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Experimental Investigation for Stabilization of Expansive Soil by Using Waste Materials—Eggshell Powder and Bagasse Ash
The poor strength and cyclical swell-shrink behaviour of expansive soil make it a problematic soil for civil engineers. Most foundation failures are commonly caused by these soils. Given the increasing need for infrastructure expansion, avoiding these soils for future construction may not be feasible. As such, it is advised to take strengthening measures for expansive soils before constructing any structure. In this study, we have explored the modification of expansive soil by adding eggshell powder and bagasse ash, both of which are waste materials, as stabilisers. A total of 24 groups of stabilised soil samples were prepared by incorporating varying proportions of eggshell powder and bagasse ash as stabilisers. With respect to the dry soil, ESP was added at weight ratios of 6%, 9%, 12%, and 15%, while BA was added at weight ratios of 4%, 6%, 8%, and 10%. The result showed that as the content of eggshell powder increased, there was a notable decrease observed in both the plastic and liquid limits. While the addition of ESP (12%) to the untreated soil sample resulted in a maximum reduction of both the plastic and liquid limits, respectively. In contrast, a rise in the BA concentration resulted in a rise in the plastic and liquid limits. At 4% BA, a maximum reduction in the plastic limit was observed. Furthermore, it was observed that the soil exhibited improved performance when treated with a combination of 15% ESP and 10% BA, representing the optimum percentage of the admixture. The combined use of eggshell powder (ESP) and bagasse ash (BA) admixture was found to be highly effective in enhancing the engineering properties of expansive foundational soil and strengthening the subgrade soil. Additionally, both eggshell powder and bagasse ash have the potential to be used not just for soil stabilisation purposes but also as construction materials.
Experimental Investigation for Stabilization of Expansive Soil by Using Waste Materials—Eggshell Powder and Bagasse Ash
The poor strength and cyclical swell-shrink behaviour of expansive soil make it a problematic soil for civil engineers. Most foundation failures are commonly caused by these soils. Given the increasing need for infrastructure expansion, avoiding these soils for future construction may not be feasible. As such, it is advised to take strengthening measures for expansive soils before constructing any structure. In this study, we have explored the modification of expansive soil by adding eggshell powder and bagasse ash, both of which are waste materials, as stabilisers. A total of 24 groups of stabilised soil samples were prepared by incorporating varying proportions of eggshell powder and bagasse ash as stabilisers. With respect to the dry soil, ESP was added at weight ratios of 6%, 9%, 12%, and 15%, while BA was added at weight ratios of 4%, 6%, 8%, and 10%. The result showed that as the content of eggshell powder increased, there was a notable decrease observed in both the plastic and liquid limits. While the addition of ESP (12%) to the untreated soil sample resulted in a maximum reduction of both the plastic and liquid limits, respectively. In contrast, a rise in the BA concentration resulted in a rise in the plastic and liquid limits. At 4% BA, a maximum reduction in the plastic limit was observed. Furthermore, it was observed that the soil exhibited improved performance when treated with a combination of 15% ESP and 10% BA, representing the optimum percentage of the admixture. The combined use of eggshell powder (ESP) and bagasse ash (BA) admixture was found to be highly effective in enhancing the engineering properties of expansive foundational soil and strengthening the subgrade soil. Additionally, both eggshell powder and bagasse ash have the potential to be used not just for soil stabilisation purposes but also as construction materials.
Experimental Investigation for Stabilization of Expansive Soil by Using Waste Materials—Eggshell Powder and Bagasse Ash
Lecture Notes in Civil Engineering
Nehdi, Moncef (Herausgeber:in) / Hung, Mo Kim (Herausgeber:in) / Venkataramana, Katta (Herausgeber:in) / Antony, Jiji (Herausgeber:in) / Kavitha, P. E. (Herausgeber:in) / Beena B R (Herausgeber:in) / Mishra, Moni (Autor:in) / Mekro, Ravino (Autor:in) / Jamir, Lensar (Autor:in) / Ete, Marjom (Autor:in)
International Conference on Structural Engineering and Construction Management ; 2023 ; Angamaly, India
03.11.2023
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Reutilization of Eggshell Powder for Improvement of Expansive Clayey Soil
Springer Verlag | 2023
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