| Test | Test parameter | 5th percentile | 25th percentile | 50th percentile | 75th percentile | 95th percentile | Present study Mean ± S.D |
---|---|---|---|---|---|---|---|---|
Static (ASTM F2077) | Axial compression | Stiffness (N/mm) | 5097 | 7984 | 10,108 | 13,300 | 19,203 | 26,244.8 ± 1154.0 |
 |  | Yield strength (N) | 5450 | 8379 | 10,117 | 12,131 | 15,256 |  |
 |  | Ultimate strength (N) | 6236 | 8935 | 10,800 | 14,728 | 32,863 | 26,322.1 ± 1848.5 |
 | Compression—shear | Stiffness (N/mm) | 1492 | 2927 | 4347 | 6140 | 10,538 | 9514.0 ± 307.6 |
 |  | Yield strength (N) | 1464 | 2447 | 3680 | 5265 | 6685 | 7230.8 ± 332.5 |
 |  | Ultimate strength (N) | 1515 | 2861 | 4626 | 6868 | 11,001 | 7334.8 ± 379.5 |
 | Torsion | Torsional stiffness (N m/degree) | 0.3 | 0.7 | 1 | 1.9 | 4.7 | 5.5 ± 0.3 |
 |  | Yield moment (N m) | 3.1 | 6.1 | 8.6 | 12 | 18.8 |  |
 |  | Ultimate moment (N m) | 3.3 | 7.6 | 9.9 | 13.8 | 25.3 | 39.7 ± 1.5 |
Dynamic (ASTM F2077) | Axial compression | Runout load (N) | 1500 | 2000 | 2600 | 3500 | 5760 | 2000–2400 |
 | Compression—shear | Runout load (N) | 679 | 1000 | 1400 | 1875 | 2450 | 1400–1875 |
 | Torsion | Runout torque (N m) |  ± 1.0 |  ± 1.5 |  ± 1.5 |  ± 2.0 |  ± 3.0 |  > 2 |
Subsidence (ASTM F2267) |  | Kp, Block stiffness (N/mm) | 257 | 324 | 424 | 522 | 791 | 436.3 ± 21.0 |