Number

S1

S2

S3

S4

S5

S6

S7

S8

S9

S10

S11

S12

Groove spacing/mm

0

0

0

13.25

13.25

13.25

23.15

23.15

23.15

33.42

33.42

33.42

Groove depth/mm

4.05

4.05

4.05

4.05

4.05

4.05

4.05

4.05

4.05

4.05

4.05

4.05

Bolt diameter/mm

18.64

/20.40

18.64

/20.40

18.64

/20.40

18.64

/20.40

18.64

/20.40

18.64

/20.40

18.64

/20.40

18.64

/20.40

18.64

/20.40

18.64

/20.4

18.64

/20.4

18.64

/20.4

Anchorage length/mm

260

260

260

260

260

260

260

260

260

260

260

260

Temperature/˚C

22

22

22

22

22

22

22

22

22

22

22

22

Ultimate tension/KN

201.1

191.9

187.3

208.1

203.6

205.9

206.2

203.6

194.5

185.3

171.6

180.7

Ultimate displacement/mm

12.5

9.99

11.8

11.5

14.4

15.4

18.7

16.2

19.4

21.3

21.2

22.4