ログイン
言語:

WEKO3

  • トップ
  • ランキング
To
lat lon distance
To

Field does not validate



インデックスリンク

インデックスツリー

メールアドレスを入力してください。

WEKO

One fine body…

WEKO

One fine body…

アイテム

{"_buckets": {"deposit": "98a610f1-10da-41dc-8432-3ef604f0f9a6"}, "_deposit": {"id": "2007515", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "2007515"}, "status": "published"}, "_oai": {"id": "oai:u-ryukyu.repo.nii.ac.jp:02007515", "sets": ["1642837729050", "1642838406845"]}, "author_link": [], "item_1617186331708": {"attribute_name": "Title", "attribute_value_mlt": [{"subitem_1551255647225": "\u6c96\u7e04\u306e\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u306e\u57fa\u672c\u7684\u6027\u72b6\u30002", "subitem_1551255648112": "ja"}, {"subitem_1551255647225": "Studies on Fundamental Properties of Concrete in Okinawa, 2", "subitem_1551255648112": "en"}]}, "item_1617186419668": {"attribute_name": "Creator", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "\u5177\u5fd7, \u5e78\u660c", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "Gushi, Yukimasa", "creatorNameLang": "en"}]}]}, "item_1617186476635": {"attribute_name": "Access Rights", "attribute_value_mlt": [{"subitem_1522299639480": "open access", "subitem_1600958577026": "http://purl.org/coar/access_right/c_abf2"}]}, "item_1617186626617": {"attribute_name": "Description", "attribute_value_mlt": [{"subitem_description": "Using sea sand and crushed stone is the distinctive feature of concrete in Okinawa Prefecture. The characteristics of such concrete has already published in many papers by the auther and others. There are two kinds of crushed stone used in Okinawa Island. One is hard and called \"Motobu\" crushed stone and has large density and small specific water content. So the static and dynamic Young\u0027s maduli of the concrete which uses Motobu crushed stone are much larger than ones which described in the specifications of AIJ and JSCE in the practical range of compressive strength between 150 and 400kg/cm\u00b2. The other is relatively soft and called Ryukyu lime stone crushed stone. The concrete using the relatively soft crushed stone has smaller Young\u0027s moduli than the concrete with Motobu crushed stone, but still lightly larger than specified values in the AIJ specification. There are many factors which affect the values of the Young\u0027s maduli of concrete. In this study, compressive strength and unit weight of concrete are the most affecting factors. Formulae for both static and dynamic Young\u0027s moduli are presented by using the method of the least square. The formulae are described in terms of compressive strength and unit weight of concrete. The increasing pattern of compressing strength of the concrete using hard crushed stone as the time passes is almost the same as described in common technical books. The rate of increase of Young\u0027s moduli as the time passes is much slower than ones of compressive strength. The concrete using larger maximum size crushed stone exhibits much larger Young\u0027s moduli than the concrete with small maximum size. Bleeding behavior of the concrete using crushed stone and sea sand will be much improved by using \"Ishig\u016b\" as a part of fine aggregate. Bleeding rate or quantity becomes half or one-third, if \"Ishig\u016b\" is used properly with other materials.", "subitem_description_type": "Other"}, {"subitem_description": "\u7d00\u8981\u8ad6\u6587", "subitem_description_type": "Other"}]}, "item_1617186643794": {"attribute_name": "Publisher", "attribute_value_mlt": [{"subitem_1522300295150": "ja", "subitem_1522300316516": "\u7409\u7403\u5927\u5b66\u7406\u5de5\u5b66\u90e8"}, {"subitem_1522300295150": "en", "subitem_1522300316516": "Science and Engineering Division, University of the Ryukyus"}]}, "item_1617186702042": {"attribute_name": "Language", "attribute_value_mlt": [{"subitem_1551255818386": "jpn"}]}, "item_1617186783814": {"attribute_name": "Identifier", "attribute_value_mlt": [{"subitem_identifier_type": "HDL", "subitem_identifier_uri": "http://hdl.handle.net/20.500.12000/27014"}]}, "item_1617186920753": {"attribute_name": "Source Identifier", "attribute_value_mlt": [{"subitem_1522646500366": "ISSN", "subitem_1522646572813": "0387-429X"}, {"subitem_1522646500366": "NCID", "subitem_1522646572813": "AN00250785"}]}, "item_1617186941041": {"attribute_name": "Source Title", "attribute_value_mlt": [{"subitem_1522650068558": "ja", "subitem_1522650091861": "\u7409\u7403\u5927\u5b66\u7406\u5de5\u5b66\u90e8\u7d00\u8981. \u5de5\u5b66\u7bc7"}, {"subitem_1522650068558": "en", "subitem_1522650091861": "Bulletin of Science \u0026 Engineering Division, University of the Ryukyus. Engineering"}]}, "item_1617187056579": {"attribute_name": "Bibliographic Information", "attribute_value_mlt": [{"bibliographicIssueNumber": "15", "bibliographicPageEnd": "12", "bibliographicPageStart": "1"}]}, "item_1617258105262": {"attribute_name": "Resource Type", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_1617265215918": {"attribute_name": "Version Type", "attribute_value_mlt": [{"subitem_1522305645492": "VoR", "subitem_1600292170262": "http://purl.org/coar/version/c_970fb48d4fbd8a85"}]}, "item_1617605131499": {"attribute_name": "File", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_access", "download_preview_message": "", "file_order": 0, "filename": "No15P001.pdf", "future_date_message": "", "is_thumbnail": false, "mimetype": "", "size": 0, "url": {"objectType": "fulltext", "url": "https://u-ryukyu.repo.nii.ac.jp/record/2007515/files/No15P001.pdf"}, "version_id": "e309cee5-b65e-4fb9-ba6c-ecf6f5ca589b"}]}, "item_title": "\u6c96\u7e04\u306e\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u306e\u57fa\u672c\u7684\u6027\u72b6\u30002", "item_type_id": "15", "owner": "1", "path": ["1642837729050", "1642838406845"], "permalink_uri": "http://hdl.handle.net/20.500.12000/27014", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2013-07-24"}, "publish_date": "2013-07-24", "publish_status": "0", "recid": "2007515", "relation": {}, "relation_version_is_last": true, "title": ["\u6c96\u7e04\u306e\u30b3\u30f3\u30af\u30ea\u30fc\u30c8\u306e\u57fa\u672c\u7684\u6027\u72b6\u30002"], "weko_shared_id": -1}
  1. 紀要論文
  2. 琉球大学理工学部紀要 工学編
  3. 15号
  1. 部局別インデックス
  2. 工学部

