Table 9 Effect of using adhesive agents on slip at the stress peak of post-installed anchors.

From: Bond of ribbed and threaded steel reinforcement bars post-installed in concrete considering bonded length and adhesive type

Lb = 5 db

Lb = 10 db

Lb = 15 db

Specimen

su (mm)

*Decline in su (%)

Specimen

su (mm)

*Decline in su (%)

Specimen

su (mm)

*Decline in su (%)

RN5-0

3.47

0.0

RN10-0

2.47

0.0

RN15-0

5.3

0.0

RS5-12

2

73.5

RS10-12

0.72

243.1

RS15-12

1.26

320.6

RS5-16

0.5

594.0

RS10-16

1.12

120.5

RS15-16

0.31

1609.7

RS5-18

2.7

28.5

RS10-18

2.55

− 3.1

RS15-18

0.5

960.0

RK5-16

1.5

131.3

RK10-16

2.5

− 1.2

RK15-16

2.88

84.0

RK5-18

2.85

21.8

RK10-18

1.85

33.5

RK15-18

1.85

186.5

TS5-16

2

73.5

TS10-16

0.96

157.3

TS15-16

1.6

231.3

  1. *The percentage decrease in su is calculated for each specimen compared to the control specimen of the same group. The control specimen was RN5-0, RN10-0 and RN15-0 when the bonded length (Lb) was 5 db, 10 db and 15 db, respectively.
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