Si NMR Study of the Hydration of Ca3SiO5 and ß-Ca2SiO4 in the Presence of Silica Fume
Sun, Guokuang ; Brough, Adrian R. ; Young, J. Francis
Westerville, Ohio : American Ceramics Society
Published 1999
Westerville, Ohio : American Ceramics Society
Published 1999
| ISSN: |
1551-2916
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|---|---|
| Source: |
Blackwell Publishing Journal Backfiles 1879-2005
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| Topics: |
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Physics
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| Notes: |
29Si magic-angle spinning nuclear magnetic resonance (MASNMR) was used to study the room-temperature hydration of C3S, ß-C2S, and reactive ß-C2S mixed with different amounts of silica fume (SF) that had been hydrated up to nine months and longer. The overall CaO:SiO2 molar ratios of the mixes were 0.12, 0.20, 0.35, 0.50, and 0.80. NMR spectroscopy was used to quantify the remaining starting materials and the resulting hydration products of different species. A broad peak assigned to Q3, appearing in both the fourier transform (FT) and the cross-polarization (CP) modes, increased in intensity with increased SF content and with age. This Q3 species was attributed to two sources: (1) the surface hydroxylation of SF and (2) the cross-linking of dreierketten (chains of silicate tetrahedra arranged in a repeating three-unit conformation) in the calcium silicate hydrate (C-S-H) structure. A Q4 species also appeared in the CP spectra of samples with large SF additions after extended hydration and was attributed to cross-polarization by adjacent hydroxylated Q3 species at the surface of amorphous SiO2.
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| Type of Medium: |
Electronic Resource
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| URL: |
| _version_ | 1798290065768579074 |
|---|---|
| autor | Sun, Guokuang Brough, Adrian R. Young, J. Francis |
| book_url | http://dx.doi.org/10.1111/j.1151-2916.1999.tb02228.x |
| datenlieferant | nat_lic_papers |
| hauptsatz | hsatz_simple |
| identnr | NLZ243480148 |
| insertion_date | 2012-04-27 |
| issn | 1551-2916 |
| journal_name | Journal of the American Ceramic Society |
| materialart | 1 |
| notes | 29Si magic-angle spinning nuclear magnetic resonance (MASNMR) was used to study the room-temperature hydration of C3S, ß-C2S, and reactive ß-C2S mixed with different amounts of silica fume (SF) that had been hydrated up to nine months and longer. The overall CaO:SiO2 molar ratios of the mixes were 0.12, 0.20, 0.35, 0.50, and 0.80. NMR spectroscopy was used to quantify the remaining starting materials and the resulting hydration products of different species. A broad peak assigned to Q3, appearing in both the fourier transform (FT) and the cross-polarization (CP) modes, increased in intensity with increased SF content and with age. This Q3 species was attributed to two sources: (1) the surface hydroxylation of SF and (2) the cross-linking of dreierketten (chains of silicate tetrahedra arranged in a repeating three-unit conformation) in the calcium silicate hydrate (C-S-H) structure. A Q4 species also appeared in the CP spectra of samples with large SF additions after extended hydration and was attributed to cross-polarization by adjacent hydroxylated Q3 species at the surface of amorphous SiO2. |
| package_name | Blackwell Publishing |
| publikationsjahr_anzeige | 1999 |
| publikationsjahr_facette | 1999 |
| publikationsjahr_intervall | 8004:1995-1999 |
| publikationsjahr_sort | 1999 |
| publikationsort | Westerville, Ohio |
| publisher | American Ceramics Society |
| reference | 82 (1999), S. 0 |
| search_space | articles |
| shingle_author_1 | Sun, Guokuang Brough, Adrian R. Young, J. Francis |
| shingle_author_2 | Sun, Guokuang Brough, Adrian R. Young, J. Francis |
| shingle_author_3 | Sun, Guokuang Brough, Adrian R. Young, J. Francis |
| shingle_author_4 | Sun, Guokuang Brough, Adrian R. Young, J. Francis |
| shingle_catch_all_1 | Sun, Guokuang Brough, Adrian R. Young, J. Francis Si NMR Study of the Hydration of Ca3SiO5 and ß-Ca2SiO4 in the Presence of Silica Fume American Ceramics Society 29Si magic-angle spinning nuclear magnetic resonance (MASNMR) was used to study the room-temperature hydration of C3S, ß-C2S, and reactive ß-C2S mixed with different amounts of silica fume (SF) that had been hydrated up to nine months and longer. The overall CaO:SiO2 molar ratios of the mixes were 0.12, 0.20, 0.35, 0.50, and 0.80. NMR spectroscopy was used to quantify the remaining starting materials and the resulting hydration products of different species. A broad peak assigned to Q3, appearing in both the fourier transform (FT) and the cross-polarization (CP) modes, increased in intensity with increased SF content and with age. This Q3 species was attributed to two sources: (1) the surface hydroxylation of SF and (2) the cross-linking of dreierketten (chains of silicate tetrahedra arranged in a repeating three-unit conformation) in the calcium silicate hydrate (C-S-H) structure. A Q4 species also appeared in the CP spectra of samples with large SF additions after extended hydration and was attributed to cross-polarization by adjacent hydroxylated Q3 species at the surface of amorphous SiO2. 1551-2916 15512916 |
