A study on Soil Stabilization using Cement and Fly Ash

摘要

Improvement of soil in foundation is a major challenge in Civil Engineering. Structures built on black cotton soils may be damaged due to high swelling and shrinkage characteristics of this soil with variation of water content. Black cotton soil is an expansive soil which loses its strength in presence of water. The soil properties can be improved by using methods such as mechanical stabilization, chemical stabilization, grouting using geotextiles, using admixtures etc. The present paper is an attempt to study the effectiveness of cement and fly-ash as an admixture to improve the strength and durability of black cotton soil along with an impact on its dry density. The test results show that the presence of 50% cement, the shrinkage limit is increases by 8.75% to 11.02% when compared to 50% of fly-ash in black cotton soil.