The Effects of Salt-Lake Salt Solution on the Strength of Expansive Soil
Expansive soils are widely distributed and often cause serious damage to structures. Hanzhong expansive soil and Yulin salt-lake solution were adopted to investigate the effect of salt-lake salt solution on the strength of expansive soil. Expansive soils modified with salt-lake salt solutions with d...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2022/2798281 |
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| author | Shaowei Zhang Dongdong Li |
| author_facet | Shaowei Zhang Dongdong Li |
| author_sort | Shaowei Zhang |
| collection | DOAJ |
| description | Expansive soils are widely distributed and often cause serious damage to structures. Hanzhong expansive soil and Yulin salt-lake solution were adopted to investigate the effect of salt-lake salt solution on the strength of expansive soil. Expansive soils modified with salt-lake salt solutions with different concentrations (0.1, 0.5, and 1.0 mol/L) were evaluated by X-ray diffraction (XRD), Atterberg limit, free swelling, no load swelling ratio, and triaxial compression tests. The improved expansive soil research using salt-lake salt solution was carried out based on the macroscopic mechanical characteristics. Test results showed that the addition of salt-lake solution effectively inhibited the expansibility of soil. With the increase of the concentration of salt-lake solution, liquid limit, plastic limit, plastic index, free expansion rate, no load swelling, cohesion, and internal friction angle of expansive soil were decreased in varying degrees, and stress-strain relationship curve gradually showed strain softening trend. The reason for the above results was believed to be that salt-lake salt solution reduced the force between particles on shear surface and reduced mutual hindrance. |
| format | Article |
| id | doaj-art-6a20af494a1740e688ae010947fb6423 |
| institution | Kabale University |
| issn | 1468-8123 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-6a20af494a1740e688ae010947fb64232025-02-03T01:22:13ZengWileyGeofluids1468-81232022-01-01202210.1155/2022/2798281The Effects of Salt-Lake Salt Solution on the Strength of Expansive SoilShaowei Zhang0Dongdong Li1School of Civil Engineering and ArchitectureSchool of Civil Engineering and ArchitectureExpansive soils are widely distributed and often cause serious damage to structures. Hanzhong expansive soil and Yulin salt-lake solution were adopted to investigate the effect of salt-lake salt solution on the strength of expansive soil. Expansive soils modified with salt-lake salt solutions with different concentrations (0.1, 0.5, and 1.0 mol/L) were evaluated by X-ray diffraction (XRD), Atterberg limit, free swelling, no load swelling ratio, and triaxial compression tests. The improved expansive soil research using salt-lake salt solution was carried out based on the macroscopic mechanical characteristics. Test results showed that the addition of salt-lake solution effectively inhibited the expansibility of soil. With the increase of the concentration of salt-lake solution, liquid limit, plastic limit, plastic index, free expansion rate, no load swelling, cohesion, and internal friction angle of expansive soil were decreased in varying degrees, and stress-strain relationship curve gradually showed strain softening trend. The reason for the above results was believed to be that salt-lake salt solution reduced the force between particles on shear surface and reduced mutual hindrance.http://dx.doi.org/10.1155/2022/2798281 |
| spellingShingle | Shaowei Zhang Dongdong Li The Effects of Salt-Lake Salt Solution on the Strength of Expansive Soil Geofluids |
| title | The Effects of Salt-Lake Salt Solution on the Strength of Expansive Soil |
| title_full | The Effects of Salt-Lake Salt Solution on the Strength of Expansive Soil |
| title_fullStr | The Effects of Salt-Lake Salt Solution on the Strength of Expansive Soil |
| title_full_unstemmed | The Effects of Salt-Lake Salt Solution on the Strength of Expansive Soil |
| title_short | The Effects of Salt-Lake Salt Solution on the Strength of Expansive Soil |
| title_sort | effects of salt lake salt solution on the strength of expansive soil |
| url | http://dx.doi.org/10.1155/2022/2798281 |
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