Table 8 Physical and mechanical properties test results of the mudstone-like material.

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

Group

Major mineral content/%

Physical property

strength parameters

t/min

Gypsum

Kaolinite

Rectorite

Quartz

\(\:\omega\:\)/%

\(\:\rho\:\)/(g.cm-3)

UCS/ MPa

E/MPa

c/kPa

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

1

12.80

1.95

1.40

68.45

8.70

1.62

0.19

96.51

189.43

27.56

78

2

9.60

3.9

2.81

56.61

10.87

1.72

0.15

42.13

139.76

42.83

43

3

6.40

5.86

4.21

50.24

9.80

1.89

0.09

32.01

217.88

20.06

50

4

3.20

7.81

5.62

53.01

9.41

1.82

0.12

24.71

97.43

32.78

21

5

19.20

2.93

2.11

51.15

11.01

1.68

1.55

144.51

322.76

54.28

90

6

14.40

5.86

4.21

57.17

9.02

1.62

0.90

70.12

209.29

54.51

75

7

9.60

8.78

6.32

23.96

5.65

2.08

2.23

187.19

129.54

44.32

54

8

4.80

11.71

8.43

39.95

6.48

2.04

1.46

113.43

167.65

30.41

46

9

25.60

3.9

2.81

42.84

12.35

1.66

1.98

255.13

417.49

29.34

85

10

19.20

7.81

5.62

31.52

8.67

1.82

2.61

319.33

492.75

6.28

73

11

12.80

11.71

8.43

50.67

8.51

1.74

2.01

176.82

220.58

37.60

61

12

6.40

15.62

11.24

41.07

7.76

1.91

2.21

207.51

166.38

41.80

58

13

32.00

4.88

3.51

21.69

12.59

1.83

3.59

505.93

442.67

64.26

82

14

24.00

9.76

7.02

25.67

11.81

1.83

2.95

389.98

495.32

54.65

75

15

16.00

14.64

10.53

38.27

9.85

1.73

2.21

217.83

226.23

38.75

68

16

8.00

19.52

14.04

41.67

11.20

1.82

1.73

146.90

213.93

9.69

62

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