沖縄のコンクリートの基本的性状 2

http://hdl.handle.net/20.500.12000/27014
http://hdl.handle.net/20.500.12000/27014
a31c0f3c-95ca-45ac-9a37-eafe47666627
名前 / ファイル ライセンス アクション
No15P001.pdf No15P001.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2013-07-24
タイトル
タイトル 沖縄のコンクリートの基本的性状 2
言語 ja
作成者 具志, 幸昌

× 具志, 幸昌

ja 具志, 幸昌

Gushi, Yukimasa

× Gushi, Yukimasa

en Gushi, Yukimasa

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 Using sea sand and crushed stone is the distinctive feature of concrete in Okinawa Prefecture. The characteristics of such concrete has already published in many papers by the auther and others. There are two kinds of crushed stone used in Okinawa Island. One is hard and called "Motobu" crushed stone and has large density and small specific water content. So the static and dynamic Young's maduli of the concrete which uses Motobu crushed stone are much larger than ones which described in the specifications of AIJ and JSCE in the practical range of compressive strength between 150 and 400kg/cm². The other is relatively soft and called Ryukyu lime stone crushed stone. The concrete using the relatively soft crushed stone has smaller Young's moduli than the concrete with Motobu crushed stone, but still lightly larger than specified values in the AIJ specification. There are many factors which affect the values of the Young's maduli of concrete. In this study, compressive strength and unit weight of concrete are the most affecting factors. Formulae for both static and dynamic Young's moduli are presented by using the method of the least square. The formulae are described in terms of compressive strength and unit weight of concrete. The increasing pattern of compressing strength of the concrete using hard crushed stone as the time passes is almost the same as described in common technical books. The rate of increase of Young's moduli as the time passes is much slower than ones of compressive strength. The concrete using larger maximum size crushed stone exhibits much larger Young's moduli than the concrete with small maximum size. Bleeding behavior of the concrete using crushed stone and sea sand will be much improved by using "Ishigū" as a part of fine aggregate. Bleeding rate or quantity becomes half or one-third, if "Ishigū" is used properly with other materials.
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/20.500.12000/27014
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 15, p. 1-12
戻る
0
views
See details
Views

Versions

Ver.1 2022-01-28 04:24:42.661180
Show All versions

Share

Mendeley Twitter Facebook Print Addthis

Cite as

エクスポート

OAI-PMH
  • OAI-PMH JPCOAR
  • OAI-PMH DublinCore
  • OAI-PMH DDI
Other Formats
  • JSON

確認


Powered by WEKO3


Powered by WEKO3