Effect of Enzyme-Based Soil Stabilization: A Review

International Journal of Civil Engineering

© 2024 by SSRG - IJCE Journal

Volume 11 Issue 12

Year of Publication : 2024

Authors : Ajanta Kalita, Nisha K. Singh, Dinken Paksok, Kunchok Tashi

10.14445/23488352/IJCE-V11I12P109

How to Cite?

Ajanta Kalita, Nisha K. Singh, Dinken Paksok, Kunchok Tashi, "Effect of Enzyme-Based Soil Stabilization: A Review," SSRG International Journal of Civil Engineering, vol. 11,  no. 12, pp. 94-101, 2024. Crossref, https://doi.org/10.14445/23488352/IJCE-V11I12P109

Abstract:

Soil stabilization is crucial to modern construction and infrastructure development. Among different stabilizers, using enzymes is one of the alternatives to improve soil stability and offer a sustainable alternative to traditional soil stabilization methods. In the present study, enzyme-based soil stabilization techniques have been studied using various enzymes, and it was found that the enzymes are effective in improving the strength of the soil. Terrazyme, the most common, is very effective in all soil types. It increases the cohesion of sandy soils, increases slope stability, mitigates the swelling and shrinkage of clayey soils, decreases Optimum Moisture Content, increases Maximum Dry Density, and improves California Bearing Ratio and Unconfined compressive strength (UCS). The study shows that Bio-enzymatic improves UCS strength up to 4.5 times and shear strength to 104.32% to 463.50%, reducing soil permeability by 0.4 to 0.16 times than the parent strength. It increases the strength through particle aggregation and cementation, forming calcium silicate hydrate and improving soil properties. Enzymes are natural, non-toxic, and biodegradable biocatalysts, making them an environmentally sustainable choice to enhance their strength and durability. The findings in this study represented sustainable solutions for soil stabilization, which engineers or researchers can use for future development and construction.

Keywords:

Enzyme, Terrazyme, Soil stabilization, Unconfined Compressive Strength, Agriculture.

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