Variant

Watertightness class

Calculated healable crack width, mm

Water penetration depth, mm

Relative strength

Initial cost index

Life-cycle cost index

A0

W6

0.05

70

1.00

1.00

1.85

A1

W10

0.20

38

1.05

1.10

1.61

A2

W12

0.30

28

1.07

1.18

1.58

A3

W12+

0.35

22

1.09

1.25

1.51