ABSTRACT
In order to achieve the desired lifetime after a repair of a structure, it is necessary to define a maintenance plan. The maintenance plan is thus an essential element of the repair of a structure and should not be neglected. EN 1504 defines the key issues of a maintenance plan in Part 9, which describes the necessity of maintenance as follows:
Some parts of the protected or repaired concrete structure may have an expected service life which is short compared with that of the rest of the concrete structure. Familiar examples are surface coatings, sealants, and weather proofing materials. If the integrity of the protection or repair depends on such parts, it is essential that they be regularly inspected, tested and renewed if necessary.
