Literature review of the dimensions of samples for compression and flexural strength tests
| Compression test | Flexural test | |||||
|---|---|---|---|---|---|---|
| Reference | Type of rock | Size of sample | Length/diameter (L/D) | Reference | Type of rock | L × W × D: mm |
| Lundborg (1967) | Granite | 20, 30, 40 and 60 mm dia. | 1 | Xeidakis et al. (1996) | Marble, calcite and dolomitic | 180 × 40 × 20 |
| Bieniawski et al. (1967), Singh and Singh (1993), Yılmaz and Sendir (2002), Brady and Brown (2013) | Gypsum rock | NX (52 mm dia.) | 2 | Biolzi et al. (2001) | Granite | 240 × 40 × 30 |
| Ali (1979) | Gypsum rock | 38·1 mm dia. × 114·3 mm high and 50·8 mm dia. × 152·4 mm high | 3 | Coviello et al. (2005) | Calcarenite | 130 × 50 × 40 |
| Whittles et al. (2006) | Sandstone | 25 mm dia. × 50 mm high | 2 | Biolzi et al. (2011) | Sandstone | 180 × 40 × 40 |
| Agustawijaya (2007) | Sandstone and siltstone | 54 mm dia. | 1·6–2·5 | Aliha et al. (2009) | Granite | 220 × 40 × 20 |
| Özkan et al. (2009) | Rock salt | 25, 50, 75, 100 and 125 mm dia. | 0·5–2·5 | Moonen (2009) | Sandstone | 240 × 48 × 24 |
| Cho et al. (2010) | Sulfaset synthetic rock | 55 mm dia. × 110 mm high | 2 | Efimov (2009) | Granite | 120 × 20 × 20 |
| Liang et al. (2012) | Salt rock | 50 mm dia. × 100 mm high | 2 | Chen and Azzam (2007) | Sandstone | 250 × 50 × 50 |
| Current study | Gypsum rock | 54 mm dia. | 2·5 | Current study | Gypsum rock | 140 × 40 × 20 |
| Remarks | Different types of rock were used | Diameters varied from 20 to 55 mm | L/D varied from 0·5 to 3 | Remarks | Different types of rock were used | Different L × W × D values were used |
| Compression test | Flexural test | |||||
|---|---|---|---|---|---|---|
| Reference | Type of rock | Size of sample | Length/diameter ( | Reference | Type of rock | |
| Granite | 20, 30, 40 and 60 mm dia. | 1 | Marble, calcite and dolomitic | 180 × 40 × 20 | ||
| Gypsum rock | NX (52 mm dia.) | 2 | Granite | 240 × 40 × 30 | ||
| Gypsum rock | 38·1 mm dia. × 114·3 mm high and 50·8 mm dia. × 152·4 mm high | 3 | Calcarenite | 130 × 50 × 40 | ||
| Sandstone | 25 mm dia. × 50 mm high | 2 | Sandstone | 180 × 40 × 40 | ||
| Sandstone and siltstone | 54 mm dia. | 1·6–2·5 | Granite | 220 × 40 × 20 | ||
| Rock salt | 25, 50, 75, 100 and 125 mm dia. | 0·5–2·5 | Sandstone | 240 × 48 × 24 | ||
| Sulfaset synthetic rock | 55 mm dia. × 110 mm high | 2 | Granite | 120 × 20 × 20 | ||
| Salt rock | 50 mm dia. × 100 mm high | 2 | Sandstone | 250 × 50 × 50 | ||
| Current study | Gypsum rock | 54 mm dia. | 2·5 | Current study | Gypsum rock | 140 × 40 × 20 |
| Remarks | Different types of rock were used | Diameters varied from 20 to 55 mm | Remarks | Different types of rock were used | Different | |
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