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微生物腐食を受けたコンクリートの鉱物学的研究: (1)ジャロサイトの存在とその生成機構
https://doi.org/10.24517/00061651
https://doi.org/10.24517/00061651f3537982-8977-4be6-879c-526f4c4afe0f
名前 / ファイル | ライセンス | アクション |
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SC-PR-TAZAKI-K-91.pdf (13.4 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-07-19 | |||||
タイトル | ||||||
タイトル | 微生物腐食を受けたコンクリートの鉱物学的研究: (1)ジャロサイトの存在とその生成機構 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Mineralogical Investigation of Microbially Corroded Concrete: Formation of Jarosite on Corroded Portland Cement | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
ID登録 | ||||||
ID登録 | 10.24517/00061651 | |||||
ID登録タイプ | JaLC | |||||
著者 |
田崎, 和江
× 田崎, 和江× 森, 忠洋× 野中, 資博× 野田, 修司 |
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著者別表示 |
Tazaki, Kazue
× Tazaki, Kazue× Mori, Tadahiro× Nonaka, Tsuguhiro× Noda, Shuji |
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提供者所属 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 金沢大学理工研究域地球社会基盤学系 | |||||
書誌情報 |
粘土科学 en : Journal of the Clay Science Society of Japan 巻 30, 号 2, p. 91-100, 発行日 1990-08-10 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0470-6455 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2186-3563 | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA1155672X | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.11362/jcssjnendokagaku1961.30.91 | |||||
出版者 | ||||||
出版者 | 日本粘土学会 The Clay Science Society of Japan | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Concrete sewer pipe was heavily corroded by sulfate which was produced by sulfur oxidizing bacteria in the Ohmuta region of Japan. The corroded materials were studied mineralogically to gain a better understanding of the corrosion mechanism. The formation of jarosite KFe3 (SO4) 2 (OH) 6, as a result of reaction between sulfate and hydration products of portland cement, were found in the most corroded part of concrete sewer pipe. The sulfate-generated corrosion is grouped into several zones on the base of differences in the mineral formation of secondary products: Zone A & B; Jarosite formation zone, Zone C; Fe-rich zone, Zone D; gypsum formation zone, Zone E; Fe-rich zone, Zone F; Cracking zone, Zone G; Fresh concrete zone. Zones A-E in the corroded parts include expansion, loss strength and stiffness and disintegration, whereas Zones E and F show cracking and brown rim stained with iron oxides. In Zone G, ettringite crystals are formed under conditions of high pH. Since hydrated cements containing considerable amount of large ettringite crystals show high strength but no expansion. In order to evaluate the relative effects of corrosion of concrete, the rates of K-feldspar dissolution have been analized by EDAX-step scanning. The dissolution process of K-feldspar was observed that Al and K contents were rapidly decreased near rim, within 2μm region, whereas Fe content was increased. The results of these analyses indicate that the effect of K component from K-feldspar dissolution is important factor to form jarosite at pH of 3.5-4.0. The dissolution mechanism of K-feldspar and the addition of Fe component are changed significantly due to the corrosion of concretes. |
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権利 | ||||||
権利情報 | Copyright © 日本粘土学会 The Clay Science Society of Japan | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://www.jstage.jst.go.jp/browse/jcssjnendokagaku/-char/ja | |||||
関連名称 | https://www.jstage.jst.go.jp/browse/jcssjnendokagaku/-char/ja | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://www.cssj2.org/ | |||||
関連名称 | http://www.cssj2.org/ |