ID | 118142 |
Title Alternative | MEASUREMENT OF ACCELERATION PROPAGATED INTO FRESH CONCRETE DURING PLACING IN THE MOCK-UP FORM USING ONSITE VIBRATOR
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Author |
Ikezawa, Sodai
TOKYO INSTITUTE OF TECHNOLOGY
Hashimoto, Chikanori
TOKUSHIMA UNIVERSITY
Tokushima University Educator and Researcher Directory
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Yamaji, Noritsugu
TOKUSHIMA UNIVERSITY
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Keywords | フレッシュコンクリート
加速度
模擬型枠
センサ
インナーバイブレータ
Fresh concrete
Acceleration
Mock-up formwork
Sensor
Onsite vibrator
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Content Type |
Journal Article
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Description | 従来、フレッシュコンクリート内部の加速度の伝播状況に関する既往の研究の多くは、充填後の試料内部または型枠外部から計測するものが多く、締固め途中の流動中のフレッシュコンクリートの加速度を計測した事例は少なかった。本研究では、実現場を想定した締固め途中のフレッシュコンクリート内部の加速度を計測した。本実験で開発した計測システムで、コンクリート内部に伝播する加速度を計測し、距離による加速度減衰は大きいが、鉄筋間隙による加速度減衰は小さいことを定量的に把握できた。また、インナーバイブレータからコンクリートに伝播される加速度は5~20cm程度のスランプには依存しないことが明らかになった。
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Description Alternative | Most of the previous studies on the propagation of acceleration inside fresh concrete have measured the acceleration in the filled sample or from outside the formwork, and there have been few cases where the acceleration of fresh concrete in flow during the compaction process has been measured. In this study, the acceleration on fresh concrete during compaction in mock up form was measured. With the measurement system developed in this experiment, the acceleration propagating inside the fresh concrete was able to measure on several places of the position at the same time and the existence of acceleration damping could be quantitatively determined. It was also found that the acceleration propagated into the concrete from the onsite vibrator was independent of the value of slump.
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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 | 76
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Issue | 1
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Start Page | 576
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End Page | 584
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Published Date | 2023-03-31
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Remark | 利用は著作権の範囲内に限られる
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EDB ID | |
DOI (Published Version) | |
URL ( Publisher's Version ) | |
FullText File | |
language |
jpn
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TextVersion |
Author
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departments |
Science and Technology
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