Issue |
E3S Web Conf.
Volume 165, 2020
2020 2nd International Conference on Civil Architecture and Energy Science (CAES 2020)
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Article Number | 04066 | |
Number of page(s) | 4 | |
Section | Civil, Architectural Engineering | |
DOI | https://doi.org/10.1051/e3sconf/202016504066 | |
Published online | 01 May 2020 |
Study on electro-osmotic consolidation of bentonite reinforced by nano-montmorillonite
1 Shaanxi Key Laboratory of Safety and Durability of Concrete Structures, Xijing University, Xi’an, Shaanxi 710123, China
2 School of Geological Engineering and Geomatics, Chang’an University, Xi’an, Shaanxi 710054, China
* Corresponding author’s e-mail: T_bag945@126.com
In order to study the effect of nano-montmorillonite on the electro-osmotic consolidation of bentonite, four groups of electro-osmotic consolidation tests were carried out with different content of nano-montmorillonite (0‰, 1‰, 2‰ and 3‰), and the change rules of current, potential, drainage, water content, pH value and shear strength were analyzed. The results showed that the current, potential and drainage rate decreased with the increase of time. After 48 hours, the current of T2 decreased by 91.23%, which has the lowest decrease rate. Meanwhile, T2 has the largest total discharge and lowest water content. With the distance increasing from anode, the pH value increased, while the shear strength decreased. The research results indicated that nano-montmorillonite has a significant effect on the consolidation of bentonite.
© The Authors, published by EDP Sciences, 2020
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