Evaluation of Deterioration and Specification of Defect of RC Structure by Natural Potential and External Impact-Acoustic Methods
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概要
- 論文の詳細を見る
It is a worldwide problem to build safer reinforced concrete (under-mentioned RC) structures on reflection of the great Hanshin earthquake disaster in 1995, Japan. The researches on the durability and the earthquake proof have advanced and the various countermeasures for these have been proposed. This paper deals with the specification of deterioration zones and its reliance, by using an external impact-acoustic detector, newly developed, which enables us to examine nondestructively the corrosive state of the inside of a concrete structure, and furthermore the verification with the natural potential method. The main experimental results concerning the building used in common are as follows: (1) The macroscopical corrosive degree of the RC structure can be evaluated by measuring the natural potential by means of the CuCuSO_4 half cell and the effectiveness of the corrosion map. (2) "The external impact-acoustic method" can specify precisely the corrosive parts of reinforcement without the least damage on the RC structure, although the judgment of the corrosive grade is difficult; so, this disadvantage must be covered by using the natural potential method at the same time. (3) The relationship between the natural potential method and the external impact-acoustic one is quantitatively analyzed concerning an existing building.
- 社団法人日本材料学会の論文
- 2001-06-15
著者
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KATO Naoki
Department of Neurosurgery, Jikei University School of Medicine Kashiwa Hospital
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KATO Kiyoshi
Department of Cosmosciences, Hokkaido University
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Murata Yoshiharu
Division Of Cardiology Department Of Medicine And Clinical Science Yamaguchi University Graduate Sch
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Yamazaki Masatoshi
Division Of Cardiology Department Of Medicine And Clinical Science Yamaguchi University Graduate Sch
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KAWAI Tadashi
Department of Electrical Engineering and Computer Sciences, Graduate School of Engineering, Universi
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MURATA Yoshiharu
Department of Teratology and Genetics, Research Institute of Environmental Medicine, Nagoya Universi
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Murata Yoshiharu
Department Of Civil Engineering College Of Engineering Nihon University
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TANIGAWA Yasuo
Department of Architecture, Graduate School of Engineering, Nagoya University
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Kato Naoki
Department Of Architectural Engineering Asano Institute Of Technology
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SAEKI Noboru
Division of Structural and Geotechnical Engineering, Graduate School of Engineering, Hokkaido Univer
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Saeki N
Hokkaido Univ. Sapporo Jpn
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Yamazaki Masatoshi
Division Of Cardiology Shizuoka Saiseikai General Hospital
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Kato K
Department Of Civil Engineering College Of Industrial Technology Nihon University
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Saeki Noboru
Division Of Structural And Geotechnical Engineering Graduate School Of Engineering Hokkaido Universi
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Tanigawa Yasuo
Department Of Architecture Graduate School Of Engineering Nagoya University
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Kato Kiyoshi
Department Of Cosmosciences Hokkaido University
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Kawai Tadashi
Department Of Civil Engineering College Of Industrial Technology Nihon University
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Kawai Tadashi
Department Of Applied Chemistry Graduate School Of Engineering Tokyo Metropolitan University
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Kato Kiyoshi
Department Of Civil Engineering National Defense Academy
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Kato Naoki
Department of Architectural Engineering, Asano Institute of Technology
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