Investigation of the concrete foundation of the old living hut built in 1969 at Syowa Station, Antarctic
Concrete specimens taken from the pier of the concrete foundation of the old living hut built in 1969 at Syowa Station, Antarctica, were brought back to Japan for investigation of deterioration conditions. This concrete was made by mixing alumina cement brought from Japan with gravel, sand, and wate...
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National Institute of Polar Research
2002
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Online Access: | https://doi.org/10.15094/00009247 https://doaj.org/article/0ad45081a1d74de79da81c3384aba3f7 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:0ad45081a1d74de79da81c3384aba3f7 2023-05-15T14:03:53+02:00 Investigation of the concrete foundation of the old living hut built in 1969 at Syowa Station, Antarctic Takayuki Hirai Masaaki Naito Yoshinori Ohi Toshihiro Otani Kaoru Kurono 2002-09-01 https://doi.org/10.15094/00009247 https://doaj.org/article/0ad45081a1d74de79da81c3384aba3f7 en other eng National Institute of Polar Research doi:10.15094/00009247 0085-7289 2432-079X https://doaj.org/article/0ad45081a1d74de79da81c3384aba3f7 undefined Antarctic Record, Vol 46, Iss 2A, Pp 525-532 (2002) geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2002 fttriple https://doi.org/10.15094/00009247 2023-01-22T17:53:16Z Concrete specimens taken from the pier of the concrete foundation of the old living hut built in 1969 at Syowa Station, Antarctica, were brought back to Japan for investigation of deterioration conditions. This concrete was made by mixing alumina cement brought from Japan with gravel, sand, and water removed from melted snow, all taken from the surface ground of East Ongul Island on which Syowa Station is located, and by placing and shaping it into permanent form. The pier concrete is examined by composition analysis, compressive strength test and neutralization depth measurement of the cored sample. Transformation of the hydration products of alumina cement, from CAH10 to C3AH6 and AH3, was found to be completed. The maximum neutralization depth was found to be 26 mm. In addition, the compressive strength decreased by 22% from the time of construction as judged from a specimen at construction time. Based on these observations, deterioration of the concrete is in progress, but not to the extent that either its strength or durability is a problem with regard to serviceability. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Ongul Island Ongul Island Unknown Antarctic East Ongul Island ENVELOPE(39.583,39.583,-69.017,-69.017) Ongul ENVELOPE(39.533,39.533,-69.017,-69.017) Ongul Island ENVELOPE(39.533,39.533,-69.017,-69.017) Syowa Station |
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Open Polar |
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fttriple |
language |
English |
topic |
geo |
spellingShingle |
geo Takayuki Hirai Masaaki Naito Yoshinori Ohi Toshihiro Otani Kaoru Kurono Investigation of the concrete foundation of the old living hut built in 1969 at Syowa Station, Antarctic |
topic_facet |
geo |
description |
Concrete specimens taken from the pier of the concrete foundation of the old living hut built in 1969 at Syowa Station, Antarctica, were brought back to Japan for investigation of deterioration conditions. This concrete was made by mixing alumina cement brought from Japan with gravel, sand, and water removed from melted snow, all taken from the surface ground of East Ongul Island on which Syowa Station is located, and by placing and shaping it into permanent form. The pier concrete is examined by composition analysis, compressive strength test and neutralization depth measurement of the cored sample. Transformation of the hydration products of alumina cement, from CAH10 to C3AH6 and AH3, was found to be completed. The maximum neutralization depth was found to be 26 mm. In addition, the compressive strength decreased by 22% from the time of construction as judged from a specimen at construction time. Based on these observations, deterioration of the concrete is in progress, but not to the extent that either its strength or durability is a problem with regard to serviceability. |
format |
Article in Journal/Newspaper |
author |
Takayuki Hirai Masaaki Naito Yoshinori Ohi Toshihiro Otani Kaoru Kurono |
author_facet |
Takayuki Hirai Masaaki Naito Yoshinori Ohi Toshihiro Otani Kaoru Kurono |
author_sort |
Takayuki Hirai |
title |
Investigation of the concrete foundation of the old living hut built in 1969 at Syowa Station, Antarctic |
title_short |
Investigation of the concrete foundation of the old living hut built in 1969 at Syowa Station, Antarctic |
title_full |
Investigation of the concrete foundation of the old living hut built in 1969 at Syowa Station, Antarctic |
title_fullStr |
Investigation of the concrete foundation of the old living hut built in 1969 at Syowa Station, Antarctic |
title_full_unstemmed |
Investigation of the concrete foundation of the old living hut built in 1969 at Syowa Station, Antarctic |
title_sort |
investigation of the concrete foundation of the old living hut built in 1969 at syowa station, antarctic |
publisher |
National Institute of Polar Research |
publishDate |
2002 |
url |
https://doi.org/10.15094/00009247 https://doaj.org/article/0ad45081a1d74de79da81c3384aba3f7 |
long_lat |
ENVELOPE(39.583,39.583,-69.017,-69.017) ENVELOPE(39.533,39.533,-69.017,-69.017) ENVELOPE(39.533,39.533,-69.017,-69.017) |
geographic |
Antarctic East Ongul Island Ongul Ongul Island Syowa Station |
geographic_facet |
Antarctic East Ongul Island Ongul Ongul Island Syowa Station |
genre |
Antarc* Antarctic Antarctica East Ongul Island Ongul Island |
genre_facet |
Antarc* Antarctic Antarctica East Ongul Island Ongul Island |
op_source |
Antarctic Record, Vol 46, Iss 2A, Pp 525-532 (2002) |
op_relation |
doi:10.15094/00009247 0085-7289 2432-079X https://doaj.org/article/0ad45081a1d74de79da81c3384aba3f7 |
op_rights |
undefined |
op_doi |
https://doi.org/10.15094/00009247 |
_version_ |
1766274746882719744 |