0.0–0.3 | Non-gypsiferous |
0.3–3.0 | Very slightly gypsiferous |
3.0–10 | Slightly gypsiferous |
10–25 | Moderately gypsiferous |
25–50 | Highly gypsiferous |
4 | 0.124 | 0.004 | 0.109 | 0.01 | 0.162 | 0.009 |
3 | 0.0014 | 0.002 | 0.016 | |||
2 | 0.0019 | 0.017 | 0.012 |
eo | 1.017 | 0.619 | 0.480 | ||
γd (kN/m3) | 12.1 | 15.5 | 17.3 | ||
Initial water content, wo % | 8.3 | 4.8 | 3.6 | ||
Dr % | 73 | 84 | 86 | ||
CP % | 200 kPa | CT | 11.57 | 3.42 | 1.04 |
DOT | 8.93 | 4.72 | 5.21 | ||
800 kPa | CT | --- | --- | --- | |
DOT | 18.33 | 14.63 | 7.16 |
200 | 1.87 | --- | 7.47 | --- | 6.42 | --- |
800 | 7 | 9 | 10.5 | 13.39 | 15.4 | 18.47 |
N1 | 9 | 30.6 | 66 |
N2 | 7.3 | 20.5 | 44 |
N3 | 6 | 6.9 | 14.8 |
Specific gravity, Gs | 2.44 | 2.56 | 2.69 |
Initial void ratio, eo | 1.017 | 0.619 | 0.480 |
Field dry unit weight, γd field (kN/m3) | 12.1 | 15.5 | 17.3 |
Maximum dry unit weight, γdmax (kN/m3) | 13.13 | 16.40 | 19.00 |
Minimum dry unit weigh, γ dmin (kN/m3) | 9.98 | 12.00 | 10.87 |
Relative density, Dr % | 73 | 84 | 86 |
Gravel % | 15.0 | 16.0 | 9.0 |
Sand % | 83.8 | 82.0 | 87.0 |
Fines % | 1.2 | 2.0 | 4.0 |
D10 (mm) | 0.170 | 0.300 | 0.042 |
D30 (mm) | 0.35 | 0.48 | 0.27 |
D60 (mm) | 0.75 | 0.95 | 0.60 |
Coefficient of curvature, Cc | 0.96 | 0.79 | 2.89 |
Coefficient of uniformity, Cu | 4.41 | 3.17 | 14.28 |
Soil classification according to USCS | SP | SP | SW |