performance of concrete containing basic oxygen furnace slag |
| title_short | Utilizing mineral sequestration technology for enhanced performance of concrete containing basic oxygen furnace slag |
| title_sort | utilizing mineral sequestration technology for enhanced performance of concrete containing basic oxygen furnace slag |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/109/e3sconf_iccue2024_02002.pdf |
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