Study on Soil Water and Suction Stress Characteristics for Unsaturated Clay Soil of Airport Engineering Based on Laboratory Tests

Table 1

Physical properties of the soil obtained from Feidong.

Sample	Liquid limit (%)	Plastic limit (%)	Plasticity index (%)	Free swelling ratio (%)	Specific gravity	Initial water content (%)	Void ratio
Feidong clay	37.8	24.8	13	45	2.73	19.26	0.57