Blended Cement Mixed with Basic Oxygen Steelmaking Slag (BOF) as an Alternative Green Building Material
Portland cement tends to exhibit negative environmental impacts; thus, it is required to find measures that will improve its green credentials. In this study, we report a blended Portland slag cement as an alternative environmentally-friendly building material in order to reduce the total carbon foo...
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MDPI AG
2020-07-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/13/14/3062 |
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| author | Assel Jexembayeva Talal Salem Pengcheng Jiao Bozhi Hou Rimma Niyazbekova |
| author_facet | Assel Jexembayeva Talal Salem Pengcheng Jiao Bozhi Hou Rimma Niyazbekova |
| author_sort | Assel Jexembayeva |
| collection | DOAJ |
| description | Portland cement tends to exhibit negative environmental impacts; thus, it is required to find measures that will improve its green credentials. In this study, we report a blended Portland slag cement as an alternative environmentally-friendly building material in order to reduce the total carbon footprint resulted from the production of the ordinary Portland cement (OPC), which may resolve the environmental issues associated with carbon dioxide emissions. The ordinary Portland cement type I enhanced by basic oxygen steelmaking slag (BOF) is produced and casted into cubic and beam-like samples for the compressive and three-point bending tests, and the compressive and flexural strengths are experimentally measured. Numerical simulations are conducted to compare with the experimental result and satisfactory agreements are obtained. X-ray diffraction (XRD) investigations and porosity tests are then carried out using the semi-adiabatic calorimetry, which indicates that 5% BOF is the optimal ratio to accelerate the hydration process while increasing the amount of hydration products, especially at the early curing age of 3 days. Scanning electron microscope (SEM) images further indicate that BOF can be used to prevent the development of microcracks while mitigating their propagation within cement mortar. Our study indicates that the compressive strength of OPC can be critically increased by BOF at the relatively low concentrations of 5%. The blended slag cement reported in this paper provides advanced understanding on the green building material that uses byproduct wastes for the mechanical and electrical performance. |
| first_indexed | 2024-03-10T18:35:57Z |
| format | Article |
| id | doaj.art-cc3f6bcbd64640dfbd195ea17cbefc14 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T18:35:57Z |
| publishDate | 2020-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-cc3f6bcbd64640dfbd195ea17cbefc142023-11-20T06:15:04ZengMDPI AGMaterials1996-19442020-07-011314306210.3390/ma13143062Blended Cement Mixed with Basic Oxygen Steelmaking Slag (BOF) as an Alternative Green Building MaterialAssel Jexembayeva0Talal Salem1Pengcheng Jiao2Bozhi Hou3Rimma Niyazbekova4Department of Civil and Environmental Engineering, Michigan State University, East Lansing, MI 48824, USADepartment of Civil and Environmental Engineering, Michigan State University, East Lansing, MI 48824, USAInstitute of Port, Coastal and Offshore Engineering, Ocean College, Zhejiang University, Zhoushan 316021, ChinaInstitute of Port, Coastal and Offshore Engineering, Ocean College, Zhejiang University, Zhoushan 316021, ChinaTechnical Faculty, Saken Seifullin Kazakh Agro Technical University, Astana 010011, KazakhstanPortland cement tends to exhibit negative environmental impacts; thus, it is required to find measures that will improve its green credentials. In this study, we report a blended Portland slag cement as an alternative environmentally-friendly building material in order to reduce the total carbon footprint resulted from the production of the ordinary Portland cement (OPC), which may resolve the environmental issues associated with carbon dioxide emissions. The ordinary Portland cement type I enhanced by basic oxygen steelmaking slag (BOF) is produced and casted into cubic and beam-like samples for the compressive and three-point bending tests, and the compressive and flexural strengths are experimentally measured. Numerical simulations are conducted to compare with the experimental result and satisfactory agreements are obtained. X-ray diffraction (XRD) investigations and porosity tests are then carried out using the semi-adiabatic calorimetry, which indicates that 5% BOF is the optimal ratio to accelerate the hydration process while increasing the amount of hydration products, especially at the early curing age of 3 days. Scanning electron microscope (SEM) images further indicate that BOF can be used to prevent the development of microcracks while mitigating their propagation within cement mortar. Our study indicates that the compressive strength of OPC can be critically increased by BOF at the relatively low concentrations of 5%. The blended slag cement reported in this paper provides advanced understanding on the green building material that uses byproduct wastes for the mechanical and electrical performance.https://www.mdpi.com/1996-1944/13/14/3062blended Portland slag cementbasic oxygen steelmaking slag (BOF)ordinary Portland cement (OPC)mechanical and chemical properties |
| spellingShingle | Assel Jexembayeva Talal Salem Pengcheng Jiao Bozhi Hou Rimma Niyazbekova Blended Cement Mixed with Basic Oxygen Steelmaking Slag (BOF) as an Alternative Green Building Material Materials blended Portland slag cement basic oxygen steelmaking slag (BOF) ordinary Portland cement (OPC) mechanical and chemical properties |
| title | Blended Cement Mixed with Basic Oxygen Steelmaking Slag (BOF) as an Alternative Green Building Material |
| title_full | Blended Cement Mixed with Basic Oxygen Steelmaking Slag (BOF) as an Alternative Green Building Material |
| title_fullStr | Blended Cement Mixed with Basic Oxygen Steelmaking Slag (BOF) as an Alternative Green Building Material |
| title_full_unstemmed | Blended Cement Mixed with Basic Oxygen Steelmaking Slag (BOF) as an Alternative Green Building Material |
| title_short | Blended Cement Mixed with Basic Oxygen Steelmaking Slag (BOF) as an Alternative Green Building Material |
| title_sort | blended cement mixed with basic oxygen steelmaking slag bof as an alternative green building material |
| topic | blended Portland slag cement basic oxygen steelmaking slag (BOF) ordinary Portland cement (OPC) mechanical and chemical properties |
| url | https://www.mdpi.com/1996-1944/13/14/3062 |
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