Table 1 List of laboratory samples and their dimensions, average, standard deviation values of Vp (m/s), R (−), UCS (MPa) measured and description of degradation phenomena
Name of slabs | N. of samples | Vp (m/s) | R (-) | UCS (Mpa) | Description |
|---|---|---|---|---|---|
P01 | 4 | 2420 ± 130 | 37 ± 3 | 52 ± 10 | Compact stone in good condition |
P02 | 4 | 2420 ± 110 | 32 ± 6 | 44 ± 5 | Partial disintegration and exfoliation |
P03 | 4 | 2870 ± 510 | 34 ± 2 | 41 ± 6 | Partial delamination and presence of lichens |
P04 | 3 | 1630 ± 250 | 23 ± 9 | 8 ± 0 | Strong delamination, erosion, cracks, biological colonization |
P05 | 5 | 2640 ± 80 | 28 ± 4 | 35 ± 2 | Partial delamination, deposit |
P06 | 4 | 2730 ± 130 | 34 ± 2 | 56 ± 5 | Partial exfoliation, deposit, disintegration |
P07 | 4 | 2720 ± 160 | 33 ± 3 | 53 ± 7 | Delamination, erosion |
P08 | 3 | 3130 ± 60 | 35 ± 1 | 71 ± 13 | Compact stone in good condition |
P09 | 8 | 3410 ± 110 | 40 ± 4 | 116 ± 19 | Compact stone in good condition |
P10 | 6 | 500 ± 140 | 22 ± 2 | 12 ± 2 | Strong erosion, cracks |