Study on the Performance of Expansive Subgrade Soil Stabilized with Enset Ash

Table 1

Geotechnical properties of expansive soil.

Property	Quantity
Percentage passing no. 200 sieve %	91
Liquid limit %	97
Plastic limit %	57
Plasticity index %	40
Linear shrinkage %	24.3
Volumetric shrinkage %	58.5
Shrinkage index %	38.4
AASHTO soil classification	A-7-5
USCS	CH
Natural moisture content %	43.5
Specific gravity	2.74
Free swell index %	140
Free swell ratio	2.4
Maximum dry unit weight kN/m^3	11.6
Optimum moisture content %	36.2
UCS (kPa)	49.41
Soaked CBR value %	1.7