Composite Sand–Clay Infrastructural Soil Fills: Characteristic Consolidation and Hydraulic Properties
In the design construction of infrastructural projects comprised of geotechnical applications, including composite soil fill layers, compacted sand-clay soil fills are widely preferred as barrier layers, particularly in solid waste landfills, to minimize leakage, to prevent leachate from entering in...
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| Language: | English |
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Çanakkale Onsekiz Mart University
2024-09-01
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| Series: | Journal of Advanced Research in Natural and Applied Sciences |
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| Online Access: | https://dergipark.org.tr/en/download/article-file/3625989 |
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| author | Burcu Dışkaya Tanay Karademir |
| author_facet | Burcu Dışkaya Tanay Karademir |
| author_sort | Burcu Dışkaya |
| collection | DOAJ |
| description | In the design construction of infrastructural projects comprised of geotechnical applications, including composite soil fill layers, compacted sand-clay soil fills are widely preferred as barrier layers, particularly in solid waste landfills, to minimize leakage, to prevent leachate from entering into groundwater. When bentonite clay with high water absorption capacity and low hydraulic conductivity is mixed with sand possessing relatively enhanced frictional properties, greater shear strength capacity, an effective fill material exhibiting low sensitivity to frost, and low volume change in case of wetting, drying can be obtained. On the other hand, when montmorillonite clay is loaded, due to highly critical volumetric contraction or dilation characteristics (high compressibility nature of clay), the soil fill composed of sand-clay will significantly consolidate. This situation may cause differential settlement problems of infrastructural fills employed in geotechnical applications. In this regard, the load conditions (mechanical effects) and the environmental conditions (physicochemical effects) in the field control compressibility characteristics and consolidation properties of sand-bentonite clay mixtures. This will ultimately impact the desired stability conditions of sand-clay soil layers built for constructed infrastructural fill, resulting in a deviation from anticipated performance conditions. To this end, in this study, the specimens of sand-bentonite clay mixtures prepared with different contents of sand-bentonite clay were subjected to one-dimensional consolidation tests to investigate the effect of bentonite content used in the mixture on consolidation behavior, hydraulic properties, and effect of sand amount on rate of consolidation and on resulting compressive strength behavior. |
| format | Article |
| id | doaj-art-0eccd72dc4e74a69ac3c4db62c5bcce5 |
| institution | Kabale University |
| issn | 2757-5195 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | Çanakkale Onsekiz Mart University |
| record_format | Article |
| series | Journal of Advanced Research in Natural and Applied Sciences |
| spelling | doaj-art-0eccd72dc4e74a69ac3c4db62c5bcce52025-02-05T18:13:03ZengÇanakkale Onsekiz Mart UniversityJournal of Advanced Research in Natural and Applied Sciences2757-51952024-09-0110364065810.28979/jarnas.1411201453Composite Sand–Clay Infrastructural Soil Fills: Characteristic Consolidation and Hydraulic PropertiesBurcu Dışkaya0https://orcid.org/0000-0002-6170-3856Tanay Karademir1https://orcid.org/0000-0002-9689-2140BEYKENT ÜNİVERSİTESİİSTANBUL BİLGİ ÜNİVERSİTESİIn the design construction of infrastructural projects comprised of geotechnical applications, including composite soil fill layers, compacted sand-clay soil fills are widely preferred as barrier layers, particularly in solid waste landfills, to minimize leakage, to prevent leachate from entering into groundwater. When bentonite clay with high water absorption capacity and low hydraulic conductivity is mixed with sand possessing relatively enhanced frictional properties, greater shear strength capacity, an effective fill material exhibiting low sensitivity to frost, and low volume change in case of wetting, drying can be obtained. On the other hand, when montmorillonite clay is loaded, due to highly critical volumetric contraction or dilation characteristics (high compressibility nature of clay), the soil fill composed of sand-clay will significantly consolidate. This situation may cause differential settlement problems of infrastructural fills employed in geotechnical applications. In this regard, the load conditions (mechanical effects) and the environmental conditions (physicochemical effects) in the field control compressibility characteristics and consolidation properties of sand-bentonite clay mixtures. This will ultimately impact the desired stability conditions of sand-clay soil layers built for constructed infrastructural fill, resulting in a deviation from anticipated performance conditions. To this end, in this study, the specimens of sand-bentonite clay mixtures prepared with different contents of sand-bentonite clay were subjected to one-dimensional consolidation tests to investigate the effect of bentonite content used in the mixture on consolidation behavior, hydraulic properties, and effect of sand amount on rate of consolidation and on resulting compressive strength behavior.https://dergipark.org.tr/en/download/article-file/3625989sand-clay mixturesinfrastructural soil fillsconsolidation characteristicshydraulic properties |
| spellingShingle | Burcu Dışkaya Tanay Karademir Composite Sand–Clay Infrastructural Soil Fills: Characteristic Consolidation and Hydraulic Properties Journal of Advanced Research in Natural and Applied Sciences sand-clay mixtures infrastructural soil fills consolidation characteristics hydraulic properties |
| title | Composite Sand–Clay Infrastructural Soil Fills: Characteristic Consolidation and Hydraulic Properties |
| title_full | Composite Sand–Clay Infrastructural Soil Fills: Characteristic Consolidation and Hydraulic Properties |
| title_fullStr | Composite Sand–Clay Infrastructural Soil Fills: Characteristic Consolidation and Hydraulic Properties |
| title_full_unstemmed | Composite Sand–Clay Infrastructural Soil Fills: Characteristic Consolidation and Hydraulic Properties |
| title_short | Composite Sand–Clay Infrastructural Soil Fills: Characteristic Consolidation and Hydraulic Properties |
| title_sort | composite sand clay infrastructural soil fills characteristic consolidation and hydraulic properties |
| topic | sand-clay mixtures infrastructural soil fills consolidation characteristics hydraulic properties |
| url | https://dergipark.org.tr/en/download/article-file/3625989 |
| work_keys_str_mv | AT burcudıskaya compositesandclayinfrastructuralsoilfillscharacteristicconsolidationandhydraulicproperties AT tanaykarademir compositesandclayinfrastructuralsoilfillscharacteristicconsolidationandhydraulicproperties |