IMPROVEMENT OF SHEAR STRENGTH PARAMETERS OF MODEL ORGANIC SOILS
The characteristics of organic soil are low permeability, low shear strength, and high compressibility, therefore organic soil has to be improved before any engineering works can commence. In this study, dry kaolinite is used as a clay mineral and fresh reed as an organic material for different p...
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| Format: | Article |
| Language: | Arabic |
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Mustansiriyah University/College of Engineering
2016-09-01
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| Series: | Journal of Engineering and Sustainable Development |
| Subjects: | |
| Online Access: | https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/731 |
| _version_ | 1798022955204083712 |
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| author | Adel Hameed Majeed Madhat Shakir Al-Soud Zainab Hadi Sadiq |
| author_facet | Adel Hameed Majeed Madhat Shakir Al-Soud Zainab Hadi Sadiq |
| author_sort | Adel Hameed Majeed |
| collection | DOAJ |
| description |
The characteristics of organic soil are low permeability, low shear strength, and high compressibility, therefore organic soil has to be improved before any engineering works can commence. In this study, dry kaolinite is used as a clay mineral and fresh reed as an organic material for different percentages (0%, 2%, 5%, 8%, 12%, and 20%) by dry weight. Lime is used as a treatment material for different percentages (0%, 3%, 6%, and 9%) by dry weight. The experimental work includes a series of compaction and direct shear tests conducted on 48 samples. The effect of the addition of lime on shear strength parameters of non-decomposed and decomposed model organic soil was studied. The results showed that the cohesion values (c) increase with increasing organic content up to 5% for non-decomposed samples and up to 7.0% for decomposed samples while the angle of internal friction (φ) increases with the increase in organic content for both decomposed and non-decomposed samples. Also use of lime has increased the angle of internal friction of soil, especially when used within the range of (0-3) % lime content.
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| first_indexed | 2024-04-11T17:38:22Z |
| format | Article |
| id | doaj.art-f8283699612d43c29b17b2f4844b8001 |
| institution | Directory Open Access Journal |
| issn | 2520-0917 2520-0925 |
| language | Arabic |
| last_indexed | 2024-04-11T17:38:22Z |
| publishDate | 2016-09-01 |
| publisher | Mustansiriyah University/College of Engineering |
| record_format | Article |
| series | Journal of Engineering and Sustainable Development |
| spelling | doaj.art-f8283699612d43c29b17b2f4844b80012022-12-22T04:11:33ZaraMustansiriyah University/College of EngineeringJournal of Engineering and Sustainable Development2520-09172520-09252016-09-01205IMPROVEMENT OF SHEAR STRENGTH PARAMETERS OF MODEL ORGANIC SOILSAdel Hameed Majeed0Madhat Shakir Al-Soud1Zainab Hadi Sadiq2Civil Engineering Department, Mustansiriyah University, Baghdad, IraqCivil Engineering Department, Mustansiriyah University, Baghdad, IraqCivil Engineering Department, Mustansiriyah University, Baghdad, Iraq The characteristics of organic soil are low permeability, low shear strength, and high compressibility, therefore organic soil has to be improved before any engineering works can commence. In this study, dry kaolinite is used as a clay mineral and fresh reed as an organic material for different percentages (0%, 2%, 5%, 8%, 12%, and 20%) by dry weight. Lime is used as a treatment material for different percentages (0%, 3%, 6%, and 9%) by dry weight. The experimental work includes a series of compaction and direct shear tests conducted on 48 samples. The effect of the addition of lime on shear strength parameters of non-decomposed and decomposed model organic soil was studied. The results showed that the cohesion values (c) increase with increasing organic content up to 5% for non-decomposed samples and up to 7.0% for decomposed samples while the angle of internal friction (φ) increases with the increase in organic content for both decomposed and non-decomposed samples. Also use of lime has increased the angle of internal friction of soil, especially when used within the range of (0-3) % lime content. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/731organic contentshear strengthcohesionangle of internal frictionlime |
| spellingShingle | Adel Hameed Majeed Madhat Shakir Al-Soud Zainab Hadi Sadiq IMPROVEMENT OF SHEAR STRENGTH PARAMETERS OF MODEL ORGANIC SOILS Journal of Engineering and Sustainable Development organic content shear strength cohesion angle of internal friction lime |
| title | IMPROVEMENT OF SHEAR STRENGTH PARAMETERS OF MODEL ORGANIC SOILS |
| title_full | IMPROVEMENT OF SHEAR STRENGTH PARAMETERS OF MODEL ORGANIC SOILS |
| title_fullStr | IMPROVEMENT OF SHEAR STRENGTH PARAMETERS OF MODEL ORGANIC SOILS |
| title_full_unstemmed | IMPROVEMENT OF SHEAR STRENGTH PARAMETERS OF MODEL ORGANIC SOILS |
| title_short | IMPROVEMENT OF SHEAR STRENGTH PARAMETERS OF MODEL ORGANIC SOILS |
| title_sort | improvement of shear strength parameters of model organic soils |
| topic | organic content shear strength cohesion angle of internal friction lime |
| url | https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/731 |
| work_keys_str_mv | AT adelhameedmajeed improvementofshearstrengthparametersofmodelorganicsoils AT madhatshakiralsoud improvementofshearstrengthparametersofmodelorganicsoils AT zainabhadisadiq improvementofshearstrengthparametersofmodelorganicsoils |