Role of Diatom Microstructure in Determining the Atterberg Limits of Fine-Grained Diatomaceous Soil
文献类型：期刊论文
| 作者 | Xu, Yiqing2,3; Zhang, Xianwei2; Wang, Gang2,3; Liu, Xinyu1; Yang, Aiwu4 |
| 刊名 | APPLIED SCIENCES-BASEL
 |
| 出版日期 | 2023-02-01 |
| 卷号 | 13期号:4页码:- |
| 关键词 | diatom diatomaceous soil Atterberg limits microstructure diatom crushing soil classification |
| 英文摘要 | The presence of diatoms in diatomaceous soil gives it geotechnical properties that are unusual compared with common clays. The most typical physical property of diatomaceous soil is its abnormally high Atterberg limits compared to fine-grained soil without diatoms. For diatomaceous soil, the Atterberg limits are associated with many factors, such as diatom content, diatom crushing degree, etc. In the study reported here, it was ascertained that more diatoms lead to higher plastic and liquid limits. Once the diatoms are crushed, the plastic and liquid limits decrease. The pore fluid salt concentration barely influenced the Atterberg limits of diatomaceous soil. Additionally, the porous diatom microstructure and trimodal pore size distribution of diatomaceous soil were investigated via scanning electron microscopy, transmission electron microscopy, and mercury intrusion porosimetry. The underlying mechanism of abnormally high liquid and plastic limits of diatomaceous soil is revealed as the water stored in the special diatom microstructure. However, water in diatoms has no contribution to plasticity. Also discussed is the applicability of the current soil classification systems for diatomaceous soil. The findings of this study can help for a better understanding of Atterberg limits of diatomaceous soil and provide suggestions for the classification of diatomaceous soil. |
| 学科主题 | Chemistry ; Engineering ; Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000938223600001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35369]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China 2.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 3.University of Chinese Academy of Sciences, Beijing 101408, China 4.School of Environmental Science and Engineering, Donghua University, Shanghai 200051, China |
| 推荐引用方式 GB/T 7714 | Xu, Yiqing,Zhang, Xianwei,Wang, Gang,et al. Role of Diatom Microstructure in Determining the Atterberg Limits of Fine-Grained Diatomaceous Soil[J]. APPLIED SCIENCES-BASEL,2023,13(4):-. |
| APA | Xu, Yiqing,Zhang, Xianwei,Wang, Gang,Liu, Xinyu,&Yang, Aiwu.(2023).Role of Diatom Microstructure in Determining the Atterberg Limits of Fine-Grained Diatomaceous Soil.APPLIED SCIENCES-BASEL,13(4),-. |
| MLA | Xu, Yiqing,et al."Role of Diatom Microstructure in Determining the Atterberg Limits of Fine-Grained Diatomaceous Soil".APPLIED SCIENCES-BASEL 13.4(2023):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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