Table 1 Physical property indexes of the test soil.

From: Laboratory model test study of the hydrological effect on granite residual soil slopes considering different vegetation types

Specific gravity

Liquid limit (%)

Plastic limit (%)

Plasticity index

Maximum dry density (g/cm3)

Optimal moisture content (%)

Engineering classification

2.57

43.6

26.8

16.8

1.513

23.7

Sandy clay

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