Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Elastic behavior of saturated porous materials under undrained freezing

Abstract : The elastic behavior of saturated porous materials under undrained freezing is investigated by using a poromechanical approach. Thermodynamic equilibria are used to describe the crystallization process of the partially frozen solution in bulk state and confined state in pores. By phase transition at freezing, fusion energy, thermal contraction of solid, solution and ice crystals, volume changes of crystallization build up remarkable pore pressure that induces expansion or shrinkage of solid matrix. Owing to the lower chemical potential when pore water mixes with salts, fewer ice forms in pores. Penetration of ice into the porous materials increases the capillary pressure, but limits effect on the pore liquid pressure and the strain of solid matrix. On the contrary, the pore pressure induced by solution density rises as salt concentration increases and causes significant shrinkage of solid matrix. © 2013 The Chinese Society of Theoretical and Applied Mechanics; Institute of Mechanics, Chinese Academy of Sciences and Springer-Verlag Berlin Heidelberg.
Type de document :
Article dans une revue
Liste complète des métadonnées

https://hal-enpc.archives-ouvertes.fr/hal-00946088
Contributeur : Ist Enpc <>
Soumis le : jeudi 13 février 2014 - 13:53:43
Dernière modification le : vendredi 17 juillet 2020 - 17:08:35

Lien texte intégral

Identifiants

Collections

Citation

Q. Zeng, T. Fen-Chong, K.-F. Li. Elastic behavior of saturated porous materials under undrained freezing. Acta Mechanica Sinica/Lixue Xuebao, 2013, 29 (6), pp.827-835. ⟨10.1007/s10409-013-0082-6⟩. ⟨hal-00946088⟩

Partager

Métriques

Consultations de la notice

200