Comparative study on the thermal behavior of structural concretes of sodium-cooled fast reactor
Abstract Thermal behaviors of two different siliceous concretes used in a sodium-cooled fast reactor were comparatively investigated in a temperature range from room temperature to 1900 K for obtaining fundamental information required for establishing a plant simulation system for safety assessment...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Kikuchi, Shin [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2019 |
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| Schlagwörter: |
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| Anmerkung: |
© Akadémiai Kiadó, Budapest, Hungary 2019 |
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| Übergeordnetes Werk: |
Enthalten in: Journal of thermal analysis and calorimetry - Springer International Publishing, 1998, 137(2019), 4 vom: 09. Feb., Seite 1211-1224 |
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| Übergeordnetes Werk: |
volume:137 ; year:2019 ; number:4 ; day:09 ; month:02 ; pages:1211-1224 |
| Links: |
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| DOI / URN: |
10.1007/s10973-019-08045-7 |
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OLC2049873417 |
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| 520 | |a Abstract Thermal behaviors of two different siliceous concretes used in a sodium-cooled fast reactor were comparatively investigated in a temperature range from room temperature to 1900 K for obtaining fundamental information required for establishing a plant simulation system for safety assessment under a postulated accidental condition. Silica crystals and Portland cement were identified as the major component of the aggregate and cement portions of the concrete samples, respectively. The thermal decomposition of the cement portion exhibited partially overlapping multistep reaction comprising the thermal dehydration, thermal decomposition processes of Ca(OH)2 and carbonate compounds including $ CaCO_{3} $. TG–DTG curves recorded for the multistep thermal decomposition process of the cement portion were analyzed using the kinetic deconvolution analysis, and the contributions and kinetic parameters of each reaction step were determined. The kinetics of comparable reaction steps between two samples were practically identical, while the difference between the samples was found in the content ratio of Ca(OH)2/$ CaCO_{3} $. The melting behavior of the siliceous concretes was revealed by the complementary interpretation of TG–DTA curves and the morphological observation of the sample heated to different temperatures. The softening and melting behaviors of the siliceous concretes initially occurred in the thermal decomposition product of the cement portion at a temperature range of 1400–1600 K. The subsequent melting behavior of the aggregate portion that occurs at a higher temperature was different between the samples, owing to the different compositions of the aggregates and the possible interaction of the aggregate with the molten cement portion. | ||
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| 700 | 1 | |a Yamazaki, Atsushi |4 aut | |
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10.1007/s10973-019-08045-7 doi (DE-627)OLC2049873417 (DE-He213)s10973-019-08045-7-p DE-627 ger DE-627 rakwb eng 660 VZ Kikuchi, Shin verfasserin (orcid)0000-0002-5936-5130 aut Comparative study on the thermal behavior of structural concretes of sodium-cooled fast reactor 2019 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Akadémiai Kiadó, Budapest, Hungary 2019 Abstract Thermal behaviors of two different siliceous concretes used in a sodium-cooled fast reactor were comparatively investigated in a temperature range from room temperature to 1900 K for obtaining fundamental information required for establishing a plant simulation system for safety assessment under a postulated accidental condition. Silica crystals and Portland cement were identified as the major component of the aggregate and cement portions of the concrete samples, respectively. The thermal decomposition of the cement portion exhibited partially overlapping multistep reaction comprising the thermal dehydration, thermal decomposition processes of Ca(OH)2 and carbonate compounds including $ CaCO_{3} $. TG–DTG curves recorded for the multistep thermal decomposition process of the cement portion were analyzed using the kinetic deconvolution analysis, and the contributions and kinetic parameters of each reaction step were determined. The kinetics of comparable reaction steps between two samples were practically identical, while the difference between