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  1. 紀要論文
  2. 琉球大学理工学部紀要 工学編
  3. 13号
  1. 部局別インデックス
  2. 工学部

沖縄本島北部3村の鉄筋コンクリート造校舎の耐久性

http://hdl.handle.net/20.500.12000/26994
http://hdl.handle.net/20.500.12000/26994
40e4d249-34f4-4ede-920c-71d478509b0c
名前 / ファイル ライセンス アクション
No13P087.pdf No13P087.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2013-09-30
タイトル
タイトル 沖縄本島北部3村の鉄筋コンクリート造校舎の耐久性
言語 ja
作成者 具志, 幸昌

× 具志, 幸昌

ja 具志, 幸昌

和仁屋, 晴讙

× 和仁屋, 晴讙

ja 和仁屋, 晴讙

伊良波, 繁雄

× 伊良波, 繁雄

ja 伊良波, 繁雄

Gushi, Yukimasa

× Gushi, Yukimasa

en Gushi, Yukimasa

Waniya, Haruyoshi

× Waniya, Haruyoshi

en Waniya, Haruyoshi

Iraha, Shigeo

× Iraha, Shigeo

en Iraha, Shigeo

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
内容記述
内容記述タイプ Other
内容記述 This paper describes the results of site investigation on durability and deterioration of school houses in three villages of northern part of Okinawa Island. The school houses in this region have been damaged most seriously in this series of investigations in Okinawa Prefecture. The rate of the damaged school houses in columns and girders to all school houses in this region amounts to as much as 37.1%. The rate of the damaged school houses in slabs and laves is 84.6%. The most prominent cause for above high damage rate is salt contained in concrete of school houses. The largest salt content value is observed at an school house in this region. The value is 1.91%. The average salt content value in this region is 0.52%. The salt contained in concrete comes from sea sand, sea gravels and mixing water, as well as directly from sea water. The first step to decrease the rate of damaged school houses is preventing school houses concrete from salt permeation. Houses of 4 schools in this region are directly attacked by sea water sprays, and the houses are most severly damaged. Other than above, the following comment to be mentioned: 1. The two kinds of coarse aggregate are used in construction of school houses in this region, one is natural gravels in older school houses and the other is crushed hard lime stone in newer school houses. 2. Heavily damaged school house concrete contained the natural gravels. 3. The hand-rails of stairs are damaged as seriously as the ones in other regions of Okinawa Prefecfure, and after 1965 the damages in the hand-rails decreased suddenly on account of the change in mode of stairs. 4. The quality of concrete in this region, estimating from the observed values of specific weight and absorption capacity of concrete, is highest one. But this does not means that concretes in this region is durable. 5. The school houses sprayed by sea water must be moved. 6. There are three critical school houses, not to be used and must be removed.
内容記述タイプ Other
内容記述 紀要論文
出版者
言語 ja
出版者 琉球大学理工学部
言語
言語 jpn
資源タイプ
資源タイプ departmental bulletin paper
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
識別子
識別子 http://hdl.handle.net/20.500.12000/26994
識別子タイプ HDL
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0387-429X
収録物識別子タイプ NCID
収録物識別子 AN00250785
収録物名
言語 ja
収録物名 琉球大学理工学部紀要. 工学篇
書誌情報
号 13, p. 87-145
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