Source | Denotation | Dmax (mm) | Fines content (%)a | Finer fraction (%)b | Cu = d60/d10 | Performance in terms of internal erosion |
Rönnqvist and Viklander [14] | 4 | 16 | 16 (21) | 30 | 40 | No observationsc |
11 | 16 | 10 (11) | 20 | 8 | No observationsc | |
17 | 16 | 32 (35) | 28 | 39 | No observationsc | |
22 | 16 | 24 (28) | 39 | 75 | No observationsc | |
26 | 16 | 18 (21) | 28 | 30 | No observationsc | |
37 | 64 | 38 (54) | 32 | 133 | No observationsc | |
45 | 128 | 11 (15) | 16 | 19 | No observationsc | |
54 | 64 | 18 (35) | 21 | 133 | No observationsc | |
A | 150 | 32 (53) | 33 | 1357 | Probable occurrenced | |
L | 20 | 19 (24) | 35 | 60 | Probable occurrenced | |
N | 150 | 20 (34) | 28 | 200 | Probable occurrenced | |
P | 16 | 12 (16) | 35 | 32 | Probable occurrenced | |
S | 180 | 11 (18) | 35 | 53 | Probable occurrenced |