Abstract:

The soil found in the ocean bed is classified as marine soil. It can even be located onshore as well. The properties of marine soil depend significantly on its initial conditions. The properties of saturated marine soil differ significantly from moist soil and dry soil. Dredged Marine sample is uncommon type of clay and normally exists in soft consistency. In this study, Vizhinjam dredged soil is considered. The dredged soils are treated with different proportion of ricehusk ash and lime in order to obtain strength values Laboratory experiments to check the geotechnical properties of soil like hydrometer tests, proctor test, Atterbergs limit and UCC test were conducted. Organic content is also determined. The optimum amount of ricehusk ash and lime to be added is determined by unconfined compression tests. The results shows that RHA and lime when used together can improve the strength property of the dredged soil. Upon the addition of rice husk ash and lime, the UCC value increases.


Keywords: Dredged soil, ricehusk ash, lime, strength improvement.;