Effect of liquid polymer and Cement Kiln Dust (CKD) on Strength of fine-grained soil.

Soil stabilization is a common technique to increase the strength, durability and reduce the swell-shrink behaviour of foundation or subgrade soil in pavement and for improvement of soil in regions where small scale construction is to be laid. During manufacturing of cement a waste by product, known as cement kiln waste (CKD) is generated which accounts for 5-10% of the cement clinker production. So, using CKD as an admixture to improve the properties of soil involves economic and environmental advantages. Also, now days many stabilizers (e.g., e.g., solutions etc) are used in soil. In the present study, the use of cement kiln dust along with liquid polymer was used on fine grained soil classified as CL with varying proportions of CKD from 5% to 30% with each increment of 5% in the soil and liquid polymer was used in 0.5%,1%,2%,3%,4% of 20% CKD along with optimum value of CKD. A decrease in UCS value is significant with further addition after 3% liquid polymer in soil.