This document describes general requirements and procedures for the assessment of concrete structures.

The assessment can be initiated under the following circumstances, but not limited to:

a)？an anticipated change in use or extension of design service life;

b)？structural deterioration due to time-dependent actions such as corrosion of reinforcement, fatigue, etc.;

c)？safety and/or serviceability check (e.g. for earthquake and increased traffic actions) as required by authorities, insurance companies, owners, etc.;

d)？structural damage by accidental actions (see ISO？2394).

This document does not cover

—？qualification of personnel;

—？contractual matters;

—？health and safety requirements for the protection of workers during the investigation and testing.