Effects of Cement Treatment on Water Retention Behavior and Collapse Potential of Gypseous Soils: Experimental Investigation and Prediction Models

Table 4

Classification of gypseous soil based on collapse index, Ie% (D5333-2003).

Degree of specimen collapse	Collapse index, Ie (%)
None	0
Slight	0.1–2.0
Moderate	2.1–6.0
Moderately Severe	6.1–10.0
Severe	>10