| Source | Gradation | Dmax (mm) | Fines content (%)a | Finer fraction (%)b | Cu = d60/d10 | Summary of test results |
| Lafleur and Nguyen [8] | S28 | 37.5 | 28 (36) | 38 | 24 | Stable |
| S17 | 37.5 | 17 (20) | 37 | 13 | Stable | |
| S10 | 37.5 | 10 (12) | 33 | 6 | Unstable | |
| S7 | 37.5 | 7 (8) | 25 | 6 | Unstable | |
| Wan [9] | RD | 9.5 | 22 (23) | 45 | 49 | Stable |
| Moffat et al. [10] | C-20 | 19 | 20 (26) | 20 | 20 | Unstable |
| C-30 | 19 | 30 (33) | 35 | 30 | Unstable | |
| Hunter et al. [11] | FG1 | 37.5 | 33 (43) | 40 | 425 | Stable |
| CG3 | 53 | 17 (36) | 25 | 147 | Unstable | |
| Lilja et al. [12] | Mr3 | 63 | 22 (29) | 32 | 40 | Unstable |
| Mr19 | 31.5 | 38 (41) | 38 | 25 | Unstable |