Evaluating the Geotechnical Properties of Stabilized Problematic Soil by Utilizing Reed Ash and Lime Mixture
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Abstract
Stabilization of problematic soil poses a significant challenge in civil engineering projects, especially in regions with prevalent soft clay soils. This study was carried out to study the impact of using a blend of reed ash and lime on improving and stabilizing problematic soil. A sample of soil was obtained from a location in the south of Iraq, specifically in Al-Muthanna Governorate. The treatment involved adding different proportions of reed ash (3%, 5%, 7%, and 9.0% of the soil's dry weight) along with 5% lime, which was determined as the optimal percentage based on previous research. Various laboratory tests were conducted to assess the characteristics of the treated soil, including compaction and unconfined compressive strength (UCS). The findings indicated a notable enhancement in UCS and the maximum dry density (MDD). It was observed that UCS and MDD increased with increasing the reed ash and lime mixture proportion, reaching an optimal level. Beyond this percentage, the strength started to decline. It was found that the incorporation of lime and reed ash (5% lime and 7% reed ash) into the treated soil significantly improved its strength, up to about 10 times compared to untreated soil after 28 days of curing. This approach offers additional benefits, such as reducing environmental pollution by decreasing CO2 emissions during phases of production and providing cost savings because of the affordability of the materials used.
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References
Bell FG. Lime Stabilization of Clay Minerals and Soils. Engineering Geology 1996; 42(4):223-237. DOI: https://doi.org/10.1016/0013-7952(96)00028-2
Makusa G. Soil Stabilization Methods and Materials. Ph.D. Thesis. Luleå University of Technology; Luleå, Sweden: 2009.
Nordin NDB. The Potential of Cement Stabilization in Soft Soil. Bachelor Thesis. Universiti Malaysia Pahang; Malaysia: 2010.
Taha MR. Geotechnical Properties of Soil-Ball Milled Soil Mixtures. In Nanotechnology in Construction 3: Proceedings of the NICOM3 (pp. 377-382). Berlin, Heidelberg: Springer ,2009. DOI: https://doi.org/10.1007/978-3-642-00980-8_51
Makusa G, Mácsik J, Holm G, Knutsson S. Laboratory Test Study on the Effect of Freeze–Thaw Cycles on Strength and Hydraulic Conductivity of High Water Content Stabilized Dredged Sediments. Canadian Geotechnical Journal 2016; 53(6): 1038-1045. DOI: https://doi.org/10.1139/cgj-2015-0295
Cristelo N, Glendinning S, Fernandes L, Pinto AT. Effects of Alkaline-Activated Fly Ash and Portland Cement on Soft Soil Stabilisation. Acta Geotechnica 2013; 8: 395-405. DOI: https://doi.org/10.1007/s11440-012-0200-9
Patel A. Soil Stabilization, in Geotechnical Investigations and Improvement of Ground Conditions. 1st ed., United Kingdom: Woodhead Publishing Series in Civil and Structural Engineering; 2019. DOI: https://doi.org/10.1016/B978-0-12-817048-9.00003-2
Bowles JE. Engineering Properties of Soils and their Measurement. McGraw-Hill, 1992.
Al-Rawas AA, Goosen MF. Expansive Soils: Recent Advances in Characterization and Treatment. London: CRC Press, 2006. DOI: https://doi.org/10.1201/9780203968079
Sherwood PT. Soil Stabilization with Cement and Lime. Inproceedings; 1993.
Mahdy R, Al-Busaltan S. Investigating the Physical Properties of Reed Fly Ash Modified Asphalt Binder. Kerbala Journal for Engineering Sciences 2020; (1): 1-17.
Karim HH, Samueel ZW, Ahmed SF. Geotechnical Properties of Soft Clay Soil Stabilized by Reed Ashes. 2nd International Conference on Buildings, Construction and Environmental Engineering p. 154, 2015.
Anlage. Sustainable Use of Reed Biomass. in ReedBASE. Regional Conference on Internationally Important Azov – Black Sea Coastal Wetlands 2018; Odesa, Ukraine. ReedBASE: p. 1-13.
Link S, Yrjas P, Lindberg D, Trikkel A. Characterization of Ash Melting of Reed and Wheat Straw Blend. ACS Omega 2022; 7(2): 2137-2146. DOI: https://doi.org/10.1021/acsomega.1c05087
Yarbaşı N, Kalkan E, Akbulut S. Modification of the Geotechnical Properties, as Influenced by Freeze–Thaw, of Granular Soils with Waste Additives. Cold Regions Science and Technology 2007; 48(1): 44-54. DOI: https://doi.org/10.1016/j.coldregions.2006.09.009