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Table 12 Comparison of UCS values resulted from Schmidt Hammer and laboratory test

From: Slope mass rating-based analysis to assess rockfall hazard on Yogyakarta Southern Mountain, Indonesia

Unit

Average UCS value generated by Schmidt Hammer (MPa)

UCS value resulted from laboratory test (MPa)

Andesite

131.20 (1 stations)

122.30

Crystalline limestone

14.92 (5 stations)

14.61

Fragmental limestone

35.33 (6 stations)

36.52

Reefal limestone

6.52 (5 stations)

6.96