Stabilization of Black cotton soil using Fly ash

Expansive Black cotton clay soils are widely distributed worldwide, and a significant damage to infrastructure buildigs. It is common practice around the world stabilize black soil using fly ash improve strength of stabilized sub- base sub grade soil. Soil stabilization improvement or bearing capacity by controlled compaction, proportioning addition suitable admixtures stabilizers. The extremely hard when dry, but lose its fully in wet condition. In monsoon they guzzle water swell summer shrink on evaporation from there. Because high Swelling shrinkage characteristics has been challenge highway engineers.So this research paper used various properties natural soil.The objective engineering adding different percentage weight make it for construction. A series standard Proctor tests (for calculation MDD OMC) California Bearing Ratio (C.B.R) conducted both raw mixed with percentages (5%, 10%, 20%, 30%) weight. comparison between soil, performed .It found that suitably enhanced.