THE IMPROVEMENT OF GYPSUM SAND SOILS IN UNSATURATED CONDITIONS USING A MODIFIED OEDOMETER DEVICE
DOI:
https://doi.org/10.30572/2018/KJE/160305Keywords:
Gypsum Sand Soil, HAE Ceramic Disc, CKD, Settlement, Matric SuctionAbstract
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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Abdal Husain, M., Akhtarpour, A., Almahmodi, R., Mahmood, M.S. (2022a) 'Investigation of Shear Strength Parameters for Gypseous Soils Using a Modified Apparatus of Triaxial Test', Conference: ICGECI 2022: Current Trends in Geotechnical Engineering and ConstructionAt: Iraq. https://doi.org/DOI: 10.1007/978-981-19-7358-1_27
Abdal Husain, M., Akhtarpour, A., Mahmood, M.S. (2018) 'Wetting Challenges on the Gypsiferous Soils', 4th International congress on Sustainable Development.
Abdal Husain, M., Akhtarpour, A., Mahmood, M.S. (2019), Effect of Soaking on Unsaturated Gypseous Sand Soils', International Journal of Civil Engineering and Technology (IJCIET) 10(5), 550–558.
Abdal Husain, M., Akhtarpour, A., Mahmood, M.S. (2022b) 'Unsaturated behaviour of gypseous sand soils using a modified triaxial test apparatus', International Journal of Geotechnical Engineering 16(21). https://doi.org/DOI: 10.1080/19386362.2022.2033483
Abdal Husain, M., Mahmood, M.S., Saleh, M.S., Almahmodi, R. (2024) 'Reliability of Soil Water Characteristics Curve under Different Normal Stresses for Unsaturated Sand', Fifth International Scientific Conference of Alkafeel University (ISCKU 2024).
Abdalhusein, M.M., Akhtarpour, A., Mahmood, M.S. (2019) 'Effect of Wetting Process with Presence of Matric Suction on Unsaturated Gypseous Sand Soils', Journal of Southwest Jiaotong University. https://doi.org/DOI: 10.35741/issn.0258-2724.54.5.3
Abdulameer AlNaddaf, H.Q., Kouzegaran, S., Fattah, M.Y., Akhtarpour, A. (2024) 'Effects of Cement Treatment on Water Retention Behavior and Collapse Potential of Gypseous Soils: Experimental Investigation and Prediction Models', Advances in Civil Engineering 2024, 6637911. https://doi.org/10.1155/2024/6637911
Akhtarpour, A., Mahmood, M.S., Almahmodi, R., Abdalhusein, M.M. (2018) 'Settlement of Gypseous Sand Upon Short-Term Wetting', International Congress on Engineering and Architecture, Alanya-Turkey 14(18).
Al-Almahmodi R. (2022) 'Experimental Investigation of Time Dependent Unsaturated Behavior of Iraqi Gypsum Sand Soils using Oedometer Tests', Ph.D. Dissertation. Ferdwosi University of Mashhad, Iran.
Al-Gharbawi, A.S.A., Fattah, M.Y., Mahmood, M.R. (2022) 'Effect of Carbonation on the Collapse Potential of Magnesium Oxide Treated Gypseous Soil', International Journal of Engineering 35, 706–714. https://doi.org/10.5829/ije.2022.35.04A.10
Almahmodi, R., Abdal Husain, M., Akhtarpour, A., Mahmood, M.S. (2022) 'Characterization of collapsible gypsum sand soil with the presence of matric suction using a modified odometer apparatus', The International Journal of Advanced Manufacturing Technology. https://doi.org/DOI: 10.1007/s00170-022-10146-x
Al-Saoudi, N.K.S., Mahmood, M.S., Abdal Husain, M. (2014) 'Infiltration Characteristics in Agriculture Area of Bahr Al-Najaf', Journal of Babylon University/Engineering Sciences 22(4).
Altameemi, Z.A., Shafiqu, Q.S.M., Al-Taie, A.J. (2023) 'Evaluation of Tikrit Dune Sand Soil Enhanced with CKD', International Conference on Geotechnical Engineering and Energetic-Iraq (ICGEE 2023) 427. https://doi.org/10.1051/e3sconf/202342701008
Fazeli, A.R., Johari, A. (2014) 'Collapsible soils improvement using nano clay, A case study', 8th National Congress on Civil Engineering by Babol Noshirvani University of Technology 5(7).
Fredlund, D.G., Rahardjo, H. (1993) 'Soil Mechanics for Unsaturated Soils', John Wiley & Sons.
Mahmood, M.S. (2007) 'Geotechnical Properties of Al-Najaf City Soil with Emphasis on the Infiltration and Strength Characteristics', Ph.D. Dissertation, Building and Construction Dept., University of Technology, Baghdad, Iraq.
Mahmood, M.S., Akhtarpour, A., Almahmodi, R., Abdal Husain, M. (2020) 'Settlement assessment of gypseous sand after time-based soaking', IOP Conf. Series: Materials Science and Engineering. 737. https://doi.org/doi:10.1088/1757-899X/737/1/012080.
Nadi Yazdi, A., Akhtarpour, A., Abdal Husain, M., Baradaran, M.S. (2023) 'Experimental Investigation of the Volume Change of a Swelling Clay and Its Improvement', Transportation Infrastructure Geotechnology. https://doi.org/DOI: 10.1007/s40515-023-00315-0
Obead, I.H., Fattah, M.Y., Omran, H.A. (2023) 'Role of Soluble Materials on the Hydro-mechanical Properties of Collapsible Gypseous Soil', Transportation Infrastructure Geotechnology 10, 1126–1144. https://doi.org/10.1007/s40515-022-00257-z
Razouki, S.S., Al-Azawi, M.S. (2003) 'Long–term soaking effect onstrength and deformation characteristics of a gypsiferous subgradesoil', Engineering Journal of the University of Qatar 16, 49–60.
Standard Method of Test for Sieve Analysis of Fine and Coarse Aggregates AASHTO DESIGNATION: T 27-99l (ASTM DESIGNATION: C 136-96a). ASTM C136.
Standard Test Method for Density and Unit Weight of Soil in Place by the Sand-Cone Method. ASTM D1556-00.
Standard Test Methods for Chemical Analysis of Limestone, Quicklime, and Hydrated Lime1. ASTM C 25 – 99.
Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Standard Effort (12,400 ft-lbf/ft3(600 kN-m/m3))1. ASTM D698-00a.
Standard Test Methods for Specific Gravity of Soil Solids by Water Pycnometer1. ASTM D854-14.
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Copyright (c) 2024 Mustafa Abdalhussein, Dr.Rusul H. Almahmodi, Dr.Hussein,H. H., Dr.Mohammed Shakir Mahmood
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