Parameters obtained from tests

Location

Mosul

Baghdad

Basrah

Liquid limit (L.L) %

43 - 54

34 - 53

37 - 45.6

Plastic limit (P.L) %

22 - 26

19 - 30

21.33 - 31.9

Plastic index (P.I) %

17 - 30

15 - 29

11 - 18

Unit weight (γ) KN/m³

15.7 - 19.7

14.4 - 20.31

15.1 - 20.1

Cohesion (C) KPa

0 - 40

-

0 - 4

Angle of internal friction (ϕ)˚

15 - 28

-

33 - 31

Initial void ratio (e_o)

0.558 - 0.767

0.647 - 0.769

0.72 - 0.90

Compression index (C_c)

0.065 - 0.28

0.156 - 0.22

0.186 - 0.267

Swelling index (C_s)

0.011 - 0.156

0.010 - 0.054

0.028 - 0.090

Preconsolidation pressure (P_c) KPa

70 - 150

95 - 165

90 - 135

Unconfined compression strength (q_u) KPa

-

76 - 370.6

24 - 125.1