Engineering behavior and geotechnical challenges of sulfate-rich soils in Astana
This study investigates the engineering properties of sulfate-containing soils from Astana, Kazakhstan, with a focus on their physical, chemical, and water retention characteristics. Understanding the challenges posed by sulfate-rich soils is critical for developing effective stabilization methods,...
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| Language: | English |
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Frontiers Media S.A.
2025-02-01
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| Series: | Frontiers in Built Environment |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fbuil.2024.1504643/full |
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| author | Nazerke Sagidullina Alfrendo Satyanaga Jong Kim Sung-Woo Moon |
| author_facet | Nazerke Sagidullina Alfrendo Satyanaga Jong Kim Sung-Woo Moon |
| author_sort | Nazerke Sagidullina |
| collection | DOAJ |
| description | This study investigates the engineering properties of sulfate-containing soils from Astana, Kazakhstan, with a focus on their physical, chemical, and water retention characteristics. Understanding the challenges posed by sulfate-rich soils is critical for developing effective stabilization methods, especially in regions with extreme climates. Initial soil characterization revealed that the soil is well-graded sand with silt (SW-SM), with significant sulfate content (8518.8 ppm) and salinity (18.45%). Advanced techniques, including ion chromatography (IC), X-ray fluorescence (XRF), X-ray diffraction (XRD), and scanning electron microscopy (SEM), identified the presence of sulfate minerals such as gypsum and anhydrite. The soil water characteristic curve (SWCC) demonstrated bimodal behavior, with distinct air entry values of 4.988 kPa for macropores and 1000 kPa for micropores, highlighting its complex water retention properties. Shrinkage tests, analyzed using a 3D scanner, revealed a hyperbolic drying curve, with a sharp void ratio reduction during the normal shrinkage phase and minimal changes during the residual phase. These results underscore the soil’s susceptibility to volumetric changes under varying moisture conditions. This comprehensive geotechnical characterization provides critical insights into the behavior of sulfate-rich soils and their implications for infrastructure stability. The findings emphasize the need for tailored engineering solutions to mitigate risks associated with sulfate-induced swelling and shrinkage, offering practical contributions to construction practices in sulfate-affected regions. Future research will explore stabilization strategies to enhance the mechanical performance and durability of these soils. |
| format | Article |
| id | doaj-art-ccd19ccf5ab345279fafe24e1a0a1078 |
| institution | Kabale University |
| issn | 2297-3362 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Built Environment |
| spelling | doaj-art-ccd19ccf5ab345279fafe24e1a0a10782025-02-12T07:25:40ZengFrontiers Media S.A.Frontiers in Built Environment2297-33622025-02-011010.3389/fbuil.2024.15046431504643Engineering behavior and geotechnical challenges of sulfate-rich soils in AstanaNazerke SagidullinaAlfrendo SatyanagaJong KimSung-Woo MoonThis study investigates the engineering properties of sulfate-containing soils from Astana, Kazakhstan, with a focus on their physical, chemical, and water retention characteristics. Understanding the challenges posed by sulfate-rich soils is critical for developing effective stabilization methods, especially in regions with extreme climates. Initial soil characterization revealed that the soil is well-graded sand with silt (SW-SM), with significant sulfate content (8518.8 ppm) and salinity (18.45%). Advanced techniques, including ion chromatography (IC), X-ray fluorescence (XRF), X-ray diffraction (XRD), and scanning electron microscopy (SEM), identified the presence of sulfate minerals such as gypsum and anhydrite. The soil water characteristic curve (SWCC) demonstrated bimodal behavior, with distinct air entry values of 4.988 kPa for macropores and 1000 kPa for micropores, highlighting its complex water retention properties. Shrinkage tests, analyzed using a 3D scanner, revealed a hyperbolic drying curve, with a sharp void ratio reduction during the normal shrinkage phase and minimal changes during the residual phase. These results underscore the soil’s susceptibility to volumetric changes under varying moisture conditions. This comprehensive geotechnical characterization provides critical insights into the behavior of sulfate-rich soils and their implications for infrastructure stability. The findings emphasize the need for tailored engineering solutions to mitigate risks associated with sulfate-induced swelling and shrinkage, offering practical contributions to construction practices in sulfate-affected regions. Future research will explore stabilization strategies to enhance the mechanical performance and durability of these soils.https://www.frontiersin.org/articles/10.3389/fbuil.2024.1504643/fullsulfate-containing soilssoil-water characteristic curvegeotechnical characterizationmicrostructural analysisshrinkage test |
| spellingShingle | Nazerke Sagidullina Alfrendo Satyanaga Jong Kim Sung-Woo Moon Engineering behavior and geotechnical challenges of sulfate-rich soils in Astana Frontiers in Built Environment sulfate-containing soils soil-water characteristic curve geotechnical characterization microstructural analysis shrinkage test |
| title | Engineering behavior and geotechnical challenges of sulfate-rich soils in Astana |
| title_full | Engineering behavior and geotechnical challenges of sulfate-rich soils in Astana |
| title_fullStr | Engineering behavior and geotechnical challenges of sulfate-rich soils in Astana |
| title_full_unstemmed | Engineering behavior and geotechnical challenges of sulfate-rich soils in Astana |
| title_short | Engineering behavior and geotechnical challenges of sulfate-rich soils in Astana |
| title_sort | engineering behavior and geotechnical challenges of sulfate rich soils in astana |
| topic | sulfate-containing soils soil-water characteristic curve geotechnical characterization microstructural analysis shrinkage test |
| url | https://www.frontiersin.org/articles/10.3389/fbuil.2024.1504643/full |
| work_keys_str_mv | AT nazerkesagidullina engineeringbehaviorandgeotechnicalchallengesofsulfaterichsoilsinastana AT alfrendosatyanaga engineeringbehaviorandgeotechnicalchallengesofsulfaterichsoilsinastana AT jongkim engineeringbehaviorandgeotechnicalchallengesofsulfaterichsoilsinastana AT sungwoomoon engineeringbehaviorandgeotechnicalchallengesofsulfaterichsoilsinastana |