1. Main causes of damage to engineering structures

1.1 Material degradation

The physical properties and, more specifically, the mechanical behavior of [15] concrete and steel are likely to deteriorate as a function of the environmental conditions defined by the geographical location of the structure.

The main causes of ageing are linked to the following phenomena:

erosion, abrasion, impact ;
action of freeze-thaw cycles ;
physico-chemical alteration of concrete ;
concrete shrinkage ;
corrosion of metal reinforcements.

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Main causes of damage to engineering structures

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References

(1) - Enquête du SETRA - Ouvrages d'art réhabilitation : un diagnostique plus sévère que prévu. - Le Moniteur, p. 26, 13 janv. 1995.
(2) - Ministère de l'Équipement, des Transports et du Logement - Recherche innovation en génie civil. -...