the samples was found in the content ratio of Ca(OH)2/$ CaCO_{3} $. The melting behavior of the siliceous concretes was revealed by the complementary interpretation of TG–DTA curves and the morphological observation of the sample heated to different temperatures. The softening and melting behaviors of the siliceous concretes initially occurred in the thermal decomposition product of the cement portion at a temperature range of 1400–1600 K. The subsequent melting behavior of the aggregate portion that occurs at a higher temperature was different between the samples, owing to the different compositions of the aggregates and the possible interaction of the aggregate with the molten cement portion. Siliceous concrete Thermal behavior Thermal analysis Thermal decomposition Melting Koga, Nobuyoshi (orcid)0000-0002-1839-8163 aut Yamazaki, Atsushi aut Enthalten in Journal of thermal analysis and calorimetry Springer International Publishing, 1998 137(2019), 4 vom: 09. Feb., Seite 1211-1224 (DE-627)244148767 (DE-600)1429493-X (DE-576)066397693 1388-6150 nnns volume:137 year:2019 number:4 day:09 month:02 pages:1211-1224 https://doi.org/10.1007/s10973-019-08045-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE GBV_ILN_70 AR 137 2019 4 09 02 1211-1224 |
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10.1007/s10973-019-08045-7 doi (DE-627)OLC2049873417 (DE-He213)s10973-019-08045-7-p DE-627 ger DE-627 rakwb eng 660 VZ Kikuchi, Shin verfasserin (orcid)0000-0002-5936-5130 aut Comparative study on the thermal behavior of structural concretes of sodium-cooled fast reactor 2019 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Akadémiai Kiadó, Budapest, Hungary 2019 Abstract Thermal behaviors of two different siliceous concretes used in a sodium-cooled fast reactor were comparatively investigated in a temperature range from room temperature to 1900 K for obtaining fundamental information required for establishing a plant simulation system for safety assessment under a postulated accidental condition. Silica crystals and Portland cement were identified as the major component of the aggregate and cement portions of the concrete samples, respectively. The thermal decomposition of the cement portion exhibited partially overlapping multistep reaction comprising the thermal dehydration, thermal decomposition processes of Ca(OH)2 and carbonate compounds including $ CaCO_{3} $. TG–DTG curves recorded for the multistep thermal decomposition process of the cement portion were analyzed using the kinetic deconvolution analysis, and the contributions and kinetic parameters of each reaction step were determined. The kinetics of comparable reaction steps between two samples were practically identical, while the difference between the samples was found in the content ratio of Ca(OH)2/$ CaCO_{3} $. The melting behavior of the siliceous concretes was revealed by the complementary interpretation of TG–DTA curves and the morphological observation of the sample heated to different temperatures. The softening and melting behaviors of the siliceous concretes initially occurred in the thermal decomposition product of the cement portion at a temperature range of 1400–1600 K. The subsequent melting behavior of the aggregate portion that occurs at a higher temperature was different between the samples, owing to the different compositions of the aggregates and the possible interaction of the aggregate with the molten cement portion. Siliceous concrete Thermal behavior Thermal analysis Thermal decomposition Melting Koga, Nobuyoshi (orcid)0000-0002-1839-8163 aut Yamazaki, Atsushi aut Enthalten in Journal of thermal analysis and calorimetry Springer International Publishing, 1998 137(2019), 4 vom: 09. Feb., Seite 1211-1224 (DE-627)244148767 (DE-600)1429493-X (DE-576)066397693 1388-6150 nnns volume:137 year:2019 number:4 day:09 month:02 pages:1211-1224 https://doi.org/10.1007/s10973-019-08045-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE GBV_ILN_70 AR 137 2019 4 09 02 1211-1224 |
