Influence of the microstructure properties on the degradation of concrete submitted to external sulphate attacks - Institut de Recherche en Génie Civil et Mécanique Accéder directement au contenu
Communication Dans Un Congrès Année : 2008

Influence of the microstructure properties on the degradation of concrete submitted to external sulphate attacks

Résumé

The study presented in this paper is aimed at developing experimental and numerical tools to assess performances of concrete exposed to sulphate attacks. The experimental test is applied to mortars in order to compare different binders. It consists in immersing mortar specimens in sodium sulphate solution and monitoring mass, expansion and elastic modulus. It showed significant differences between low and high C3A cements and between Portland and blended cements. On the other hand, simulations based on a finite difference model and homogenization methods have been performed and compared to experiments. Results are sensitive to the degree of hydration of cement phases and microstructure properties. It showed that this approach is able to take into account changes in chemical composition of the binder and of the mortar mixtures.
Fichier principal
Vignette du fichier
Roziere2008.pdf (260.87 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-01008336 , version 1 (05-05-2021)

Licence

Paternité

Identifiants

  • HAL Id : hal-01008336 , version 1

Citer

Emmanuel Rozière, Frederic Grondin, Ahmed Loukili. Influence of the microstructure properties on the degradation of concrete submitted to external sulphate attacks. Second Euro Mediterranean in Advances on Geomaterials and Structures, May 2008, Hammamet, Tunisia. ⟨hal-01008336⟩
53 Consultations
13 Téléchargements

Partager

Gmail Facebook X LinkedIn More