Abstract
Estimated soil clay content (P0.002) obtained from consistency limits (Savage, 2007) was evaluated by comparing its results with those of the conventional hydrometer test (P0.002h). Altogether, 180 soil samples were tested for Atterberg limits, linear shrinkage and clay content, to generate the data used for statistical evaluation. It is shown that a strong correlation with realistic and valid statistical equality, exists between P0.002 and P0.002h. However, variability of P0.002 estimations, which is up to 50%, is quite high for practical purposes. Counter findings of the study confirm the credibility of the hydrometer method.