REGIONAL NORMALIZED EMPIRICAL CORRELATIONS FOR THE COMPRESSION INDEX (Cc) OF SOIL – A CRITICAL OVERVIEW

Laboratory one dimensional consolidation test is used to find out one of the important consolidation parameter of cohesive soils i.e., compression index (Cc) and, which plays a pivotal role in the design aspect of all underground structures based on settlement criteria. Several researchers have focused to correlate compression index with various index properties in terms of single and multiple regressions on regional soils. These correlations are not generalized and have some limitations due to varying soil properties. Since the existence of soil is different from place to place due to with geographic region and/or geological origin. In this paper an attempt has been made to present the regional empirical correlations proposed by various researchers for compression index based on critical overview. The accumulated review results may useful to quick identification of regional empirical equations to estimate the conventional compression as per the limitations.