Table 1

Literature review of the dimensions of samples for compression and flexural strength tests

Compression testFlexural test
ReferenceType of rockSize of sampleLength/diameter (L/D)ReferenceType of rockL × W × D: mm
Lundborg (1967) Granite20, 30, 40 and 60 mm dia.1Xeidakis et al. (1996) Marble, calcite and dolomitic180 × 40 × 20
Bieniawski et al. (1967), Singh and Singh (1993), Yılmaz and Sendir (2002), Brady and Brown (2013) Gypsum rockNX (52 mm dia.)2Biolzi et al. (2001) Granite240 × 40 × 30
Ali (1979) Gypsum rock38·1 mm dia. × 114·3 mm high and 50·8 mm dia. × 152·4 mm high3Coviello et al. (2005) Calcarenite130 × 50 × 40
Whittles et al. (2006) Sandstone25 mm dia. × 50 mm high2Biolzi et al. (2011) Sandstone180 × 40 × 40
Agustawijaya (2007) Sandstone and siltstone54 mm dia.1·6–2·5Aliha et al. (2009) Granite220 × 40 × 20
Özkan et al. (2009) Rock salt25, 50, 75, 100 and 125 mm dia.0·5–2·5Moonen (2009) Sandstone240 × 48 × 24
Cho et al. (2010) Sulfaset synthetic rock55 mm dia. × 110 mm high2Efimov (2009) Granite120 × 20 × 20
Liang et al. (2012) Salt rock50 mm dia. × 100 mm high2Chen and Azzam (2007) Sandstone250 × 50 × 50
Current studyGypsum rock54 mm dia.2·5Current studyGypsum rock140 × 40 × 20
RemarksDifferent types of rock were usedDiameters varied from 20 to 55 mmL/D varied from 0·5 to 3RemarksDifferent types of rock were usedDifferent L × W × D values were used

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