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ABSTRACT
Apart from design, calculation, drawing and execution errors, physico-chemical actions can play a major role in the pathology of reinforced concrete. Among them, shrinkage, temperature variations and thermal stress are responsible for about half of such disorders, which can induce cracking and steel corrosion. Creep and thus deformations that increase over time are also a major cause of accidents. More specific works are the subject of quasi-recurrent pathologies such as reservoirs, casings and prefabricated constructions; the latter nonetheless present comparatively low pathologies. In conclusion, the technology of concrete cannot be improvised and requires a specific study which must be conducted by specialized engineering offices.
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Read the articleAUTHOR
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Jean DELEFOSSE: Ingénieur E.T.P. – Graduate of the Centre des hautes études de la construction – European engineer – Former lecturer at the Ecole spéciale des Travaux publics - Expert before the Paris Court of Appeal and the Paris and Versailles Administrative Courts of Appeal (Honorary)
INTRODUCTION
This study, devoted to the pathologies affecting reinforced concrete structures, concludes with an examination of the physico-chemical actions of a few special cases and the pathologies affecting certain specific structures (reservoirs, casings, etc.).
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KEYWORDS
risk | materials | building | Construction Industrie | reinforced concrete | resistance to corrosion | physico-chemical pathologies
This article is included in
Pathologies and building rehabilitation
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Reinforced concrete pathologies
Physico-chemical actions
Bibliography
Standards and norms
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Unified technical documents (DTU)
- Fondations profondes. - 13.2 -
- Dallages. - 13.3 -
- Fondations superficielles. - 13.11 -
- Règles pour le calcul des fondations superficielles. - 13.12 -
- Cuvelage. - 14.1 -
- Gros œuvre en maçonnerie des toitures destinées à recevoir un revêtement d'étanchéité. - 20.12 -
- Exécution des travaux...
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