Table 3 Basic physic-mechanical properties of the cretaceous mudstone.

From: Application of clay minerals in the synthesis of cretaceous mudstones and microstructural analysis of their deterioration mechanism

Specimen

\(\:\rho\:\)/(g.cm− 3)

ω/%

\(\:{\Phi\:}\)/%

c/MPa

\(\:\phi\:\)/(\(\:^\circ\:\))

t/min

Sandy mudstone

1.97

6.17

17.53

0.45

27.82

40

Grey mudstone

2.08

9.83

23.16

0.98

11.43

20

Black sandstone

2.16

10.09

25.79

0.56

9.26

10

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