Abstract
Stabilization of Expansive Soil Using Wheat Husk Ash and Granulated Blast Furnace Slag
Highlights
Expansive soils, well-known as Black Cotton Soils in India, occupy about one-fifth of land area of the country
Black Cotton Soils are residual deposits formed from basalt or trap rocks
Some of the stabilization process can be studied as follows: In India, 20% of surface deposits are covered with expansive soils
Summary
Well-known as Black Cotton Soils in India, occupy about one-fifth of land area of the country. Expansive soil contain significant amount of montmorillonite material These soils are very hard in dry state but lose their load carrying capacity when once they are comes in contact with water. They have high shrinkage and swelling characteristics. The environment includes the stress system, the chemistry of pore water in the system, the seasonal variations in ground water table with consequent changes in natural moisture content and temperature variations. These swelling and shrinkage properties have made the soil unsuitable for civil engineering purposes either as foundation or embankment material
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