| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Outline of Final Research Achievements |
The present study was conducted to develop an accelerated test method for preventing an alkali-silica reaction (ASR) and a deterioration prediction technique for concrete structures affected by the alkali-silica reaction. The following results were obtained in the present study.
The accelerated test conditions to judge the alkali-silica reactivity of concrete early was proposed. In addition, the accelerated test conditions for evaluating the suppressing effect of mineral admixtures on ASR expansion of the concrete early was proposed. Meanwhile，the effects of ASR expansion on the mechanical properties (compressive strength, tensile strength, elastic modulus of elasticity, dynamic modulus of elasticity, Poisson's ratio) of concrete were clarified. Furthermore, the technique to estimate the ASR expansion of concrete was proposed.
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