Proceedings of the 2023 5th International Conference on Civil Engineering, Environment Resources and Energy Materials (CCESEM 2023)

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Experimental investigation on the hydraulic fracturing of cement mortar attacked by sulfate solutions with different pH values

Authors
Detan Liu2, 1, *
1Datang Hydropower Science & Technology Research Institute Co., Ltd., Chengdu, 610036, China
2College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, 210098, China
*Corresponding author. Email: liudetan1993@163.com
Corresponding Author
Detan Liu
Available Online 14 December 2023.
DOI
10.2991/978-94-6463-316-0_32How to use a DOI?
Keywords
cement mortar; corrosion; pH values; hydraulic fracturing; strength; cirtical water pressure
Abstract

Cement-based materials undergo deterioration in a sulfate environment with different pH values. This work aimed to investigate the performance of cement mortar against hydraulic fracturing exposed to sulfate environment with different pH values. For this purpose, a series of hydraulic fracturing tests and compressive strength tests on the cement mortar immersed in sulfate solutions with different pH values under different exposure periods are performed. The results showed different chemical solutions have different influences on the mechanical properties and hydraulic fracturing properties of the cement mortar specimens. After being attacked for 270 days by sodium sulfate solutions with pH values of 7 and 3, the corresponding mortar specimens exhibited critical water pressures, were 48.5% and 57.5% lower than that in their natural states, respectively. Under a sodium sulfate solution with a pH of 1, the critical water pressure of the mortar specimen decreased, the prefabricated crack on the mortar specimen was deteriorated severely after 270 days of immersion, and its resistance to hydraulic fracturing was almost lost.

Copyright
© 2023 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 2023 5th International Conference on Civil Engineering, Environment Resources and Energy Materials (CCESEM 2023)
Series
Advances in Engineering Research
Publication Date
14 December 2023
ISBN
10.2991/978-94-6463-316-0_32
ISSN
2352-5401
DOI
10.2991/978-94-6463-316-0_32How to use a DOI?
Copyright
© 2023 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  - Detan Liu
PY  - 2023
DA  - 2023/12/14
TI  - Experimental investigation on the hydraulic fracturing of cement mortar attacked by sulfate solutions with different pH values
BT  - Proceedings of the 2023 5th International Conference on Civil Engineering, Environment Resources and Energy Materials (CCESEM 2023)
PB  - Atlantis Press
SP  - 307
EP  - 314
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-316-0_32
DO  - 10.2991/978-94-6463-316-0_32
ID  - Liu2023
ER  -