Study of Material Composition Effects on the Mechanical Properties of Soil-Rock Mixtures

Table 6

Strength index of different rock sizes according to the Mohr–Coulomb criterion.

Rock size	(°)	C (kPa)
16∼20 mm	30.7	6.9
10∼16 mm	28.2	32.2
5∼10 mm	29.0	15.5
Mixed size	29.6	5.3