STABILIZATION OF DREDGED SOIL BY USING HYDRAULIC CEMENT (OPC)

Abstract

Dredged soil is a solid waste generated from the dredging of a river, having low bearing capacity and
high compressibility. Dredged material in huge quantity poses serious disposal and environmental problems all around
the area which puts pressure for its characterization. This material can be a valuable resource for many practical
purposes such as fill material, sub grade construction, etc. In this study soil samples at four different locations of a flood
channel were collected. Soil tests like gradation, specific gravity, consistency indexes, light compaction, unconfined
compressive strength, CBR and direct shear tests were performed. The results of four samples were compared and the
weakest soil sample was selected. The mechanical properties of the soil were improved using ordinary Portland cement
at varying percentages of 0%, 5%, 10% and 15% respectively. Compaction characteristics, Consistency limits, UCS and
DST values of the treated soil samples were studied. The UCS and DST values showed significant increase with
increasing cement percentage, also the P.L and L.L increased considerably.