Table 1: Variables of test columns.

No.ColumnsCut-out
preparation
FormDamageCuring conditionRemarks

1M1 M series
(Control)
No cutout * *
2M2 No repair
3G-D-D1-1Cast
4G-D-D1-2 G-D-D seriesChipping Acrylic plate Damage1
5G-D-D2-1CastAir
6G-D-D2-2Chipping Damage2
7G-D-F-D1-1
8G-D-F-D1-2 G-D-F-D series Damage1
9G-D-F-D2-1
10G-D-F-D2-2 Damage2
11U-W-F-D1-1
12U-W-F-D1-2 U-W-F-D series Damage1
13U-W-F-D2-1Epoxy fiber panelRepair with repair materials after removal of damaged concrete
14U-W-F-D2-2Chipping Damage2
15U-D-F-D1-1
16U-D-F-D1-2 U-D-F-D series Damage1
17U-D-F-D2-1 Underwater
18U-D-F-D2-2 Damage2
19U-D,S-F-D1-1
20U-D,S-F-D1-2 U-D,S-F-D series Damage1
21U-D,S-F-D2-1 Epoxy fiber panel/shear connector
22U-D,S-F-D2-2 Damage2

G: ground, U: underwater, D: dry, W: wet, S: shear connector, F: form (epoxy fiber panel), D1: damage1 (depth 5 cm), D2: damage2 (depth 7 cm), and 1/2: serial number.