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Swelling–shrinkage properties and soil improvement of compacted expansive soil, Ning-Liang Highway, China |
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| Authors: | Yanjun Du Shenglin Li and Shigenori Hayashi |
| Institution: | a Faculty of Science and Technology, Graduate School of Science and Engineering, Saga University, Saga 840, Japan b Earth Sciences Department, Nanjing University, Nanjing 210093, People's Republic of China c Institute of Lowland Technology, Saga University, Saga 840, Japan |
| Abstract: | In this paper, the swelling–shrinkage properties of the compacted expansive soil in the Huaiyin Section of the Ning-Lian Highway are introduced, and swelling–shrinkage mechanisms are discussed based on changes in soil water content, dry density, material composition and fabric. The improvement of the compacted expansive soil by lime is also discussed briefly. It is concluded that careful attention should be paid to this type of compacted expansive soil. |
| Keywords: | Expansive soil Fabric Soil improvement Swelling–shrinkage behavior |
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