Identification of Chemical Bonds and Microstructure of Hydrated Tricalcium Silicate (C<sub>3</sub>S) by a Coupled Micro-Raman/BSE-EDS Evaluation
Identifying the phase evolution and revealing the chemical bonds of hydrated cements accurately is crucial to regulate the performance of cementitious materials. In this paper, a coupled Raman/BSE-EDS analysis was proposed to determine the chemical bonds of tricalcium silicate hydrates and the inter...
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MDPI AG
2021-09-01
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| Online Access: | https://www.mdpi.com/1996-1944/14/18/5144 |
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| author | Zheyu Zhu Zhongping Wang Yue Zhou Yuting Chen Kai Wu |
| author_facet | Zheyu Zhu Zhongping Wang Yue Zhou Yuting Chen Kai Wu |
| author_sort | Zheyu Zhu |
| collection | DOAJ |
| description | Identifying the phase evolution and revealing the chemical bonds of hydrated cements accurately is crucial to regulate the performance of cementitious materials. In this paper, a coupled Raman/BSE-EDS analysis was proposed to determine the chemical bonds of tricalcium silicate hydrates and the interface transition zone (ITZ) between inner C-S-H and anhydrates. The results show that the Raman/BSE-EDS method can accurately identify the chemical bonds of inner C-S-H and inner ITZ regions, which confirms the mixed structure of inner C-S-H and nano calcium hydroxide (CH). The inner ITZ shows a lattice change region with a thickness of 700–1000 nm, which can be attributed to the pre-disassembly process of C<sub>3</sub>S crystal. The successful application of coupled Raman/BSE-EDS provides new insight into the hydration process and multi-structure features of traditional cementitious materials. |
| first_indexed | 2024-03-10T07:30:07Z |
| format | Article |
| id | doaj.art-90d578e3728f44c0a8b241de2263751f |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T07:30:07Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
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| series | Materials |
| spelling | doaj.art-90d578e3728f44c0a8b241de2263751f2023-11-22T13:59:31ZengMDPI AGMaterials1996-19442021-09-011418514410.3390/ma14185144Identification of Chemical Bonds and Microstructure of Hydrated Tricalcium Silicate (C<sub>3</sub>S) by a Coupled Micro-Raman/BSE-EDS EvaluationZheyu Zhu0Zhongping Wang1Yue Zhou2Yuting Chen3Kai Wu4Key Laboratory of Advanced Civil Engineering Materials, Ministry of Education, Tongji University, Shanghai 201804, ChinaKey Laboratory of Advanced Civil Engineering Materials, Ministry of Education, Tongji University, Shanghai 201804, ChinaKey Laboratory of Advanced Civil Engineering Materials, Ministry of Education, Tongji University, Shanghai 201804, ChinaKey Laboratory of Advanced Civil Engineering Materials, Ministry of Education, Tongji University, Shanghai 201804, ChinaKey Laboratory of Advanced Civil Engineering Materials, Ministry of Education, Tongji University, Shanghai 201804, ChinaIdentifying the phase evolution and revealing the chemical bonds of hydrated cements accurately is crucial to regulate the performance of cementitious materials. In this paper, a coupled Raman/BSE-EDS analysis was proposed to determine the chemical bonds of tricalcium silicate hydrates and the interface transition zone (ITZ) between inner C-S-H and anhydrates. The results show that the Raman/BSE-EDS method can accurately identify the chemical bonds of inner C-S-H and inner ITZ regions, which confirms the mixed structure of inner C-S-H and nano calcium hydroxide (CH). The inner ITZ shows a lattice change region with a thickness of 700–1000 nm, which can be attributed to the pre-disassembly process of C<sub>3</sub>S crystal. The successful application of coupled Raman/BSE-EDS provides new insight into the hydration process and multi-structure features of traditional cementitious materials.https://www.mdpi.com/1996-1944/14/18/5144coupled Raman/BSE-EDS analysischemical bondinginner C-S-Hcalcium hydroxideITZ |
| spellingShingle | Zheyu Zhu Zhongping Wang Yue Zhou Yuting Chen Kai Wu Identification of Chemical Bonds and Microstructure of Hydrated Tricalcium Silicate (C<sub>3</sub>S) by a Coupled Micro-Raman/BSE-EDS Evaluation Materials coupled Raman/BSE-EDS analysis chemical bonding inner C-S-H calcium hydroxide ITZ |
| title | Identification of Chemical Bonds and Microstructure of Hydrated Tricalcium Silicate (C<sub>3</sub>S) by a Coupled Micro-Raman/BSE-EDS Evaluation |
| title_full | Identification of Chemical Bonds and Microstructure of Hydrated Tricalcium Silicate (C<sub>3</sub>S) by a Coupled Micro-Raman/BSE-EDS Evaluation |
| title_fullStr | Identification of Chemical Bonds and Microstructure of Hydrated Tricalcium Silicate (C<sub>3</sub>S) by a Coupled Micro-Raman/BSE-EDS Evaluation |
| title_full_unstemmed | Identification of Chemical Bonds and Microstructure of Hydrated Tricalcium Silicate (C<sub>3</sub>S) by a Coupled Micro-Raman/BSE-EDS Evaluation |
| title_short | Identification of Chemical Bonds and Microstructure of Hydrated Tricalcium Silicate (C<sub>3</sub>S) by a Coupled Micro-Raman/BSE-EDS Evaluation |
| title_sort | identification of chemical bonds and microstructure of hydrated tricalcium silicate c sub 3 sub s by a coupled micro raman bse eds evaluation |
| topic | coupled Raman/BSE-EDS analysis chemical bonding inner C-S-H calcium hydroxide ITZ |
| url | https://www.mdpi.com/1996-1944/14/18/5144 |
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