Transforming Expansive Clays FROM Waste TO Value: Dual Ash Stabilization Strategy FOR Augmenting Black Cotton Subgrade Soil Performance

Abstract

Due to its tendency to expand and shrink when exposed to moisture, black cotton soil is costly. As a result, its strength and other qualities are compromised. Stabilizers can be used to stabilize the black cotton soil in order to improve its weak characteristics.  The behavior of black cotton soil with various stabilizer types is erratic.  Soil stabilization is done for this reason in order to enhance the soil's engineering qualities.  One method for enhancing the engineering qualities of soil is soil stabilization. The engineering properties, including Atterberg's limits (liquid limit, plastic limit, and plasticity index), specific gravity, maximum dry density, optimal moisture content, unconfined compressive strength, and California bearing ratio, have been investigated in this study using a variety of materials, including fly ash and bagasse ash.  The aforementioned stabilizers (bagasse ash and fly ash) were applied in varying proportions.