Behavior of Modified Coastal Soil using Corex Slag and Hydrated Lime: A Laboratory Investigation

Faraz, Mohammed Islamuddin; Kumar, Rakesh

doi:10.2478/sjce-2024-0021

Abstract

The current study aims to determine the impact of lime and Corex slag on the strength, durability, and compaction properties of coastal soil from Gujarat, India. Twelve mixes of soil with Corex slag (0%, 10%, 20%, 30%, 40%, and 50%) and lime (2% and 4%) were added to determine their suitability as admixtures for stabilizing the subgrade layer. The Atterberg limits, free swelling index (FSI), compaction characteristics, California bearing ratio (CBR), durability, and unconfine compressive strength (UCS) of the stabilized soil with different curing days (0, 7, and 28) using standard Indian procedures were determined for the flexible pavement’s subgrade layer. The test results show that Corex slag positively affects the maximum dry density (MDD), optimum moisture content (OMC), and soil plasticity. Furthermore, the findings demonstrated that the strength properties and durability were effectively improved after stabilization. The strength of the stabilized coastal soil significantly improved as a result of the binding gel formation, according to examinations using scanning electron microscopy (SEM) and X-ray diffraction (XRD).

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Behavior of Modified Coastal Soil using Corex Slag and Hydrated Lime: A Laboratory Investigation

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