Abstract

In India, black cotton soil forms to be major soil deposits. They have been found to be the most problematic from engineering considerations since they exhibit swelling and shrinking when exposed to changes in moisture content. Vitrified tile sludge (VTS) is a waste material obtained during tile production and can be efficient in stabilizing embankments, soft soils, highway subgrade and other geotechnical application areas. High embankment slope has been stabilized using VTS as stabilizer. VTS was mixed by dry weight to soil with varying percentages of 0, 10, 20, 30 and 40% for conducting index properties, compaction characteristics, permeability, shear strength, consolidation and California bearing ratio tests. The experimental results indicate that the optimum VTS content was found to be 30%. The slope stability analysis was carried out for un-stabilized and stabilized embankment using Geo-Studio software. Slope stability is analysed for the high embankment of stabilized black cotton soil by taking its characteristics as input such as cohesion (c), angle of internal friction (ϕ) and maximum dry unit weight. The factor of safety of stabilized soil is more than minimum value as prescribed [1].

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