Effects of Shea Nutshell Ash on Physical Properties of Lateritic Soil

International Journal of Civil Engineering

© 2021 by SSRG - IJCE Journal

Volume 8 Issue 11

Year of Publication : 2021

Authors : Majoie Ronelyam Mbakbaye, Erick Kiplangat Ronoh, Isaac Fundi Sanewu

10.14445/23488352/IJCE-V8I11P101

How to Cite?

Majoie Ronelyam Mbakbaye, Erick Kiplangat Ronoh, Isaac Fundi Sanewu, "Effects of Shea Nutshell Ash on Physical Properties of Lateritic Soil," SSRG International Journal of Civil Engineering, vol. 8,  no. 11, pp. 1-6, 2021. Crossref, https://doi.org/10.14445/23488352/IJCE-V8I11P101

Abstract:

This study focused on examining the effects of Shea nutshell ash (SNSA), derived from the calcination of Shea nutshell (an agro-based waste) as a partial replacement for cement on the stabilization of lateritic soils for the production of interlocking earth blocks. The optimum percentage of cement to stabilize the lateritic soil was partially replaced by SNSA from 0 to 6% by mass with a step of 2. The effects of SNSA on Atterberg limits, maximum dry density and optimum moisture content of Lateritic Soil were evaluated. The results showed that the shrinkage decreased by 12.6 % with increasing SNSA content and the plasticity index decreased by 8.43 % up to 4 % of SNSA before increasing with 6% of SNSA. The maximum dry density and optimum moisture content increased by 11.62 % and 3.16 %, respectively with increasing SNSA content. Based on these results, stabilization of lateritic soil with SNSA, in addition to being affordable and environmentally friendly, improved the physical properties of the soil for use in construction works.

Keywords:

Shea nutshell ash, lateritic soil, Atterberg limits, maximum dry density, optimal moisture content.

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