Optimization of Copper Slag and Fly Ash for Soil Stabilization

Jyoti S.Trivedi, Assistant Professor, M-Tech(CPM) CEPT University, Faculty of Technology, Navrangpura,Ahmedabad, Dr.Rakesh Kumar, Associate Professor, Civil Engineering Department, SVNIT Surat.

Sub-grade soil stabilization is one of the primary and major processes in the construction of any highway. The aim of this research paper is to formulate a model to predict variation in the values of CBR of the Sub-grade Soil with the addition of specific proportions of Fly Ash and Copper Slag. Tests were performed on combination of soil with fine copper slag coarse copper slag and fly ash the input values for this study were those which directly affect the CBR values i.e., directly proportional to CBR. It includes Liquid Limit (LL), Plasticity Index (PI), Optimum Moisture Content (OMC) & Fraction of Fly Ash and copper slag. This model will help all types of agencies involved in road construction like NHAI, Infrastructure Developers and Construction Contracting Organizations to pre-determine the soil stabilization achieved due to fly ash and copper slag for a particular type of sub-grade soil.

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NBM&CW December 2015
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