Geotechnical Characterization and Stabilization Performance of Lateritic Soil Treated with Cassava Peel Ash and Lime

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dc.contributor.authorBiliyamin Adeoye Ibitoye, Abdulrahman Aliyu Olayinka, Sulaiman Olayinka Subair and Yusuf Kabir Oluku
dc.date.accessioned2026-06-19T10:51:16Z
dc.date.available2026-06-19T10:51:16Z
dc.date.issued2026
dc.description.abstractAbstract This study evaluated the geotechnical characterization and stabilization performance of lateritic soils treated with cassava peel ash (CPA) and lime for pavement applications. Lateritic soil samples obtained from selected locations within the three senatorial districts of Kwara State, Nigeria, were subjected to laboratory tests including natural moisture content, specific gravity, particle size distribution, and Atterberg limits to determine their natural engineering properties. Chemical composition analysis was conducted to assess the pozzolanic potential of the cassava peel ash. Representative soil samples were subsequently stabilized using varying proportions of CPA–lime blends and tested for consistency characteristics, compaction behavior, and California Bearing Ratio (CBR). The natural soils were predominantly classified as A-7-5 materials under the American Association of State Highway and Transportation Officials classification system, indicating poor subgrade suitability in their untreated condition. The results revealed that stabilization with CPA and lime significantly reduced soil plasticity while improving compaction and bearing capacity characteristics. The optimum engineering performance was achieved at a blend ratio of 75% lime and 25% CPA. The study concluded that cassava peel ash–lime stabilization is an effective and sustainable approach for enhancing the engineering properties of lateritic soils for road pavement construction.
dc.identifier.urihttps://kwasuspace.kwasu.edu.ng/handle/123456789/7461
dc.language.isoen
dc.publisherNigerian Online Journal of Educational Sciences and Technology
dc.titleGeotechnical Characterization and Stabilization Performance of Lateritic Soil Treated with Cassava Peel Ash and Lime
dc.typeArticle
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