Study on the corrosion of steel bar in ASR affected concrete structure affected by de-icing salts
Project/Area Number |
24760346
|
Research Category |
Grant-in-Aid for Young Scientists (B)
|
Allocation Type | Multi-year Fund |
Research Field |
Civil engineering materials/Construction/Construction management
|
Research Institution | Kanazawa University |
Principal Investigator |
KUBO Yoshimori 金沢大学, 環境デザイン学系, 准教授 (50324108)
|
Research Collaborator |
HASHIZUME Yasunori
KAMAMOTO Takehiro
MOMIYAMA Yoshiyuki
ISHIKAWA Yuichi
KIKUCHI Toru
|
Project Period (FY) |
2012-04-01 – 2015-03-31
|
Project Status |
Completed (Fiscal Year 2014)
|
Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
|
Keywords | コンクリート / アルカリ骨材反応 / 塩害 / 複合劣化 / 維持管理 / 凍結防止剤 |
Outline of Final Research Achievements |
It is serious and important problem on maintenance of concrete structure deteriorated by Alkali-silica reaction (ASR) and chloride induced corrosion. On the occurrence of the combined deterioration of concrete structure due to ASR and chloride induced corrosion, the evolution of degradation of concrete structure is not cleared. In this study, the main scope was forced on the permeation of chloride ion and the corrosion in concrete structure affected by the combined deterioration. As the results, it is indicated that cracks caused by the expansion due to ASR may promote the degradation due to chloride induced corrosion.
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Report
(4 results)
Research Products
(8 results)