Prediction of Compaction Characteristics of Fine-Grained Soils Using Consistency Limits

On yield stress of compacted clays

“…For σ y , percentage errors in Eqs. (1), (2), and (3) are ± 9%, ± 7.8%, and ± 9.8% respectively, as shown in Fig. 10.…”

“…Percentage errors in Eqs. (1), (2), and (3) are ± 9.2%, ± 7.5%, and ± 10.5% respectively. It is noted that one out of six data points falls outside the standardized envelope for all three equations (Fig.…”

“…The values of correlation coefficient (R 2 ) for Eqs. (1), (2), and (3) are 0.63, 0.77, and 0.62 respectively. The maximum R 2 -value is 1, and a good and reliable model must have a high R 2 -value.…”

“…The maximum R 2 -value is 1, and a good and reliable model must have a high R 2 -value. The R 2 is an index of the goodness of fit between the predictive model and sample data used to develop that model [2]. It provides a quantitative (1) σ y (kPa) = 1443.3(I P ) −0.382…”

“…In earthwork construction, artificial compaction methods are in common practice around the world to achieve the over-consolidation. Compaction is a technique through which soil particles are packed closely by applying dynamic/static compression energy, which consequently decreases the compressibility, increases the shear strength, and reduces the permeability of the soils [2,3]. Moreover, pragmatically, the earthen materials used in the construction of different projects are diversified; it can include low to high plastic clayey soils depending on various factors, including project specification, availability of materials and economic considerations.…”