{"created":"2023-06-19T10:27:02.033337+00:00","id":5832,"links":{},"metadata":{"_buckets":{"deposit":"bb977015-780b-4173-b37f-e7d0bad882ec"},"_deposit":{"created_by":18,"id":"5832","owners":[18],"pid":{"revision_id":0,"type":"depid","value":"5832"},"status":"published"},"_oai":{"id":"oai:muroran-it.repo.nii.ac.jp:00005832","sets":["216:269","46"]},"author_link":["45388","45504","10963","45390"],"item_79_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2000-07","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"792","bibliographicPageStart":"787","bibliographicVolumeNumber":"22","bibliographic_titles":[{"bibliographic_title":"コンクリート工学年次論文集","bibliographic_titleLang":"ja"}]}]},"item_79_description_23":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_79_description_7":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"石灰岩粗骨材を用いたコンクリートは、耐凍害性がやや低下するとの報告があり、ここでは石灰岩の特徴である線膨張係数の小ささと石粉の多さが耐凍害性に及ぼす影響を検討した。石粉の影響では、石粉はその成分によらず、耐凍害性を向上させる効果と空気量を低下させる効果をあわせもっているといえる。さらに、石灰岩粗骨材とモルタルの線膨張係数との差によって生ずる微視的温度応力を検討し、これはコンクリートの耐凍害性を低下させる原因のひとつと考えられたが、この大きさだけでは耐凍害性を説明できず、これによって発生するひびわれの量が影響することが考えられた。","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_79_link_5":{"attribute_name":"室蘭工業大学研究者データベースへのリンク","attribute_value_mlt":[{"subitem_link_text":"濱 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