Influence of Terrazyme on Geotechnical Properties of Lime Treated Black Cotton Soil

The present paper reports the results of laboratory investigation on effect of terrazyme (TZ) on lime treated black cotton (BC) soil. The soil modified with 2%, 4%, 6%, 8% and 10% of lime is studied to get the optimum content of lime. It is then treated with various different dosages of terrazyme (TZ). Atterberg limits, Unconfined Compressive Strength (UCS), California Bearing Ratio (CBR) and Free Swell Index (FSI) tests were conducted. The liquid limit of the soil lime mixture treated with different dosages of TZ decreases with curing period while the plastic limit and shrinkage limit increases with curing period. UCS of treated black cotton soil continuously increases with curing.CBR of black cotton soil was conducted for optimum dosages of lime and TZ soil mixture. Results show that significance increases in CBR.