The diagnosis of the condition
state of a reinforced concrete work, makes it possible to characterise
the origin and the extent of possible damages. As a rule, this diagnosis
is carried out after some damages have appeared, but it is also
asked within various frameworks, such as rehabilitation works or
In addition, a diagnosis has several objectives:
to identify the origin of reinforcement corrosions,
to evaluate their extent, in the structure,
to predict their probable change, with time and space,
to estimate their consequences on the safety concerning the structure
to define the further actions to make.
A preliminary visit of the structure makes it possible to put forth
assumptions on the possible causes of the damages, and thus to specify
the operations to be carried out, by taking account of the functioning
of this structure. The mechanical behaviour of the various structure
parts, is a point very significant to examine. However, it is not
A diagnosis concerning the reinforced concrete relates to the concrete
of coating, on the one hand, and them reinforcements, on the other
hand. It is done within the framework of an inspection.
Diagnosis of condition state
The condition (state) of a reinforced concrete structure, which has a risk of corrosion, is determined with characterizing covering concrete and reinforcing steel. A diagnosis on the condition of a structure mainly makes it possible to determine the origin of steel corrosion (particularly, after concrete carbonation or chloride ingress).