Table 13 Compressive strength, tensile strength, shear strength, longitudinal wave velocity, rebound number, and Toughness Indexes tests results of results of backing limestone blocks, Chephren pyramid
No. | D (mm) | H (mm) | A2 (mm2) | Failure load (kN) | σc (MPa) | σt (MPa) | Shear strength (N/mm2) | Vp (km/s) | (RN) rebound number | Toughness Indexes (AIV test) |
|---|---|---|---|---|---|---|---|---|---|---|
1 | 37.7 | 70 | 1000.3 | 14.50 | 16.14 | 3.21 | 1.91 | 5.06 | 32 | 11.50 |
2 | 38.2 | 76 | 1014.6 | 13.10 | 15.66 | 2.02 | 2.09 | 5.31 | 36 | 10.90 |
3 | 36.2 | 74 | 1012.8 | 15.22 | 17.78 | 3.71 | 2.28 | 6.80 | 29 | 11.99 |
4 | 38.2 | 76 | 1200.1 | 16.30 | 13.60 | 1.99 | 2.18 | 4.80 | 24 | 8.2 |
5 | 39.2 | 73 | 1207.5 | 16.80 | 12.79 | 1.49 | 1.67 | 4.50 | 25 | 8.1 |