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ID 51871
フルテキストURL
著者
JARIYATHITIPONG, Paweena Research Engineer, Research and Development Labolatory, Landes Co.,Ltd
HOSOTANI, Kazuyoshi Manager, Technology Center, Landes Co.,Ltd
FUJII, Takashi Assistant Professor, Division of Environmental Science, Graduate School of Environmental and Life Science, Okayama University
AYANO, Toshiki Professor, Division of Environmental Science, Graduate School of Environmental and Life Science, Okayama University
抄録
The deterioration of concrete by sulfuric acid attack in sewage environments has become a serious problem. In this study, it was shown that the resistance to sulfuric acid of mortar and concrete can be improved by using a blast-furnace slag fine aggregate to the total amount of fine aggregate. When mortar or concrete reacts to sulfuric acid, dihydrated gypsum film is formed around the particulate of the fine aggregate. This dihydrated gypsum film could retard the penetration of sulfuric acid, thus improving the resistance to sulfuric acid. However, the resistance to sulfuric acid depends on the hardness of the dihydrated gypsum film.
キーワード
sulfuric acid attack
blast furnace slag sand
ground granulated blast furnace slag
gypsum
sewerage
発行日
2013-05
出版物タイトル
Proceeding of First International Conference on Concrete Sustainability (ICCS13)
開始ページ
581
終了ページ
586
資料タイプ
会議発表論文
言語
English
査読
不明