Paper
Geotechnical Properties of Shedi Soil Affected by Alkali Contamination
- Authors:
- Chittanahally Ramakrishnegowda; Ramakrishna Yaji; R Shivashankar; Puvvadi Venkata Sivapullaiah
- Abstract
- The paper brings out the effect of interaction of shedi soil containing both kaolinite and smectite minerals with alkali on various geotechnical properties such as the index properties, compaction characteristics, volume change behaviour, strength characteristics and hydraulic conductivity. It has been shown that though the plasticity index of soil decreases and optimum moisture content increases with increasing concentration of alkali content in the fluid. However the swell pressure and the compressibility of soil decrease. The shear strength of soil decreases essentially due to decrease in the cohesion of the soil particles. The hydraulic conductivity of the soil increases with higher concentrations of alkali solution. These changes in geotechnical properties of soil which are not consistent with changes in index properties are explained based on structural changes in soil particles due to alkali interaction.
- Keywords
- Alkali solution; Plasticity; Shear strength; Volume Change Behaviour
- StartPage
- 45
- EndPage
- 52
- Doi