| shingle_catch_all_2 | Sun, Guokuang Brough, Adrian R. Young, J. Francis Si NMR Study of the Hydration of Ca3SiO5 and ß-Ca2SiO4 in the Presence of Silica Fume American Ceramics Society 29Si magic-angle spinning nuclear magnetic resonance (MASNMR) was used to study the room-temperature hydration of C3S, ß-C2S, and reactive ß-C2S mixed with different amounts of silica fume (SF) that had been hydrated up to nine months and longer. The overall CaO:SiO2 molar ratios of the mixes were 0.12, 0.20, 0.35, 0.50, and 0.80. NMR spectroscopy was used to quantify the remaining starting materials and the resulting hydration products of different species. A broad peak assigned to Q3, appearing in both the fourier transform (FT) and the cross-polarization (CP) modes, increased in intensity with increased SF content and with age. This Q3 species was attributed to two sources: (1) the surface hydroxylation of SF and (2) the cross-linking of dreierketten (chains of silicate tetrahedra arranged in a repeating three-unit conformation) in the calcium silicate hydrate (C-S-H) structure. A Q4 species also appeared in the CP spectra of samples with large SF additions after extended hydration and was attributed to cross-polarization by adjacent hydroxylated Q3 species at the surface of amorphous SiO2. 1551-2916 15512916 |
| shingle_catch_all_3 | Sun, Guokuang Brough, Adrian R. Young, J. Francis Si NMR Study of the Hydration of Ca3SiO5 and ß-Ca2SiO4 in the Presence of Silica Fume American Ceramics Society 29Si magic-angle spinning nuclear magnetic resonance (MASNMR) was used to study the room-temperature hydration of C3S, ß-C2S, and reactive ß-C2S mixed with different amounts of silica fume (SF) that had been hydrated up to nine months and longer. The overall CaO:SiO2 molar ratios of the mixes were 0.12, 0.20, 0.35, 0.50, and 0.80. NMR spectroscopy was used to quantify the remaining starting materials and the resulting hydration products of different species. A broad peak assigned to Q3, appearing in both the fourier transform (FT) and the cross-polarization (CP) modes, increased in intensity with increased SF content and with age. This Q3 species was attributed to two sources: (1) the surface hydroxylation of SF and (2) the cross-linking of dreierketten (chains of silicate tetrahedra arranged in a repeating three-unit conformation) in the calcium silicate hydrate (C-S-H) structure. A Q4 species also appeared in the CP spectra of samples with large SF additions after extended hydration and was attributed to cross-polarization by adjacent hydroxylated Q3 species at the surface of amorphous SiO2. 1551-2916 15512916 |
| shingle_catch_all_4 | Sun, Guokuang Brough, Adrian R. Young, J. Francis Si NMR Study of the Hydration of Ca3SiO5 and ß-Ca2SiO4 in the Presence of Silica Fume American Ceramics Society 29Si magic-angle spinning nuclear magnetic resonance (MASNMR) was used to study the room-temperature hydration of C3S, ß-C2S, and reactive ß-C2S mixed with different amounts of silica fume (SF) that had been hydrated up to nine months and longer. The overall CaO:SiO2 molar ratios of the mixes were 0.12, 0.20, 0.35, 0.50, and 0.80. NMR spectroscopy was used to quantify the remaining starting materials and the resulting hydration products of different species. A broad peak assigned to Q3, appearing in both the fourier transform (FT) and the cross-polarization (CP) modes, increased in intensity with increased SF content and with age. This Q3 species was attributed to two sources: (1) the surface hydroxylation of SF and (2) the cross-linking of dreierketten (chains of silicate tetrahedra arranged in a repeating three-unit conformation) in the calcium silicate hydrate (C-S-H) structure. A Q4 species also appeared in the CP spectra of samples with large SF additions after extended hydration and was attributed to cross-polarization by adjacent hydroxylated Q3 species at the surface of amorphous SiO2. 1551-2916 15512916 |
| shingle_title_1 | Si NMR Study of the Hydration of Ca3SiO5 and ß-Ca2SiO4 in the Presence of Silica Fume |
| shingle_title_2 | Si NMR Study of the Hydration of Ca3SiO5 and ß-Ca2SiO4 in the Presence of Silica Fume |
| shingle_title_3 | Si NMR Study of the Hydration of Ca3SiO5 and ß-Ca2SiO4 in the Presence of Silica Fume |
| shingle_title_4 | Si NMR Study of the Hydration of Ca3SiO5 and ß-Ca2SiO4 in the Presence of Silica Fume |
| sigel_instance_filter | dkfz geomar wilbert ipn albert |
| source_archive | Blackwell Publishing Journal Backfiles 1879-2005 |
| timestamp | 2024-05-06T08:10:48.870Z |
| titel | Si NMR Study of the Hydration of Ca3SiO5 and ß-Ca2SiO4 in the Presence of Silica Fume |
| titel_suche | Si NMR Study of the Hydration of Ca3SiO5 and ß-Ca2SiO4 in the Presence of Silica Fume |
| topic | ZL U |
| uid | nat_lic_papers_NLZ243480148 |