THE IMPROVEMENT OF GYPSUM SAND SOILS IN UNSATURATED CONDITIONS USING A MODIFIED OEDOMETER DEVICE
This work offers recommendations on the best percentages of CKD (Cement Kiln Dust) to use for soil stabilization to reduce compressibility problems 1%, 2%, 3%, 4%, and 5% for projects where gypsum sand soil is common. The results could lead to more sustainable and effective engineering methods in th...
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| Format: | Article |
| Language: | English |
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Faculty of Engineering, University of Kufa
2025-07-01
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| Series: | Mağallaẗ Al-kūfaẗ Al-handasiyyaẗ |
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| Online Access: | https://journal.uokufa.edu.iq/index.php/kje/article/view/15926 |
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| author | Mustafa M. Abdalhusein Rusul H. Almahmodi Hussein,H.H. Mohammed S. Mahmood |
| author_facet | Mustafa M. Abdalhusein Rusul H. Almahmodi Hussein,H.H. Mohammed S. Mahmood |
| author_sort | Mustafa M. Abdalhusein |
| collection | DOAJ |
| description | This work offers recommendations on the best percentages of CKD (Cement Kiln Dust) to use for soil stabilization to reduce compressibility problems 1%, 2%, 3%, 4%, and 5% for projects where gypsum sand soil is common. The results could lead to more sustainable and effective engineering methods in these areas. 22% of the soil analyzed came from Al-Najaf City in Iraq. Each of the four groups in this work underwent six tests: the first group operated in a saturated state without the use of a High Air Entry (HAE) ceramic disc; the second group used HAE to demonstrate the differences between the two groups; the third group used a matric suction (ψ) of 20 kPA; and the fourth group used the original matric suction of 100 kPa. The findings showed that the settlements were reduced with increasing matric suction and improved with the optimal value of CKD when the CKD additive was increased and the optimum values for the saturation state, unsaturation states with zero matric suction, unsaturation tests with ψ = 20 kPa, and unsaturation tests with ψ = 100 kPa were 2.8%, 2.9%, 3%, and 2%, respectively
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| format | Article |
| id | doaj-art-862e9c5bf45d4a36be87e0efa9c69947 |
| institution | Kabale University |
| issn | 2071-5528 2523-0018 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Faculty of Engineering, University of Kufa |
| record_format | Article |
| series | Mağallaẗ Al-kūfaẗ Al-handasiyyaẗ |
| spelling | doaj-art-862e9c5bf45d4a36be87e0efa9c699472025-08-20T04:01:58ZengFaculty of Engineering, University of KufaMağallaẗ Al-kūfaẗ Al-handasiyyaẗ2071-55282523-00182025-07-011603698110.30572/2018/KJE/160305THE IMPROVEMENT OF GYPSUM SAND SOILS IN UNSATURATED CONDITIONS USING A MODIFIED OEDOMETER DEVICEMustafa M. Abdalhusein0Rusul H. Almahmodi1Hussein,H.H.2Mohammed S. Mahmood3Department of Structures and Water Resources, Faculty of Engineering, University of Kufa, Iraq.Department of Civil Technologies, AL-Najaf Technical Institute, Al-Furat Al-Awsat Technical University, Iraq.Department of Civil Engineering, Faculty of Engineering, University of Warith Al-Anbiyaa, Karbala, Iraq.Department of Civil Engineering, Faculty of Engineering, University of Kufa, Iraq.This work offers recommendations on the best percentages of CKD (Cement Kiln Dust) to use for soil stabilization to reduce compressibility problems 1%, 2%, 3%, 4%, and 5% for projects where gypsum sand soil is common. The results could lead to more sustainable and effective engineering methods in these areas. 22% of the soil analyzed came from Al-Najaf City in Iraq. Each of the four groups in this work underwent six tests: the first group operated in a saturated state without the use of a High Air Entry (HAE) ceramic disc; the second group used HAE to demonstrate the differences between the two groups; the third group used a matric suction (ψ) of 20 kPA; and the fourth group used the original matric suction of 100 kPa. The findings showed that the settlements were reduced with increasing matric suction and improved with the optimal value of CKD when the CKD additive was increased and the optimum values for the saturation state, unsaturation states with zero matric suction, unsaturation tests with ψ = 20 kPa, and unsaturation tests with ψ = 100 kPa were 2.8%, 2.9%, 3%, and 2%, respectively https://journal.uokufa.edu.iq/index.php/kje/article/view/15926gypsum sand soilhae ceramic discckdsettlementmatric suction |
| spellingShingle | Mustafa M. Abdalhusein Rusul H. Almahmodi Hussein,H.H. Mohammed S. Mahmood THE IMPROVEMENT OF GYPSUM SAND SOILS IN UNSATURATED CONDITIONS USING A MODIFIED OEDOMETER DEVICE Mağallaẗ Al-kūfaẗ Al-handasiyyaẗ gypsum sand soil hae ceramic disc ckd settlement matric suction |
| title | THE IMPROVEMENT OF GYPSUM SAND SOILS IN UNSATURATED CONDITIONS USING A MODIFIED OEDOMETER DEVICE |
| title_full | THE IMPROVEMENT OF GYPSUM SAND SOILS IN UNSATURATED CONDITIONS USING A MODIFIED OEDOMETER DEVICE |
| title_fullStr | THE IMPROVEMENT OF GYPSUM SAND SOILS IN UNSATURATED CONDITIONS USING A MODIFIED OEDOMETER DEVICE |
| title_full_unstemmed | THE IMPROVEMENT OF GYPSUM SAND SOILS IN UNSATURATED CONDITIONS USING A MODIFIED OEDOMETER DEVICE |
| title_short | THE IMPROVEMENT OF GYPSUM SAND SOILS IN UNSATURATED CONDITIONS USING A MODIFIED OEDOMETER DEVICE |
| title_sort | improvement of gypsum sand soils in unsaturated conditions using a modified oedometer device |
| topic | gypsum sand soil hae ceramic disc ckd settlement matric suction |
| url | https://journal.uokufa.edu.iq/index.php/kje/article/view/15926 |
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