ANALYSIS OF CLAYEY SOIL IMPROVEMENT AS SUBGRADE USING WHEAT HUSK ASH AND BASALT FIBER

Transportation provides a basic need for humankind. Throughout the dawn of time, people have traveled for food or pleasure. People have high expectations for transportation infrastructure since there is a strong correlation between a country's degree of development and the quality of its infrastructure. The creation of transportation systems that are analytically sound, economically sound, environmentally benign, socially credible, sustainable, and workable presents major challenges for today's civil engineers. Ground improvement technologies are becoming more and more popular as a result of traditional construction methods' shortcomings in the modern world. Access to an affordable road network is critical to the economic development of emerging countries such as India. In highway applications, a poor subgrade layer of the pavement requires a thicker pavement, which drives up pavement construction costs. Organic soils are not suitable for building work due to their low bearing capacity, high potential for swelling, and weak shear strength. These kinds of soils can be treated with compaction and stabilizing techniques. The main objective of this study is to enhance the geotechnical properties of soil by the efficient use of stabilization employing Wheat Husk Ash (WHA) and Basalt Fiber in varying amounts. The research employed three different amounts of Wheat Husk Ash (5%, 10%, and 15%) and Basalt Fiber (2%, 3%, and 4%). For the reinforced soil, compaction and an unconfined compressive test (UCS) were carried out. The trial's results showed that the soil had significantly increased in both shear and compressive strength. Key Words: Compaction test, CBR, UCS, WHA, Basalt Fiber