SUSTAINABLE SOIL STABILIZATION USING GUAR GUM BIOPOLYMER

Enhancing the geotechnical properties of soils is essential for improving ground performance in engineering applications. Traditional methods have been widely used, such as chemical stabilization, dewatering, natural and synthetic reinforcements, and drainage systems. Among these, chemical stabilization with cementitious additives like cement and lime is particularly effective. However, this approach raises significant environmental concerns, including permanently altering soil ecosystems and high carbon dioxide emissions during production. In response to these challenges, biopolymers such as guar gum have emerged as promising alternatives due to their biodegradability, non-toxicity, and low environmental impact. This study investigates the stabilization of sandy soils from Hungary using varying ratios of guar gum. The research aims to assess the potential of biopolymers as sustainable soil stabilizers by examining their impact on key geotechnical properties. Shear box tests were conducted to determine shear strength parameters to evaluate the performance of biopolymer-treated soils, while oedometer tests were used to measure compressibility. This study contributes to the growing body of knowledge on sustainable soil stabilization methods and highlights the potential of biopolymers to reduce the environmental footprint of geotechnical engineering practices.