PERFORMANCE ANALYSIS OF SOFT CLAY WITH RICE HUSK ASH & POLYPROPYLENE FIBERED

Abstract

The stabilization of soil entails the alteration of specific soil properties through the application of chemical, physical, or mechanical techniques, to enhance the engineering properties of the soil specimen. This study involved the utilization of polypropylene fiber and rice husk ash wastes to stabilize the soil samples, hence addressing the pressing concerns associated with waste management. In the current investigation, the incorporation of rice husk ash at different proportions, specifically 5% and 10%, along with the addition of 1% polypropylene fiber, was undertaken to enhance soil characteristics. Various laboratory experiments were conducted on soil samples, including the Free Swell Index, Atterberg Limit, Specific Gravity, Compaction, and Unconfined Compressive Strength tests. The results indicate a decrease in the free swell index, specific gravity, maximum dry density for both 5% and 10% rice husk ash, and plasticity index for 10% rice husk ash when compared to the soil without reinforcement. The findings indicate that the Liquid limit, Plastic limit, Optimum moisture content, and Unconfined compressive strength of soil are higher when reinforced with rice husk ash at both 5% and 10% concentrations. Additionally, the plasticity index of soil is raised when reinforced with 5% rice husk ash. The findings suggest that the incorporation of polypropylene fiber and rice husk ash may enhance some soil characteristics.