ID | 119154 |
Title Alternative | MEASUREMENT OF THE ACCELERATION PROPAGATED INTO FRESH CONCRETE FLOWING THROUGH SEVERAL TYAPES OF PRECAST CONCRETE MOLD WITH HELP OF RFID TAG WITH CAPACITANCE TYPE ACCELERATION SENSOR
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Author |
Yamaji, Noritsugu
Tokushima University
Hashimoto, Chikanori
Tokushima University
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Fujiwara, Kyosuke
Tokushima University
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Keywords | 無線ICタグ
プレキャストコンクリート
フレッシュコンクリート
合成加速度
Rfid(radio frequency identification) tag
Precast concrete
Fresh concrete
Resultant acceleration
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Content Type |
Journal Article
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Description | 締固め時のコンクリートの伝播加速度の測定は、従来有線加速度計による測定手法が大多数であり、無線ICタグを使用した手法は皆無である。本研究では、IoT技術を活用したワイヤレスの静電容量式加速度センサ付き無線ICタグを用い、プレキャストコンクリートの型枠内に充填されるフレッシュコンクリートの伝播加速度を計測、定量化した。計測された加速度は、スランプおよびスランプフロー値に依存しない。また製品形状および締固め充填高さ等の差異に関係なく、型枠に設置されている外部振動機近傍は大きく、遠方は小さく、加振位置からの減衰作用と考えられる。
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Description Alternative | The measurement of majority conventionally is methods to use the accelerometer having wire or cable in order to measure the acceleration on fresh concrete compacting into the form. There is not the measurement of the acceleration on fresh concrete compacting using the RFID (radio frequency identification) tag with the wireless capacitance-type acceleration sensor until now.
In this study it was carried out the measurement of acceleration transmitted from the outside vibration machines on the fresh concrete co mpacted in the form of the precast concrete product with help of the RFID tag having wireless capacitance-type acceleration sensor for the first time in the world. The resultant acceleration measured does not depend on value of the slump and slump flow. The resultant acceleration measured was larger as the distance to the position of the outside vibration machine was closer and regardless of differences such as product shape and the filling height. The difference of maximum resultant acceleration by the da mping action from the position of the outside vibration. |
Journal Title |
Cement Science and Concrete Technology
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ISSN | 09163182
21873313
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NCID | AN10243301
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Publisher | セメント協会
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Volume | 77
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Issue | 1
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Start Page | 299
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End Page | 307
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Published Date | 2024-03-29
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Remark | 利用は著作権の範囲内に限られる
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DOI (Published Version) | |
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language |
jpn
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Author
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departments |
Science and Technology
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