International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 01 | Jan 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 359 Comparative Study of Stabilization of Black Cotton Soil and Clay Soil using Bagasse Ash and Tyre Cord K. Mahendran 1 , Dr. M. Shahul Hameed 2 1 Asso. Prof. Dept. of Civil Engineering, P.S.R Engineering college, Anna University, Tamilnadu, India 2 Dean Research & HOD, Dept. of Civil Engineering, P.S.R Engineering college, Anna University, Tamilnadu, India ------------------------------------------------------------------------------***----------------------------------------------------------------------------- Abstract - The soil stabilization constitutes an increasingly important issue in the present civil engineering world. So the modern soil stabilization techniques are necessary to assure adequate stability, especially for weaker or wetter soils. The selected material should be both durability and for economically low cost. In this research the two expansive soils of black cotton and clay soil are stabilized by using bagasse ash and tyre cord material and compared their result. The tyre cord was varied from 0.5% to 4% , the bagasse ash was varied from 1% to 6% and the both materials was varied from 1% to 8% for each soils and unconfined compressive test was carried. The test result shows the optimum percentage of tyre cord 3% give the shear strength of 0.161 kg/cm2 for black cotton soil and 0.1985 kg/cm2 clay soil, the optimum percentage of bagasse ash 4% give the shear strength of 0.149 kg/cm2 for black cotton soil and 0.463 kg/cm2 for clay soil. The optimum percentage of combination of both materials 6% give the shear strength of 0.463 kg/cm2 for clay soil and 0.386 kg/cm2 for black cotton soil. The result shows the clay soil was more stable and high shear strength compared to the black cotton soil. Key Words: Soil Stabilization, Unconfined Compressive Strength, Bagasse Ash, Tyre Cord INTRODUCTION To study the physical and engineering properties of untreated soil with bagasse ash and tyre cord material. To evaluate the changes in strength characteristics of untreated and treated soil specimens by Compaction test, Unconfined Compressive Strength etc. Need and Scope: Improve the mechanical properties of Black Cotton Soil and Clay Soil. Improve structural stability. By improving the shear strength of soil by using bagasse ash and tyre cord. Improve the bearing capacity of soil by introducing the bagasse ash and tyre cord. Soil Stabilization: Soil stabilization is the alteration of one or more soil properties, by mechanical or chemical means, to create an improved soil material possessing the desired engineering properties. The process may include blending of soils to achieve a desired gradation or mixing of commercially available additives that may alter the gradation, texture or plasticity, or act as a binder for cementation of the soil Types of Soil Stabilization: The two frequently used methods of stabilizing soils are stabilization by compaction or stabilization by chemical additives. Mechanical Stabilization: Mechanical stabilization can be defined as a process of improving the stability and shear strength characteristics of the soil without altering the chemical properties of the soil. The main methods of mechanical stabilization can be categorized in to compaction, mixing or blending of two or more gradations, applying geo-reinforcement and mechanical remediation.