A LABORATORY STUDY ON THE CONSOLIDATION CHARACTERISTICS OF MARINE CLAY TREATED WITH CALCIUM CARBIDE POWDER AND ADDITIVES
Keywords:
Marine clay, chemical stabilisation, Calcium Carbide Powder, NH4Cl, KCl, FeCl3, Consolidation Characteristics.Abstract
Rapid Population growth results in scarcity of land for housing, commercial, industrial, transportation and infrastructure purpose. This necessitated the use of land, which has weak strata, where the geotechnical engineers are challenged by the presence of problematic soils with varied engineering properties. One of such soil is marine clay. Marine Clays are problematic soils all around the world and
especially in the regions where climate is arid or semi-arid. These soils are highly compressible soils suffering from low shear strength and high compressibility associated with movements of pavements and foundations may result in cracking and breaking of structures. Several methods are used to improve the engineering properties of marine clay. Among those methods, chemical stabilization is widely used. In this present study the consolidation characteristics i.e., coefficient of consolidation, compression index and rate
of consolidation of untreated and treated marine clay were determined by adding Calcium Carbide Powder as admixture and also with chemicals i.e. ammonium chloride, potassium chloride and ferric chloride.
