| Issue |
E3S Web Conf.
Volume 92, 2019
7th International Symposium on Deformation Characteristics of Geomaterials (IS-Glasgow 2019)
|
|
|---|---|---|
| Article Number | 04008 | |
| Number of page(s) | 4 | |
| Section | Geomaterial Behaviour: Small Strain | |
| DOI | https://doi.org/10.1051/e3sconf/20199204008 | |
| Published online | 25 June 2019 | |
Characteristics of elastic waves passing through a flowable fill at early age
1
Korea University, School of Civil, Environmental and Architectural Engineering, Seoul, South Korea
2
Kyungpook National University, School of Agricultural Civil & Bio-Industrial Engineering, Daegu, South Korea
* Corresponding author: jongsub@korea.ac.kr
Elastic waves obtained from transducers are widely used to monitor the strength and integrity of cementitious materials. A pair of bender elements (BEs) and piezo disk elements (PDEs) embedded in a cuboid mould are applied to monitor elastic waves passing through a cementitious material known as a flowable fill at early age. The flowable fills used in this study are mixed with calcium sulfoaluminate cement, sand, silt, fly ash, water, and an accelerator. Compressional and shear waves acquired from the PDEs and BEs, respectively, are observed for up to 72 hrs. Results show that the compressional and shear wave velocities increased with curing time. The sensors can be used effectively to monitor the hardening characteristics of flowable fills at early age, and the BEs are particularly suitable for evaluating the hardening conditions of flowable fills as a result of the wide variation in shear wave velocities.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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