STABILIZATION OF BLACK COTTON SOIL BY USING WASTE MATERIAL FOR ROAD CONSTRUCTION

The stabilization of black cotton soil, which is known for its high swelling and shrinkage properties, is crucial for ensuring the durability and performance of road construction. This project investigates the use of waste materials such as granite powder, glass powder, lime, and rice husk to stabilize black cotton soil and enhance its engineering properties. The study focuses on the mix proportions of these waste materials to improve parameters like strength, plasticity, and compaction characteristics of the soil. Granite powder and glass powder, being fine powder are tested for their ability to reduce the plasticity index and improve workability, while lime serves as a binding agent to enhance soil cohesion. Rice husk, an agricultural by-product, is explored for its potential in reducing soil expansion. Laboratory tests including Plastic limit, liquid limit, specific gravity, sieve analysis, standard proctor test and California Bearing Ratio are conducted to assess the effectiveness of the waste materials.