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

Table 5

Summary of index properties of treated and raw soil samples.

Sample	Liquid limit (%)	Plastic index (%)	Free swell index (%)	Free swell ratio	Linear shrinkage limit (%)
ES	97	40	140	2.4	24.3
ES + 2%EA	96.5	36.5	110	2.1	23.9
ES + 4%EA	96	35	90	1.9	23.6
ES + 6%EA	89	25	80	1.8	22.1
ES + 8%EA	87	28	70	1.7	22.4
ES + 10%EA	83	25	60	1.6	19.3