In-field measurement and numerical modelling of air leakage in concrete: From laboratory specimen to structural full-scale - IRSN - Institut de radioprotection et de sûreté nucléaire Accéder directement au contenu
Article Dans Une Revue Construction and Building Materials Année : 2023

In-field measurement and numerical modelling of air leakage in concrete: From laboratory specimen to structural full-scale

Résumé

This work estimates air leakage through concrete porosity for structures by using data obtained in field combined with stochastic finite element (SFE) modelling. For this purpose, a methodology is proposed to evaluate permeability under representative over-pressurization conditions based on in-field measurements under vacuum. This makes it possible to investigate the air leakage through the inner wall of a 1:3 scaled nuclear vessel named the VeRCoRs mock up. Measurements are made for over 80 points scattered on the external face of the inner wall of the structure. Based on the data collected, a statistical analysis quantifies the spatial variation of permeability and contributes to the building of an SFE model of air leakage at the structural scale. Measured and predicted data are in good agreement on the service life of the structure. This shows the relevance of combining in-field measurements during an operational phase and the SFE modelling for better valuation of the structural performance. The lessons learnt from the present work could be useful for the assessment of all structures with durability or mechanical issues that induce a continuous loss of tightness.
Fichier principal
Vignette du fichier
post_print_CONBUILDMAT.pdf (3.09 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Licence : CC BY NC ND - Paternité - Pas d'utilisation commerciale - Pas de modification

Dates et versions

irsn-04106727 , version 1 (25-05-2023)

Licence

Paternité - Pas d'utilisation commerciale - Pas de modification

Identifiants

Citer

S. Multon, Donatien Rossat, Jerome Verdier, David Bouhjiti, Hognon Sogbossi, et al.. In-field measurement and numerical modelling of air leakage in concrete: From laboratory specimen to structural full-scale. Construction and Building Materials, 2023, 385, pp.131410. ⟨10.1016/j.conbuildmat.2023.131410⟩. ⟨irsn-04106727⟩
78 Consultations
32 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More