Multi-scale durability mechanics of concrete structures deteriorated by gel-liquid expansion
| Project/Area Number |
15H05531
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
Takahashi Yuya 東京大学, 大学院工学系研究科(工学部), 講師 (10726805)
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥23,920,000 (Direct Cost: ¥18,400,000、Indirect Cost: ¥5,520,000)
Fiscal Year 2016: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2015: ¥14,820,000 (Direct Cost: ¥11,400,000、Indirect Cost: ¥3,420,000)
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| Keywords | 耐久性力学 / アルカリ骨材反応 / 凍結融解作用 / 複合劣化 / 疲労 / コンクリート / アルカリシリカ反応 / 構造性能 |
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| Outline of Final Research Achievements |
In order to predict the structural behavior of reinforced concrete deteriorated by gel or liquid water expansion, new models are installed to the existing material-structural coupled calculation system. The chemo-mechanical models for the expansive alkali silica gel and the volumetric changes due to frozen pore water are developed. As a results, the integrated calculation system can deal with the durability mechanics of concrete structures including the problem of combined deterioration of alkali silica reaction and freeze-thaw cycles. With the developed calculation system, the method to predict the fatigue lives of existing deteriorated reinforced concrete are proposed with the combination of simulation techniques and non-destructive testing methods.
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Report
(3 results)
Research Products
(19 results)
