Table 3: Physical and mechanical properties of expansive soil.

Unit weight (kN)Saturated permeability coefficient (m/s)Effective friction angle (°)Effective cohesion (kPa)

Soil properties202.3e−79, 12, 15, 18, 21, 240, 1, 2, 3, 5, 7.5, 10, 15, 20, 25, 30