The used clay physical characteristics
| Test | Magnitude | Specification |
|---|---|---|
| Classification (USCS) | CL | ASTM D 2487 (2017) |
| Activity | 0.41 | – |
| Clay %, <0.005 mm | 42 | ASTM D 422 (2007) |
| Silt %, 0.005–0.075 mm | 28 | ASTM D 422 (2007) |
| Sand %, 0.075–4.75 mm | 30 | ASTM D 422 (2007) |
| Gravel %, >4.75 mm | 0 | ASTM D 422 (2007) |
| Specific gravity (Gs) | 2.7 | ASTM D 854 (2023) |
| Liquid limit (LL) | 33 | ASTM D 4318 (2017) |
| Plastic limit (PL) | 18 | ASTM D 4318 (2017) |
| Plasticity index (PI) | 15 | ASTM D 4318 (2017) |
| Test | Magnitude | Specification |
|---|---|---|
| Classification (USCS) | CL | |
| Activity | 0.41 | – |
| Clay %, <0.005 mm | 42 | |
| Silt %, 0.005–0.075 mm | 28 | |
| Sand %, 0.075–4.75 mm | 30 | |
| Gravel %, >4.75 mm | 0 | |
| Specific gravity (Gs) | 2.7 | |
| Liquid limit (LL) | 33 | |
| Plastic limit (PL) | 18 | |
| Plasticity index (PI) | 15 |
Note(s): * Activity = (PI/{percent of clay <0.002 mm})
Source(s): Authors’ own work
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