Concrete structures suffer from the corrosion of reinforcing steel-bars due to severe environments, in particular, chloride attack. Acoustic Emission (AE) techniques have been extensively applied to concrete and concrete structures. In order to identify the onset of corrosion and the nucleation of concrete cracking due to expansion of corrosion products, continuous AE monitoring is available. These corrosion-induced cracks in concrete are studies in an accelerated corrosion test, where kinematics of micro-cracks is identified by SiGMA (Simplified Green's functions for Moment tensor Analysis). Monitoring the corrosion process of rebar by AE, it is confirmed that the onset of corrosion and the nucleation of corrosion-induced cracks in concrete are successfully identified. Then, generating mechanisms of corrosion-induced cracks are clarified by the SiGMA analysis.
雑誌名
熊本大学工学部技術部年次報告集
巻
2010
ページ
91 - 99
発行年
2010
書誌レコードID
AA12358619
フォーマット
application/pdf
形態
1697877 bytes
著者版フラグ
publisher
日本十進分類法
511.7
出版者
熊本大学工学部技術部
資源タイプ
論文(Article)
資源タイプ・ローカル
紀要論文
資源タイプ・NII
Departmental Bulletin Paper
資源タイプ・DCMI
text
資源タイプ・ローカル表示コード
02
コメント
7th International Conference on Fracture Mechanics of Concrete and\
Concrete Structures における発表論文