Soft X-ray Spectromicroscopic Investigation of Synthetic C-S-H and C3S Hydration Products
DC Field | Value | Language |
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dc.contributor.author | Bae, Sung Chul | - |
dc.contributor.author | Taylor, Rae | - |
dc.contributor.author | Hernandez-Cruz, Daniel | - |
dc.contributor.author | Yoon, Seyoon | - |
dc.contributor.author | Kilcoyne, David | - |
dc.contributor.author | Monteiro, Paulo J. M. | - |
dc.date.accessioned | 2022-07-15T20:57:48Z | - |
dc.date.available | 2022-07-15T20:57:48Z | - |
dc.date.created | 2021-05-14 | - |
dc.date.issued | 2015-09 | - |
dc.identifier.issn | 0002-7820 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/156317 | - |
dc.description.abstract | Calcium silicate hydrates (C-S-H), the primary binding phase in concrete, is the most prominent physiochemical factor controlling the mechanical and chemical properties in the production of concrete. This paper reports the local-binding structure and morphological details of C-S-H as determined by high-resolution X-ray spectromicroscopy. Hydrated tricalcium silicate (C3S) was used to determine the properties and role of the outer products (Op) of C3S. C-S-H with different molar ratios of Ca/Si, were synthesized (Syn-CSH) to quantitatively evaluate the effect of silicate polymerization on Ca L and Si K edge of C-S-H. Near edge X-ray absorption fine structure (NEXAFS) spectroscopy of Syn-CSH showed no variation in peak positions and energy separation for CaLIII, II edge for the Ca/Si ratios investigated. Compared to Syn-CSH, C3S, when hydrated for 17d, had a similar local structure around Ca. Si K edge NEXAFS analysis on Syn-CSH showed a tendency for the peak positions of both the Si K edge and the peak induced by multiple scattering to shift to higher energy levels. The results also indicated that the distance between the two peaks increased with a decrease of the Ca/Si ratio in Syn-CSH. Silicate polymerization influenced the multiple scattering of distant shell atoms more than the binding energy of the core atoms. Op of C3S had a uniform and higher degree of silicate polymerization compared to the core area. The results imply that Op reduces the hydration process of C3S into the core area thereby playing a key role on the properties of concrete upon formation. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | WILEY | - |
dc.title | Soft X-ray Spectromicroscopic Investigation of Synthetic C-S-H and C3S Hydration Products | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Bae, Sung Chul | - |
dc.identifier.doi | 10.1111/jace.13709 | - |
dc.identifier.scopusid | 2-s2.0-84942988796 | - |
dc.identifier.wosid | 000362229400042 | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE AMERICAN CERAMIC SOCIETY, v.98, no.9, pp.2914 - 2920 | - |
dc.relation.isPartOf | JOURNAL OF THE AMERICAN CERAMIC SOCIETY | - |
dc.citation.title | JOURNAL OF THE AMERICAN CERAMIC SOCIETY | - |
dc.citation.volume | 98 | - |
dc.citation.number | 9 | - |
dc.citation.startPage | 2914 | - |
dc.citation.endPage | 2920 | - |
dc.type.rims | ART | - |
dc.type.docType | 정기학술지(Article(Perspective Article포함)) | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Ceramics | - |
dc.subject.keywordPlus | CALCIUM-SILICATE-HYDRATE | - |
dc.subject.keywordPlus | HARDENED CEMENT PASTES | - |
dc.subject.keywordPlus | TRICALCIUM SILICATE | - |
dc.subject.keywordPlus | PORTLAND-CEMENT | - |
dc.subject.keywordPlus | EDGE XANES | - |
dc.subject.keywordPlus | SPECTROSCOPY | - |
dc.subject.keywordPlus | ABSORPTION | - |
dc.subject.keywordPlus | MICROSTRUCTURE | - |
dc.subject.keywordPlus | MICROSCOPY | - |
dc.subject.keywordPlus | MODEL | - |
dc.identifier.url | https://ceramics.onlinelibrary.wiley.com/doi/10.1111/jace.13709 | - |
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