Development of Eco-Friendly Cement Using a Calcium Sulfoaluminate Expansive Agent Blended with Slag and Silica Fume
This is an experimental study on the development of a low-carbon, eco-friendly cement containing a calcium sulfoaluminate expansive agent (CSAe), slag, and silica fume (SF). The cement to be developed has a low water/binder ratio (<i>w</i>/<i>b</i>) of 0.5 and is designed to...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/1/394 |
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| author | Taewan Kim Ki-Young Seo Choonghyun Kang Tak-Kee Lee |
| author_facet | Taewan Kim Ki-Young Seo Choonghyun Kang Tak-Kee Lee |
| author_sort | Taewan Kim |
| collection | DOAJ |
| description | This is an experimental study on the development of a low-carbon, eco-friendly cement containing a calcium sulfoaluminate expansive agent (CSAe), slag, and silica fume (SF). The cement to be developed has a low water/binder ratio (<i>w</i>/<i>b</i>) of 0.5 and is designed to be used for structural purposes, with focus on its mechanical performance. CSAe, slag, and SF were mixed at various mixing ratios. The main hydration product of the slag-based CSAe cement in the experiment was ettringite. Substituting less than 30% of CSAe showed a sufficient level of mechanical performance; that is, the material could be used as structural cement. SF controlled the excessive expansion of CSAe. However, since the developed slag-CSAe-SF cement has low early age (1 d) strength, follow-up research is needed for improvement. |
| first_indexed | 2024-03-10T13:30:54Z |
| format | Article |
| id | doaj.art-5b87ea187e144f2f98040614f090f317 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T13:30:54Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-5b87ea187e144f2f98040614f090f3172023-11-21T07:59:21ZengMDPI AGApplied Sciences2076-34172021-01-0111139410.3390/app11010394Development of Eco-Friendly Cement Using a Calcium Sulfoaluminate Expansive Agent Blended with Slag and Silica FumeTaewan Kim0Ki-Young Seo1Choonghyun Kang2Tak-Kee Lee3Department of Civil Engineering, Pusan National University, Busan 46241, KoreaHK Engineering and Consultants, Busan 46220, KoreaDepartment of Ocean Civil Engineering, Gyeongsang National University, Tongyeong 53064, KoreaDepartment of Naval Architecture and Ocean Engineering, Gyeongsang National University, Tongyeong 53064, KoreaThis is an experimental study on the development of a low-carbon, eco-friendly cement containing a calcium sulfoaluminate expansive agent (CSAe), slag, and silica fume (SF). The cement to be developed has a low water/binder ratio (<i>w</i>/<i>b</i>) of 0.5 and is designed to be used for structural purposes, with focus on its mechanical performance. CSAe, slag, and SF were mixed at various mixing ratios. The main hydration product of the slag-based CSAe cement in the experiment was ettringite. Substituting less than 30% of CSAe showed a sufficient level of mechanical performance; that is, the material could be used as structural cement. SF controlled the excessive expansion of CSAe. However, since the developed slag-CSAe-SF cement has low early age (1 d) strength, follow-up research is needed for improvement.https://www.mdpi.com/2076-3417/11/1/394calcium sulfoaluminateslagsilica fumeeco-friendly |
| spellingShingle | Taewan Kim Ki-Young Seo Choonghyun Kang Tak-Kee Lee Development of Eco-Friendly Cement Using a Calcium Sulfoaluminate Expansive Agent Blended with Slag and Silica Fume Applied Sciences calcium sulfoaluminate slag silica fume eco-friendly |
| title | Development of Eco-Friendly Cement Using a Calcium Sulfoaluminate Expansive Agent Blended with Slag and Silica Fume |
| title_full | Development of Eco-Friendly Cement Using a Calcium Sulfoaluminate Expansive Agent Blended with Slag and Silica Fume |
| title_fullStr | Development of Eco-Friendly Cement Using a Calcium Sulfoaluminate Expansive Agent Blended with Slag and Silica Fume |
| title_full_unstemmed | Development of Eco-Friendly Cement Using a Calcium Sulfoaluminate Expansive Agent Blended with Slag and Silica Fume |
| title_short | Development of Eco-Friendly Cement Using a Calcium Sulfoaluminate Expansive Agent Blended with Slag and Silica Fume |
| title_sort | development of eco friendly cement using a calcium sulfoaluminate expansive agent blended with slag and silica fume |
| topic | calcium sulfoaluminate slag silica fume eco-friendly |
| url | https://www.mdpi.com/2076-3417/11/1/394 |
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