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10.1007/s10973-019-08045-7 doi (DE-627)OLC2049873417 (DE-He213)s10973-019-08045-7-p DE-627 ger DE-627 rakwb eng 660 VZ Kikuchi, Shin verfasserin (orcid)0000-0002-5936-5130 aut Comparative study on the thermal behavior of structural concretes of sodium-cooled fast reactor 2019 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Akadémiai Kiadó, Budapest, Hungary 2019 Abstract Thermal behaviors of two different siliceous concretes used in a sodium-cooled fast reactor were comparatively investigated in a temperature range from room temperature to 1900 K for obtaining fundamental information required for establishing a plant simulation system for safety assessment under a postulated accidental condition. Silica crystals and Portland cement were identified as the major component of the aggregate and cement portions of the concrete samples, respectively. The thermal decomposition of the cement portion exhibited partially overlapping multistep reaction comprising the thermal dehydration, thermal decomposition processes of Ca(OH)2 and carbonate compounds including $ CaCO_{3} $. TG–DTG curves recorded for the multistep thermal decomposition process of the cement portion were analyzed using the kinetic deconvolution analysis, and the contributions and kinetic parameters of each reaction step were determined. The kinetics of comparable reaction steps between two samples were practically identical, while the difference between the samples was found in the content ratio of Ca(OH)2/$ CaCO_{3} $. The melting behavior of the siliceous concretes was revealed by the complementary interpretation of TG–DTA curves and the morphological observation of the sample heated to different temperatures. The softening and melting behaviors of the siliceous concretes initially occurred in the thermal decomposition product of the cement portion at a temperature range of 1400–1600 K. The subsequent melting behavior of the aggregate portion that occurs at a higher temperature was different between the samples, owing to the different compositions of the aggregates and the possible interaction of the aggregate with the molten cement portion. Siliceous concrete Thermal behavior Thermal analysis Thermal decomposition Melting Koga, Nobuyoshi (orcid)0000-0002-1839-8163 aut Yamazaki, Atsushi aut Enthalten in Journal of thermal analysis and calorimetry Springer International Publishing, 1998 137(2019), 4 vom: 09. Feb., Seite 1211-1224 (DE-627)244148767 (DE-600)1429493-X (DE-576)066397693 1388-6150 nnns volume:137 year:2019 number:4 day:09 month:02 pages:1211-1224 https://doi.org/10.1007/s10973-019-08045-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE GBV_ILN_70 AR 137 2019 4 09 02 1211-1224 |
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10.1007/s10973-019-08045-7 doi (DE-627)OLC2049873417 (DE-He213)s10973-019-08045-7-p DE-627 ger DE-627 rakwb eng 660 VZ Kikuchi, Shin verfasserin (orcid)0000-0002-5936-5130 aut Comparative study on the thermal behavior of structural concretes of sodium-cooled fast reactor 2019 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Akadémiai Kiadó, Budapest, Hungary 2019 Abstract Thermal behaviors of two different siliceous concretes used in a sodium-cooled fast reactor were comparatively investigated in a temperature range from room temperature to 1900 K for obtaining fundamental information required for establishing a plant simulation system for safety assessment under a postulated accidental condition. Silica crystals and Portland cement were identified as the major component of the aggregate and cement portions of the concrete samples, respectively. The thermal decomposition of the cement portion exhibited partially overlapping multistep reaction comprising the thermal dehydration, thermal decomposition processes of Ca(OH)2 and carbonate compounds including $ CaCO_{3} $. TG–DTG curves recorded for the multistep thermal decomposition process of the cement portion were analyzed using the kinetic deconvolution analysis, and the contributions and kinetic parameters of each reaction step were determined. The kinetics of comparable reaction steps between two samples were practically identical, while the difference between the samples was found in the content ratio of Ca(OH)2/$ CaCO_{3} $. The melting behavior of the siliceous concretes was revealed by the complementary interpretation of TG–DTA curves and the morphological observation of the sample heated to different temperatures. The softening and melting behaviors of the siliceous concretes initially occurred in the thermal decomposition product of the cement portion at a temperature range of 1400–1600 K. The subsequent melting behavior of the aggregate portion that occurs at a higher temperature was different between the samples, owing to the different compositions of the aggregates and the possible interaction of the aggregate with the molten cement portion. Siliceous concrete Thermal behavior Thermal analysis Thermal decomposition Melting Koga, Nobuyoshi (orcid)0000-0002-1839-8163 aut Yamazaki, Atsushi aut Enthalten in Journal of thermal analysis and calorimetry Springer International Publishing, 1998 137(2019), 4 vom: 09. Feb., Seite 1211-1224 (DE-627)244148767 (DE-600)1429493-X (DE-576)066397693 1388-6150 nnns volume:137 year:2019 number:4 day:09 month:02 pages:1211-1224 https://doi.org/10.1007/s10973-019-08045-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE GBV_ILN_70 AR 137 2019 4 09 02 1211-1224 |
