凍結防止剤により劣化したプレテンションホロースラブ桁橋の詳細調査とその劣化機構の解明
書誌事項
- タイトル別名
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- INVESTIGATION OF PRETENSION HOLLOW SLAB GIRDER BRIDGE DETERIORATED DUE TO DEICING SALT AND ITS MECHANISM
抄録
First, in a pretension hollow slab girder bridge severely damaged due to sodium chloride used as deicing salt, the detailed field inspection was performed. Next, using concrete cores sampled from the blocks of girders, the mechanical properties and chloride ion concentration of concrete were measured. Further, by removing whole concrete from blocks, the corrosion condition of steel inside was observed. From the results of these inspections, it was recognized that some girders involved highly-concentrated chloride ions and this fact resulted in not only chloride induced deterioration but also severe frost damage. Thus, additional experiments simulating actual concrete properties and environmental conditions were conducted. The experimental results revealed that Non-AE concrete involving highly-concentrated chloride ion remarkably accelerated frost damage under deicing salt.
収録刊行物
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- 土木学会論文集E2(材料・コンクリート構造)
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土木学会論文集E2(材料・コンクリート構造) 69 (1), 53-66, 2013
公益社団法人 土木学会
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詳細情報 詳細情報について
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- CRID
- 1390001205356805248
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- NII論文ID
- 130004559853
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- ISSN
- 21856567
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可