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Soil is known of their geotechnical properties and suitability as base, sub-based and sub-grade materials for road construction with the increase in population reduce the land availability. In current situation there is increasingly more development of structures and other structural building structures must be completed on less strength or poor soil. Black cotton soil is found in Madhya Pradesh, Karnataka, Maharashtra Andhra Pradesh & Tamilnadu covering an area of about 3.0 lakh sq. km in our nation. Black cotton soil is one of the largest soil stores of India, so for the reason need to increase its geotechnical properties and make it comfortable for the development reason. In pavement surface causes problems like cracking, rutting, patching, potholes and detoriation in the pavement surface. The development on black cotton soil (expansive soil) has consistently been a giving tough task for the specialists as the Road & structure laying on black cotton soil breaks without any notice. Stabilization of soil by GGBS couldn't just take care of the issue of appropriate stabilization of black cotton soil, yet in addition settle the issue of removal of a modern waste for example GGBS. The properties of black cotton soil can be modified by stabilizing the soil with the use of additives or stabilizers like Lime (6%), GGBS (30%) & Nano silica (0.3%, 0.6% & 0.9%). There is increase in various geotechnical properties like liquid limit, and plastic limit, compaction characteristics, unconfined compressive strength, CBR values and swelling pressure were determined. An experimental investigation is carried out to study the influence of admixture in soil with respect to the strength characteristics. In this comparative study laboratory tests such as Atterberg’s limit, Compaction test, swelling index and California Bearing Ratio (CBR)& Unconfined compressive strength (UCS)test were carried out for black cotton soil.

Stabilization of Black Cotton Soil by Using GGBS, Lime and Nano-Silica