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10.1007/s10973-019-08045-7 doi (DE-627)OLC2049873417 (DE-He213)s10973-019-08045-7-p DE-627 ger DE-627 rakwb eng 660 VZ Kikuchi, Shin verfasserin (orcid)0000-0002-5936-5130 aut Comparative study on the thermal behavior of structural concretes of sodium-cooled fast reactor 2019 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Akadémiai Kiadó, Budapest, Hungary 2019 Abstract Thermal behaviors of two different siliceous concretes used in a sodium-cooled fast reactor were comparatively investigated in a temperature range from room temperature to 1900 K for obtaining fundamental information required for establishing a plant simulation system for safety assessment under a postulated accidental condition. Silica crystals and Portland cement were identified as the major component of the aggregate and cement portions of the concrete samples, respectively. The thermal decomposition of the cement portion exhibited partially overlapping multistep reaction comprising the thermal dehydration, thermal decomposition processes of Ca(OH)2 and carbonate compounds including $ CaCO_{3} $. TG–DTG curves recorded for the multistep thermal decomposition process of the cement portion were analyzed using the kinetic deconvolution analysis, and the contributions and kinetic parameters of each reaction step were determined. The kinetics of comparable reaction steps between two samples were practically identical, while the difference between the samples was found in the content ratio of Ca(OH)2/$ CaCO_{3} $. The melting behavior of the siliceous concretes was revealed by the complementary interpretation of TG–DTA curves and the morphological observation of the sample heated to different temperatures. The softening and melting behaviors of the siliceous concretes initially occurred in the thermal decomposition product of the cement portion at a temperature range of 1400–1600 K. The subsequent melting behavior of the aggregate portion that occurs at a higher temperature was different between the samples, owing to the different compositions of the aggregates and the possible interaction of the aggregate with the molten cement portion. Siliceous concrete Thermal behavior Thermal analysis Thermal decomposition Melting Koga, Nobuyoshi (orcid)0000-0002-1839-8163 aut Yamazaki, Atsushi aut Enthalten in Journal of thermal analysis and calorimetry Springer International Publishing, 1998 137(2019), 4 vom: 09. Feb., Seite 1211-1224 (DE-627)244148767 (DE-600)1429493-X (DE-576)066397693 1388-6150 nnns volume:137 year:2019 number:4 day:09 month:02 pages:1211-1224 https://doi.org/10.1007/s10973-019-08045-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE GBV_ILN_70 AR 137 2019 4 09 02 1211-1224 |
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2019 |
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Kikuchi, Shin Koga, Nobuyoshi Yamazaki, Atsushi |
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Kikuchi, Shin |
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10.1007/s10973-019-08045-7 |
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comparative study on the thermal behavior of structural concretes of sodium-cooled fast reactor |
| title_auth |
Comparative study on the thermal behavior of structural concretes of sodium-cooled fast reactor |
| abstract |
Abstract Thermal behaviors of two different siliceous concretes used in a sodium-cooled fast reactor were comparatively investigated in a temperature range from room temperature to 1900 K for obtaining fundamental information required for establishing a plant simulation system for safety assessment under a postulated accidental condition. Silica crystals and Portland cement were identified as the major component of the aggregate and cement portions of the concrete samples, respectively. The thermal decomposition of the cement portion exhibited partially overlapping multistep reaction comprising the thermal dehydration, thermal decomposition processes of Ca(OH)2 and carbonate compounds including $ CaCO_{3} $. TG–DTG curves recorded for the multistep thermal decomposition process of the cement portion were analyzed using the kinetic deconvolution analysis, and the contributions and kinetic parameters of each reaction step were determined. The kinetics of comparable reaction steps between two samples were practically identical, while the difference between the samples was found in the content ratio of Ca(OH)2/$ CaCO_{3} $. The melting behavior of the siliceous concretes was revealed by the complementary interpretation of TG–DTA curves and the morphological observation of the sample heated to different temperatures. The softening and melting behaviors of the siliceous concretes initially occurred in the thermal decomposition product of the cement portion at a temperature range of 1400–1600 K. The subsequent melting behavior of the aggregate portion that occurs at a higher temperature was different between the samples, owing to the different compositions of the aggregates and the possible interaction of the aggregate with the molten cement portion. © Akadémiai Kiadó, Budapest, Hungary 2019 |
