Investigation on Geotecnical Properties of Waste Dumpsite Soil and Strength Improvement by Using Sugarcane Bagasse Ash (Scba) as Stabilizer

The swift rise in waste production has resulted in the establishment of dumpsites, which greatly affect the geotechnical characteristics of the nearby soil. This research examines the geotechnical properties of soil from waste dumpsites and evaluates the ability of Sugarcane Bagasse Ash (SCBA) as a stabilizing material to enhance its strength. Multiple laboratory assessments, such as particle size distribution, Atterberg limits, compaction, unconfined compressive strength (UCS), and California Bearing Ratio (CBR), were performed to assess the engineering characteristics of the soil prior to and following stabilization. The findings reveal that soil from untreated dumpsites shows low strength and high compressibility, rendering it inadequate for construction use. Nonetheless, the addition of SCBA in different ratios led to notable enhancements regarding higher bearing capacity, lower plasticity index, and improved shear strength. The results indicate that SCBA can function as an environmentally friendly and economical soil stabilizer, encouraging sustainable waste management and enhancing soil properties for construction use.