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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
Author
Yamaji, Noritsugu Tokushima University
Fujiwara, Kyosuke Tokushima University
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
Content Type
Journal Article
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。
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
ISSN
09163182
21873313
NCID
AN10243301
Publisher
セメント協会
Volume
77
Issue
1
Start Page
299
End Page
307
Published Date
2024-03-29
Remark
利用は著作権の範囲内に限られる
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
jpn
TextVersion
Author
departments
Science and Technology