| abstractGer |
Abstract Thermal behaviors of two different siliceous concretes used in a sodium-cooled fast reactor were comparatively investigated in a temperature range from room temperature to 1900 K for obtaining fundamental information required for establishing a plant simulation system for safety assessment under a postulated accidental condition. Silica crystals and Portland cement were identified as the major component of the aggregate and cement portions of the concrete samples, respectively. The thermal decomposition of the cement portion exhibited partially overlapping multistep reaction comprising the thermal dehydration, thermal decomposition processes of Ca(OH)2 and carbonate compounds including $ CaCO_{3} $. TG–DTG curves recorded for the multistep thermal decomposition process of the cement portion were analyzed using the kinetic deconvolution analysis, and the contributions and kinetic parameters of each reaction step were determined. The kinetics of comparable reaction steps between two samples were practically identical, while the difference between the samples was found in the content ratio of Ca(OH)2/$ CaCO_{3} $. The melting behavior of the siliceous concretes was revealed by the complementary interpretation of TG–DTA curves and the morphological observation of the sample heated to different temperatures. The softening and melting behaviors of the siliceous concretes initially occurred in the thermal decomposition product of the cement portion at a temperature range of 1400–1600 K. The subsequent melting behavior of the aggregate portion that occurs at a higher temperature was different between the samples, owing to the different compositions of the aggregates and the possible interaction of the aggregate with the molten cement portion. © Akadémiai Kiadó, Budapest, Hungary 2019 |
| abstract_unstemmed |
Abstract Thermal behaviors of two different siliceous concretes used in a sodium-cooled fast reactor were comparatively investigated in a temperature range from room temperature to 1900 K for obtaining fundamental information required for establishing a plant simulation system for safety assessment under a postulated accidental condition. Silica crystals and Portland cement were identified as the major component of the aggregate and cement portions of the concrete samples, respectively. The thermal decomposition of the cement portion exhibited partially overlapping multistep reaction comprising the thermal dehydration, thermal decomposition processes of Ca(OH)2 and carbonate compounds including $ CaCO_{3} $. TG–DTG curves recorded for the multistep thermal decomposition process of the cement portion were analyzed using the kinetic deconvolution analysis, and the contributions and kinetic parameters of each reaction step were determined. The kinetics of comparable reaction steps between two samples were practically identical, while the difference between the samples was found in the content ratio of Ca(OH)2/$ CaCO_{3} $. The melting behavior of the siliceous concretes was revealed by the complementary interpretation of TG–DTA curves and the morphological observation of the sample heated to different temperatures. The softening and melting behaviors of the siliceous concretes initially occurred in the thermal decomposition product of the cement portion at a temperature range of 1400–1600 K. The subsequent melting behavior of the aggregate portion that occurs at a higher temperature was different between the samples, owing to the different compositions of the aggregates and the possible interaction of the aggregate with the molten cement portion. © Akadémiai Kiadó, Budapest, Hungary 2019 |
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Comparative study on the thermal behavior of structural concretes of sodium-cooled fast reactor |
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https://doi.org/10.1007/s10973-019-08045-7 |
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Koga, Nobuyoshi Yamazaki, Atsushi |
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