ANGLE OF INTERNAL FRICTION
| MATERIAL/NUMBER OF MEASUREMENT | PHIE(°) | PHILIN(°) | PHISF(°) |
|---|---|---|---|
| GLASS BALLS 5mm 1 | 26,4 | 25,9 | 23,9 |
| GLASS BALLS 5mm 2 | 27,1 | 27,1 | 23,3 |
| GLASS BALLS 5mm 3 | 26,1 | 25,9 | 23,5 |
| GLASS BALLS 5mm 4 | 25,8 | 25,3 | 24,2 |
| GLASS BALLS 5mm 5 | 23,6 | 23,4 | 23,6 |
| GLASS BALLS 5mm 6 | 23,8 | 23,4 | 23,4 |
| GLASS BALLS 5mm 7 | 23,4 | 22,9 | 23,4 |
| GLASS BALLS 5mm 8 | 25,9 | 25,6 | 23,5 |
| GLASS BALLS 5mm 9 | 25,3 | 25,0 | 23,8 |
| GLASS BALLS 5mm 10 | 23,3 | 23,3 | 23,2 |
| GLASS BALLS 5mm 11 | 23,9 | 23,7 | 22,8 |
| GLASS BALLS 5mm 12 | 24,9 | 24,6 | 22,7 |
| GLASS BALLS 5mm 13 | 26,8 | 26,4 | 23,4 |
| GLASS BALLS 5mm 14 | 25,6 | 25,4 | 23,3 |
| GLASS BALLS 5mm 15 | 24,4 | 23,8 | 21,8 |
| GLASS BALLS 5mm 16 | 25,7 | 25,6 | 23,3 |
| GLASS BALLS 5mm 17 | 26,0 | 25,3 | 22,7 |
| GLASS BALLS 5mm 18 | 23,1 | 22,9 | 22,9 |
| GLASS BALLS 5mm 19 | 24,4 | 23,9 | 22,3 |
| GLASS BALLS 5mm 20 | 25,4 | 24,9 | 21,8 |
| GLASS BALLS 5mm 21 | 26,3 | 25,6 | 24,3 |
| GLASS BALLS 5mm 22 | 26,9 | 26,3 | 24,4 |
| GLASS BALLS 5mm 23 | 26,4 | 26,1 | 23,9 |
| GLASS BALLS 5mm 24 | 24,7 | 23,9 | 23,2 |
| GLASS BALLS 5mm 25 | 26,5 | 26,2 | 23,7 |
| GLASS BALLS 5mm 26 | 23,0 | 23,0 | 22,7 |
| GLASS BALLS 5mm 27 | 23,8 | 23,6 | 22,8 |
| GLASS BALLS 5mm 28 | 26,3 | 26,0 | 22,5 |
| GLASS BALLS 5mm 29 | 25,8 | 25,5 | 24,4 |
| GLASS BALLS 5mm 30 | 25,3 | 25,0 | 22,9 |
| PHIE (°) | PHILIN (°) | PHISF (°) | |
|---|---|---|---|
| Minimum measured value | 23,0 | 22,9 | 21,8 |
| Maximum measured value | 27,1 | 27,1 | 24,4 |
| Standard deviation of measurement | 1,2 | 1,2 | 0,7 |
| Arithmetical mean diameter | 25,2 | 24,9 | 23,3 |
| Mean deviation | 1,1 | 1,1 | 0,5 |