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Table 7 Performance test results for each performance of repair materials alternatives according to the measurements of Table 3.

From: AHP-Based Evaluation Model for Optimal Selection Process of Patching Materials for Concrete Repair: Focused on Quantitative Requirements

Repair Alt. performance evaluation items

Repair A

Repair B

Repair C

Repair D

Repair E

Repair F

Alkali resistance (%)

0.30

0.02

0.10

0.50

1.20

0

Chloride permeability, C

172

674

154

1024

947

13

Electrical resistivity (kΩ cm)

324

214

421

64

108

1615

Bond Str. (MPa)

1.8

2.1

1.2

1.6

2.3

3.7

Compressive Str. (MPa)

27

43.2

28

63.7

36.1

83.5

Drying shrinkage (%)

0.024

0.048

0.031

0.030

0.002

0.063

Elasticity (GPa)

28

25.5

18.6

36.6

29

14

Tensile Str. (MPa)

4.8

3.5

1.5

2.2

2.8

38.2

Thermal expansion (millionths/°C)

8.2

13

10.6

9.3

9.9

24