Civil Engineering Reference
In-Depth Information
3 LV DT's
Concrete specimen
FRP Rod w or w/o probe
Debonded Length
Bonded
length
Plaster of paris
Reaction
3 LV DT's
Strain gage
Pull-out Load
(a)
(b)
(c)
(d)
Figure 3.7
(a) Direct pullout bond test schematic; (b) typical pullout bond test setup;
(c, d) typical failure modes of a GFRP bar specimen.
14
12
10
8
6
Loaded end(63.5 mm)
Free end(63.5 mm)
Loaded end(127 mm)
Free end(127 mm)
4
2
0
0
0.5
1
1.5
Slip (mm)
2
2.5
3
Figure 3.8
Typical free and loaded end bond-slip curves of a no. 4 GFRP bar.
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