Strength improvement of Black Cotton Soil Stabilized with Steel Slag and Rice Husk Ash

Abstract

The most difficult soil is the Black Cotton (BC) soil. Its expansive nature causes a number of issues for the foundations. This study aims to analyze numerous geotechnical characteristics of Black cotton (BC) soil - rice husk ash (RHA) mixed at varying proportions along with steel slag (SS). At various curing times, the impact of SS on compaction properties, related parameters like shear strength, California Bearing Ratio (CBR), and Unconfined Compressive Strength (UCS) value has been discussed. At a curing time of 28 days, it was discovered that a specimen named as 75SO10RHA15SS containing 75% BC soil, 10% RHA, and 15% SS revealed the highest UCS and CBR values.