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Table 3 Experimental results.

From: Repair of Pre-cracked Reinforced Concrete (RC) Beams with Openings Strengthened Using FRP Sheets Under Sustained Load

Specimen

First shear crack (kN)

First flexural crack (kN)

Failure load (kN)

Failure mode

B1

69

100

251

Shear failure

B2

40

55

124

Shear failure

B3

61

178

FRP debonding

B4

40

65

160

FRP peeling and shear failure

B5

38

58

208.9

Concrete crushing and FRP peeling

B6

39

67

185.2

Concrete crushing and FRP peeling

B7

39

72

204

Concrete crushing and FRP peeling