Study Shear Strength Characteristics of Gypseous Sandy Soil Using Additives
The present study investigated the possibility of enhancing collapsible gypseous soil of Al-Qarma site (with relatively high gypsum content around 50%), which is located in Al-Anbar Governorate, using kaolinite and bentonite as additives. The essential idea is concentrated in mixing these additives...
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| Format: | Article |
| Language: | English |
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Unviversity of Technology- Iraq
2013-06-01
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| Series: | Engineering and Technology Journal |
| Subjects: | |
| Online Access: | https://etj.uotechnology.edu.iq/article_82128_0cdacf6b75a83e2468dfb06e0300a745.pdf |
| _version_ | 1797325591314169856 |
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| author | Hussein H. Karim T. Schanz Maha H. Nasif |
| author_facet | Hussein H. Karim T. Schanz Maha H. Nasif |
| author_sort | Hussein H. Karim |
| collection | DOAJ |
| description | The present study investigated the possibility of enhancing collapsible gypseous soil of Al-Qarma site (with relatively high gypsum content around 50%), which is located in Al-Anbar Governorate, using kaolinite and bentonite as additives. The essential idea is concentrated in mixing these additives with natural soil using different percentages (5, 10, 15 and 20% by soil dry weight) to investigate soil shear strength enhancement. The effect of such additives on soil shear strength parameters, cohesion (C) and angle of internal friction (Φ), and their behavior were studied using direct shear test. The results showed that shear strength parameters of soil sometimes increased and then decreased with increasing additives. Generally, higher shear strength parameters have been obtained from bentonite mixed soil than that of kaolinite mixed soil for the same percentages of additives. It was concluded that bentonite was much more effective in increasing C and reducing Φ than kaolinite. While, kaolinite was much more effective in reducing C than bentonite. It was also concluded that gypseous soil shear strength is improved using such additives (with only 5% kaolinite or with only 20% bentonite) which provide cohesion strength to the soil mass and also acts as a binder agent material. |
| first_indexed | 2024-03-08T06:11:36Z |
| format | Article |
| id | doaj.art-9452831d137d4a618f5482f04229af55 |
| institution | Directory Open Access Journal |
| issn | 1681-6900 2412-0758 |
| language | English |
| last_indexed | 2024-03-08T06:11:36Z |
| publishDate | 2013-06-01 |
| publisher | Unviversity of Technology- Iraq |
| record_format | Article |
| series | Engineering and Technology Journal |
| spelling | doaj.art-9452831d137d4a618f5482f04229af552024-02-04T17:35:37ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582013-06-013181431144610.30684/etj.31.8A182128Study Shear Strength Characteristics of Gypseous Sandy Soil Using AdditivesHussein H. KarimT. SchanzMaha H. NasifThe present study investigated the possibility of enhancing collapsible gypseous soil of Al-Qarma site (with relatively high gypsum content around 50%), which is located in Al-Anbar Governorate, using kaolinite and bentonite as additives. The essential idea is concentrated in mixing these additives with natural soil using different percentages (5, 10, 15 and 20% by soil dry weight) to investigate soil shear strength enhancement. The effect of such additives on soil shear strength parameters, cohesion (C) and angle of internal friction (Φ), and their behavior were studied using direct shear test. The results showed that shear strength parameters of soil sometimes increased and then decreased with increasing additives. Generally, higher shear strength parameters have been obtained from bentonite mixed soil than that of kaolinite mixed soil for the same percentages of additives. It was concluded that bentonite was much more effective in increasing C and reducing Φ than kaolinite. While, kaolinite was much more effective in reducing C than bentonite. It was also concluded that gypseous soil shear strength is improved using such additives (with only 5% kaolinite or with only 20% bentonite) which provide cohesion strength to the soil mass and also acts as a binder agent material.https://etj.uotechnology.edu.iq/article_82128_0cdacf6b75a83e2468dfb06e0300a745.pdfgypseous soilkaolinitebentoniteadditivesshear strength |
| spellingShingle | Hussein H. Karim T. Schanz Maha H. Nasif Study Shear Strength Characteristics of Gypseous Sandy Soil Using Additives Engineering and Technology Journal gypseous soil kaolinite bentonite additives shear strength |
| title | Study Shear Strength Characteristics of Gypseous Sandy Soil Using Additives |
| title_full | Study Shear Strength Characteristics of Gypseous Sandy Soil Using Additives |
| title_fullStr | Study Shear Strength Characteristics of Gypseous Sandy Soil Using Additives |
| title_full_unstemmed | Study Shear Strength Characteristics of Gypseous Sandy Soil Using Additives |
| title_short | Study Shear Strength Characteristics of Gypseous Sandy Soil Using Additives |
| title_sort | study shear strength characteristics of gypseous sandy soil using additives |
| topic | gypseous soil kaolinite bentonite additives shear strength |
| url | https://etj.uotechnology.edu.iq/article_82128_0cdacf6b75a83e2468dfb06e0300a745.pdf |
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