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Table 1 Properties of specimens.

From: Flexural Strengthening of RC Columns with Low Longitudinal Steel Ratio using GFRP Bars

Specimen

Concrete strength (MPa)

Number of steel rebars

Diameter of steel rebars (mm)

Ratio of steel rebars (%)

Number of GFRP bars

Diameter of GFRP bars (mm)

Ratio of GFRP bars (%)

NS

25.3

4

10

0.785

–

–

–

S08

24.2

4

10

0.785

4

8

0.502

S10

24.8

4

10

0.785

4

10

0.785

S12

25.2

4

10

0.785

4

12

1.13