Compression Index Correlation that Best Fits Clay Deposits in Nigeria

Abstract

Soil samples collected from 16 clay deposits across Nigeria were tested for consolidation. Compression index were calculated from the consolidation results. The values of compression index from the experimental results were then compared with those obtained using seven different empirical correlations from literature. The experimental values were correlated with values obtained from each of the considered empirical correlations. Coefficient of determination (R2) was used as evaluation criteria to check for the empirical correlation that best fits the considered clay deposits. Observation of the results showed that the empirical correlation, proposed by Azzuoz et al for Chicago clays has the highest R2 of 66.25 %, and therefore found to best fits the clay deposits considered.