Overview
![](/assets/images/picto-drapeau-france-3a76576a5d60a512053b4612ab58dae5.png)
ABSTRACT
A loss of infrastructures appeared during the post second war period. To face this issue, public authorities asked civil engineering to new ones with a non-flexible time constraint. Thatiswhy civil engineers have sometimes answered without taking into account sustainability aspects in thedesignstage.Nowadays,manystakeholdersreportdegradationscausedbycorrosionofthe rebars.
In this paper, the basis of this phenomenon are first described. Then, the main simulation strategies to account for corrosion in the mechanical model are presented. Finally, an illustrative structural case study shows some specific aspects on which attention should be paid.
Read this article from a comprehensive knowledge base, updated and supplemented with articles reviewed by scientific committees.
Read the articleAUTHOR
-
Dr Benjamin RICHARD: HDR, Ing. Head of the Structural Performance Modeling and Analysis Laboratory - Chairman of the Scientific and Technical Committee of the French Earthquake Engineering Association IRSN, (Fontenay aux Roses, France)
INTRODUCTION
After the Second World War, there was a great need for infrastructure. Faced with the challenge of reconstruction, public authorities turned to architects and civil engineers, who had to provide rapid responses. In this context, the answers they came up with sometimes failed to fully integrate the notions of durability of civil engineering structures. Today, all these infrastructures constitute a legacy and a heritage whose functionality in service must be maintained.
Examples include engineering structures and rail bridges used by all road and rail users. However, as mentioned in the Senate information report , structure managers have reported significant signs of damage caused by the interaction between the external environment and the materials making up existing structures. Their durability is clearly affected, sometimes leading to a loss of serviceability or even structural safety. One of the major causes of this loss of performance has been identified as corrosion of the reinforcement present in reinforced concrete. This phenomenon is liable to develop either through carbonation, or through the penetration of chloride ions into the embedding concrete. This is when corrosion products, also known as rust, appear. Their formation and subsequent expansion generate tensile stresses which, once the concrete's tensile strength is exceeded, lead to the appearance of cracks. From a practical point of view, as soon as the first cracks are noticed on the concrete surface, corrosion has generally reached an advanced stage, and corrective maintenance actions need to be launched. This entails significant costs .
In this way, the evolution of the mechanical consequences associated with the development of corrosion in reinforced concrete reinforcement can be considered in the case of existing structures. Moreover, based on the experience acquired since the 1950s, this point must be taken into account for new structures of all types (design, in-service monitoring, maintenance). Providing answers to the question of how best to anticipate the consequences of this pathology is therefore a major challenge. To this end, a great deal of work has been carried out by national and international scientific communities. Examples include the APPLET ,...
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
![](/assets/images/logo-eti-286623ed91fa802ce039246e516e5852.png)
The Ultimate Scientific and Technical Reference
KEYWORDS
steel | Concrete | Corrosion | building | models
This article is included in
Pathologies and building rehabilitation
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Behavior of existing reinforced concrete structures
Bibliography
- (1) - Sécurité des ponts : éviter un drame. - Rapport d'information du Sénat n°609 déposé le déposé le 26 juin 2019 (2018). https://www.senat.fr/rap/r18-609/r18-609.html .
- (2)...
Standards and norms
- Eurocode 2: Design of concrete structures—Part 1-1: General rules and rules for buildings. Brussels, Belgium - Eurocode - 2004
Directory
Laboratories – Design offices – Schools – Research centers (non-exhaustive list)
Université Gustave Eiffel, Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR), Département Matériaux et Structures (MAST),
Experimentation and Modeling for Civil and Urban Engineering Laboratory (EMGCU)
Physical-chemical behavior and...
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
![](/assets/images/logo-eti-286623ed91fa802ce039246e516e5852.png)
The Ultimate Scientific and Technical Reference