EDF Study of 10-Year Concrete Creep under Unidirectional and Biaxial Loading: Evolution of the Poisson Coefficient under Sealed and Unsealed Conditions

L. Charpin, Y. Le Pape, E. Coustabeau, B. Masson, J. Montalvo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

13 Scopus citations

Abstract

The post-tensioned inner concrete containment building of nearly half of the French nuclear power plants has the role of barrier against potential radiological release, since these containments buildings have no metallic liner. Hence, the integrity of concrete and the stability of post-tensioning are of paramount importance. Since the variation of post-tensioning is partly due to concrete creep, EDF has been interested in the subject for more than two decades. This article presents the results of experiments performed on a concrete similar to that of a concrete containment building, with an emphasis on the bidimensional nature of creep, on the basis of 1D and 2D tests that were performed at EDF. The evolution of the creep Poisson ratio is discussed as well as its use by different authors. Creep is then analyzed in terms of deviatoric and volumetric components. We show that assuming a constant Poisson ratio is a good assumption.

Original languageEnglish
Title of host publicationCONCREEP 2015
Subtitle of host publicationMechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures - Proceedings of the 10th International Conference on Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures
EditorsJohann Kollegger, Christian Hellmich, Bernhard Pichler
PublisherAmerican Society of Civil Engineers (ASCE)
Pages1381-1390
Number of pages10
ISBN (Electronic)9780784479346
DOIs
StatePublished - 2015
Event10th International Conference on Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures, CONCREEP 2015 - Vienna, Austria
Duration: Sep 21 2015Sep 23 2015

Publication series

NameCONCREEP 2015: Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures - Proceedings of the 10th International Conference on Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures

Conference

Conference10th International Conference on Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures, CONCREEP 2015
Country/TerritoryAustria
CityVienna
Period09/21/1509/23/15

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