2016 Fiscal Year Final Research Report
Development of Measurement Method for Internal Displacement in Concrete with X Ray Computed Tomography and Particle Tracking Velocimetry
| Project/Area Number |
26630207
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Civil engineering materials/Construction/Construction management
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| Research Institution | Kindai University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | コンクリート / X線CT / PTV / 3次元画像 / 画像計測 / 内部変形 |
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| Outline of Final Research Achievements |
In previous studies, the expand or shrinkage displacement in the concrete specimen was estimated with the theoretical models or 2-dimensional image correlation methods. To understand the practical internal displacement in concrete, we have developed the new X ray computed tomography apparatus and propose the measurement methods with the 3-dimensional image and the particle tracking velocimetry method. In this study, for the development of the proposal measurement methods, the tracer for the displacements is selected, fundamental measurement techniques are developed and the developed measurement method is applied for the internal displacements of concrete specimens. As the results, it is clarified that the best marker was the zirconia ball and the coordinate transformation decreased the mechanical errors of 3-dimensional images. We can to measure the internal displacements of the concrete specimen with the error of approximately 270u with the method proposed in this study.
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| Free Research Field |
建設材料学
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