A Study on Stabilization of Marine Dredged Soil Using Quarry Dust

In India large quantity of marine sediments is dredged from harbors and seaports for construction of the marine structures and for maintenance of the shipping channels. The dredged soil requires large area for its disposal. It is recognized that the offshore dumping of dredged soil causes disruption to the aquatic environment. The marine dredge soil cannot be used in the valuable construction process because it exhibits properties such as low shear strength, high natural water content and high compressibility. This paper aims to reuse the dredged marine soil as a sustainable material which is economical for the construction activities. Attempts were made to stabilize the dredged soil for the different applications such as embankment construction, road construction and for landfill. This study investigates the potential reuse of the dredged soil for the road construction. This paper describes a study to solidify the dredged marine sediment by using quarry dust. Quarry dust is a waste product generated from the aggregate production could replace some proportion of soil for the improvement of geophysical properties of the soil. This project made an attempt to evaluate the effectiveness of using quarry dust in modifying the properties of marine sediments, by the means of laboratory tests to assess the compatibility of modifying the marine dredge soil as a construction material for the road construction.