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Investigation of Erosion of Cement-Bentonite via Piping
Joint Authors
Wang, Zijun
Zhao, Boming
Royal, Alexander C. D.
Source
Advances in Materials Science and Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-09-28
Country of Publication
Egypt
No. of Pages
8
Abstract EN
Cement-bentonite is one of the main materials used in the seepage barriers to protect earth dams and levees from water erosion.
However, the current understanding of the erodibility of the cementitious materials and the interactions between cracked seepage barriers and the water flow is inadequate.
Based on the laboratory pinhole erosion test, we first investigated the impacts of cement-bentonite treatments by using the ground granulated blast-furnace slag (GGBS) as replacement on the erosion characteristics, compared with the original mixtures; the inclusion of GGBS highlighted a potential advantage against water erosion.
In addition, we proposed to calculate the erosion percentage and establish the mathematical relationships between the erosion percentage and different regimes, that is, different curing period, erosion time, and sizes of initial holes.
Results showed that enough curing period was critical to avoid the increases of hydraulic conductivity in the macrofabric of the barrier; meanwhile, the materials were eroded quickly at the beginning and slowed down with the erosion time, where the enlargement of the initial creaks would be stabilised at some point in time.
Moreover, the sizes of initial holes may affect the erosion situation varying from the sample curing periods.
American Psychological Association (APA)
Wang, Zijun& Zhao, Boming& Royal, Alexander C. D.. 2017. Investigation of Erosion of Cement-Bentonite via Piping. Advances in Materials Science and Engineering،Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1123601
Modern Language Association (MLA)
Wang, Zijun…[et al.]. Investigation of Erosion of Cement-Bentonite via Piping. Advances in Materials Science and Engineering No. 2017 (2017), pp.1-8.
https://search.emarefa.net/detail/BIM-1123601
American Medical Association (AMA)
Wang, Zijun& Zhao, Boming& Royal, Alexander C. D.. Investigation of Erosion of Cement-Bentonite via Piping. Advances in Materials Science and Engineering. 2017. Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1123601
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1123601