Plasticity, Swell-Shrink, and Microstructure of Phosphogypsum Admixed Lime Stabilized Expansive Soil

Table 1

Properties of soil.

Property	Value
Liquid limit	68%
Plastic limit	27%
Plasticity index	41%
Shrinkage limit	10%
Specific gravity	2.76
% gravel	0
% sand	2.5
% silt	60.5
% clay	37
Maximum dry density	15.3 kN/m^3
Optimum moisture content	25%
UCC strength	115.8 kPa
Soil pH	6.53
Soil classification	CH