Table 1: Elastic modulus (GPa) and hardness (GPa) values averaged over six specimens for each condition (wet, dry) and/or loading/unloading rate (10, 100, and 1000  N/s) (mean ± standard deviation).

ConditionLoading rate ( N/s)Elastic modulus (GPa)Hardness (GPa)

Dry100024.5 ± 0.90.9 ± 0.1
Dry10022.6 ± 5.40.9 ± 0.2
Dry1022.2 ± 5.61 ± 0.3

Wet100014 ± 4.50.6 ± 0.3
Wet10013 ± 4.70.67 ± 0.4
Wet1015 ± 5.91.1 ± 1