European standards for concrete repair - Concrete Repair - page 195

Table 11.5a Repair principles and methods based on EN 1504-9

Relevant standard
or other route

Principle Examples of methods based on the principles

Principles and methods related to defects in concrete
1. Protection
against ingress

1.1 Hydrophobic impregnation EN 1504-2

1.2 Impregnation EN 1504-2

1.3 Coating EN 1504-2

1.4 Surface bandaging of cracks EOTA

1.5 Filling of cracks EN 1504-5

1.6 Transferring cracks into joints EOTA

1.7 Erecting external panels EN1992-1-1

1.8 Applying membranes EOTA

2. Moisture
control

2.1 Hydrophobic impregnation EN 1504-2

2.2 Impregnation EN 1504-2

2.3 Coating EN 1504-2

2.4 Erecting external panels EN1992-1-1

2.5 Electrochemical treatment Proprietary

3. Concrete
restoration

3.1 Hand-applied mortar EN 1504-3

3.2 Recasting with concrete or mortar EN 1504-3

3.3 Spraying concrete or mortar EN 1504-3

3.4 Replacing elements EN1992-1-1

4. Structural
strengthening

4.1 Adding or replacing embedded or external
reinforcing bars

EN1992-1-1

4.2 Adding reinforcement anchored in pre-
formed or drilled holes

EN 1504-6

4.3 Bonding plate reinforcement EN 1504-4

4.4 Adding mortar or concrete EN 1504-3 & -4

4.5 Injecting cracks, voids or interstices EN 1504-5

4.6 Filling cracks, voids or interstices EN 1504-5

4.7 Prestressing - (post-tensioning) EN1992-1-1

5. Increasing
physical
resistance

5.1 Coating EN 1504-2

5.2 Impregnation EN 1504-2

5.3 Adding mortar or concrete EN 1504-3

6. Resistance to
chemicals

6.1 Coating EN 1504-2

6.2 Impregnation EN 1504-2

6.3 Adding mortar or concrete EN 1504-3