Effect of Wood Ash as a Partial Replacement of Lime in the Stabilisation of Laterite Soil for Pavement Layers

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dc.contributor.authorOdongo, D.
dc.contributor.authorOtyama, L.J.
dc.contributor.authorJjuuko, S.
dc.contributor.authorKalumba, D.
dc.date.accessioned2023-02-16T15:14:05Z
dc.date.available2023-02-16T15:14:05Z
dc.date.issued2019
dc.description.abstractThis research considered the use of wood ash (WA) as a partial replacement of lime in stabilisation of laterite soil for pavement layers. The study investigated the physical properties and chemical composition of wood ash and laterite soil sample. The results showed that WA is a good pozzolan with combined SiO2, Al2O3 and Fe2O3 of 56.34% exceeding the minimum requirement of 50%. Laterite soil was categorised as Clayey Gravel with Sand, A-2-7(1), using the AASHTO classification system. The Initial Consumption of Lime of the soil sample, from the pH tests, was determined as 4%. The 4% lime content was gradually substituted with appropriate amounts of WA in proportions of 0%, 10%, 20%, 30%, 40% and 50% from which the geotechnical properties of the soil-lime-WA mixtures were investigated. The index and strength parameters of the laterite soil improved substantially. The results support the idea of making use of on-site materials and thus lowering construction costs. At the same time, the rapid fill-up rate of landfills would be solved.en_US
dc.identifier.citationOdongo, D., Otyama, L., Jjuuko, S., & Kalumba, D. (2019). Effect of wood ash as a partial replacement of lime in the stabilisation of laterite soil for pavement layers. In Proceedings of the 17th African Regional Conference on Soil Mechanics and Geotechnical Engineering. Cape Town (pp. 751-756).en_US
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/7838
dc.language.isoenen_US
dc.publisherCape Townen_US
dc.subjectwood ashen_US
dc.subjectlimeen_US
dc.subjectlaterite soilen_US
dc.subjectpavement layersen_US
dc.titleEffect of Wood Ash as a Partial Replacement of Lime in the Stabilisation of Laterite Soil for Pavement Layersen_US
dc.typeArticleen_US
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