Experimental Analysis and Assessment of LimeStabilized Peat Soil Performance Admixed with Sodium Bentonite

This study aims to evaluate the performance of lime-stabilized peat soil that has been enhanced with sodium bentonite. Peat soil, characterized by its rich organic content and poor load-bearing ability, poses significant challenges for construction projects. By incorporating sodium bentonite, a natural clay mineral known for its swelling and binding properties, the effectiveness of lime stabilization in improving the engineering properties of peat soil could be further enhanced. This study assesses the influence of varying levels of sodium bentonite on the mechanical and durability characteristics of lime-stabilized peat soil. Multiple laboratory tests were conducted on samples of lime-stabilized peat soil containing different proportions of sodium bentonite, including pH, Atterberg limits, unconfined compression tests, and microstructural assessments. The findings reveal the combined impact of adding 4% lime and 1% sodium bentonite to peat soil, such as increased strength, reduced compressibility, improved hydraulic conductivity, and enhanced durability. The results of this study contribute to the developments of sustainable and costeffective methods for stabilizing problematic peat soil. This provides critical information for engineers working on infrastructure development and environmental conservation projects.