| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
In this study, as defects of concrete, focused on three kinds of defects (1) post-installed anchor bolts, (2) PC grout filling condition, (3) horizontal crack in RC slab, it is aimed to develop "magnetostrictive elastic wave input / receiving device" suitable for this purpose and to establish a method for accurately evaluating defects.
As a result, it was clarified that defects can be appropriately evaluated from elastic wave propagation velocity, waveform amplitude and frequency characteristics measured by "magnetostrictive elastic wave input / reception device" developed in any subject.
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