| Budget Amount *help |
¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2018: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2017: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2016: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
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| Outline of Final Research Achievements |
The methods for diagnosis and prognosis of concrete affected by Internal Swelling Reactions (ISRs) such as alkali-silica reaction (ASR) and delayed ettringite formation (DEF) have been investigated in this study. Firstly, the characteristics of microstructural damage of aggregate and paste in the case of ASR and gap formation in the case of DEF were evaluated. Then the model reflecting the microstructural damage was established and implemented in the numerical analysis developed. In parallel, the testing method for predicting expansion of concrete was also developed. As a result, expansive behavior of concrete block exposed to the field was fairly simulated by combining the numerical analysis and laboratory test.
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