1 Introduction
2 Methodology
2.1 Small-Scale Blast Tests
Property | Granite | Mortar | Damping | |||
---|---|---|---|---|---|---|
Mean | Std | Mean | Std | Mean | Std | |
UCS [MPa] | 171.50 | 9.00 | 27.70 | 1.10 | – | – |
Brazilian tensile strength [MPa] | 10.85 | 1.52 | 2.90 | 0.49 | – | – |
Density [g/cm3] | 2.70 | 0.01 | 1.66 | 0.01 | 2.12 | 0.08 |
Porosity [%] | 0.5 | – | 30 | – | Water saturated | |
Average grain size [mm] | 1–3 | – | 0.1 | – | – | – |
Young’s modulus [GPa] | 65.30 | 0.83 | 12.20 | 0.31 | – | – |
aDynamic Young’s modulus [GPa] | 54.12 | – | 14.51 | – | 13.65 | – |
Poisson’s ratio [–] | 0.24 | 0.02 | 0.23 | 0.05 | – | – |
aDynamic Poisson’s ratio [–] | 0.25 | – | 0.17 | – | 0.37 | – |
P‑wave velocity [m/s] | 4908 | 111 | 3069 | 62 | 1210 | 274 |
S‑wave velocity [m/s] | 3212 | 150 | 2065 | 40 | 643 | 79 |
aDynamic shearing modulus [GPa] | 27.86 | – | 7.08 | – | 0.95 | – |