Proceedings of the 2024 5th International Conference on Civil, Architecture and Disaster Prevention and Control (CADPC 2024)

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Using P-wave Velocity to Monitor the Early Hydration Process of Cemented Paste Backfill for Disaster Prevention and Prediction

Authors
Zixuan Qing1, Ying Shi1, *, Sicheng Lu1, Ruiyang Nie1
1Department of Resources and Safety Engineering, Central South University, Changsha, 410083, China
*Corresponding author. Email: shiyingfriend@csu.edu.cn
Corresponding Author
Ying Shi
Available Online 13 June 2024.
DOI
10.2991/978-94-6463-435-8_6How to use a DOI?
Keywords
P-wave velocity; cemented paste backfill; early hydration process
Abstract

Cemented paste backfill (CPB) is a widely used filling material in mine backfilling and underground engineering. Understanding the hydration process of CPB is essential for ensuring its stability and safety. The study utilized P-wave velocity to characterize the early hydration process of CPB. Three stages of CPB evolution were identified: dissolution and induction period, acceleration period, and deceleration period. In the first stage, the rapid increase in P-wave velocity corresponded to particle settlement within the CPB, leading to compaction. In the second stage, hydration accelerated, resulting in a rapid increase in P-wave velocity. In the third stage, as hydration slowed down, the increase in P-wave velocity was gradual. The hydration process affected CPB’s pore structure and moisture content, thereby influencing P-wave velocity. These findings were corroborated by the changes in electrical conductivity and matrix suction measurements. The study established the relationship between P-wave velocity and the early hydration process of CPB, providing valuable insights for disaster prevention and prediction.

Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 2024 5th International Conference on Civil, Architecture and Disaster Prevention and Control (CADPC 2024)
Series
Atlantis Highlights in Engineering
Publication Date
13 June 2024
ISBN
10.2991/978-94-6463-435-8_6
ISSN
2589-4943
DOI
10.2991/978-94-6463-435-8_6How to use a DOI?
Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Zixuan Qing
AU  - Ying Shi
AU  - Sicheng Lu
AU  - Ruiyang Nie
PY  - 2024
DA  - 2024/06/13
TI  - Using P-wave Velocity to Monitor the Early Hydration Process of Cemented Paste Backfill for Disaster Prevention and Prediction
BT  - Proceedings of the 2024 5th International Conference on Civil, Architecture and Disaster Prevention and Control (CADPC 2024)
PB  - Atlantis Press
SP  - 35
EP  - 40
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-435-8_6
DO  - 10.2991/978-94-6463-435-8_6
ID  - Qing2024
ER  -