Study of the Permanent Deformation of Soil Used in Flexible Pavement Design

Table 5

Parameters of the PD model of the studied materials.

Parameters	Materials
	M1	AB	Mixture
K1	0.3156	0.7227	1.1464
K2	0.5433	0.1770	0.2460
K3	−0.3740	−0.2117	−0.1518
K4	0.1970	0.0887	0.0191
R^2	0.72	0.82	0.76