Temperature dependence of the sorption isotherms of cement-based materials: Heat of sorption and Clausius–Clapeyron formula - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Accéder directement au contenu
Article Dans Une Revue Cement and Concrete Research Année : 2009

Temperature dependence of the sorption isotherms of cement-based materials: Heat of sorption and Clausius–Clapeyron formula

Résumé

In the field of radioactive waste management the concrete structures are expected to undergo significant heating due to the waste thermal power and significant drying (in the French design, the temperature is not expected to exceed 80°C). The durability assessment of such structures thus requires the knowledge of the evolution of the water vapour sorption properties versus temperature. The latter can be easily estimated using the Clausius-Clapeyron (CC) equation: the approach presented hereafter requires the knowledge of the isosteric heat of adsorption and one desorption isotherm (at ambient or any other temperature). Moreover, it is shown that using the CC equation and the desorption isotherms at two different temperatures, it is possible to estimate accurately the desorption isotherm at any other temperature.
Fichier principal
Vignette du fichier
CCR-39(11)-1060-67.pdf (1018.18 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

cea-03293509 , version 1 (21-07-2021)

Identifiants

Citer

Stéphane Poyet, Sébastien Charles. Temperature dependence of the sorption isotherms of cement-based materials: Heat of sorption and Clausius–Clapeyron formula. Cement and Concrete Research, 2009, 39, pp.1060 - 1067. ⟨10.1016/j.cemconres.2009.07.018⟩. ⟨cea-03293509⟩

Collections

CEA DEN ISAS
18 Consultations
578 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More