Number of groups

number

Maximum pulling force/KN

Average maximum pulling force/KN

A) group (Ordinary cement slurry)

1#

14.32

14.28

2#

13.61

3#

14.90

B) group (3% Expansion agent dosage self stressing slurry)

4#

19.35

18.37

5#

17.29

6#

18.55

C) group (5% Expansion agent dosage self stressing slurry)

7#

30.20

30.82

8#

31.44

9#

30.82

D) group (7% Expansion agent dosage self stressing slurry)

10#

39.25

40.98

11#

41.58

12#

42.12

E) group (9% Expansion agent dosage self stressing slurry)

13#

22.51

22.24

14#

23.48

15#

20.73