A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Heat and moisture transfer through a steel stud gypsum board assembly exposed to fire
Highlights ► We study the thermal behaviour of a gypsum board assembly exposed to fire conditions. ► We examine the effect of different physical phenomena when introduced in the model. ► Vapor migration modelling improves significantly the temperature plateau predictions. ► Convection and radiation modelling inside the cavity improves temperature predictions. ► Implementation of all the above phenomena improves the predictions.
Abstract An assembly of gypsum boards fixed along their centre to a steel stud with a cavity between its two facings has been subjected to the standard fire of ISO 834. A model was developed to simulate the temperature evolution in the assembly measured at different distances from the fireside. Using measured thermal properties as functions of temperature, in combination with models taking into account radiation and convection in the wall cavity as well as mass transfer inside the gypsum boards led to a fairly good reproduction of the measured data. The fire tests were stopped immediately after the exposed gypsum layer showed ablation, which happened shortly after 60min of exposition.
Heat and moisture transfer through a steel stud gypsum board assembly exposed to fire
Highlights ► We study the thermal behaviour of a gypsum board assembly exposed to fire conditions. ► We examine the effect of different physical phenomena when introduced in the model. ► Vapor migration modelling improves significantly the temperature plateau predictions. ► Convection and radiation modelling inside the cavity improves temperature predictions. ► Implementation of all the above phenomena improves the predictions.
Abstract An assembly of gypsum boards fixed along their centre to a steel stud with a cavity between its two facings has been subjected to the standard fire of ISO 834. A model was developed to simulate the temperature evolution in the assembly measured at different distances from the fireside. Using measured thermal properties as functions of temperature, in combination with models taking into account radiation and convection in the wall cavity as well as mass transfer inside the gypsum boards led to a fairly good reproduction of the measured data. The fire tests were stopped immediately after the exposed gypsum layer showed ablation, which happened shortly after 60min of exposition.
Heat and moisture transfer through a steel stud gypsum board assembly exposed to fire
Kontogeorgos, D. (author) / Ghazi Wakili, K. (author) / Hugi, E. (author) / Founti, M. (author)
Construction and Building Materials ; 26 ; 746-754
2011-06-23
9 pages
Article (Journal)
Electronic Resource
English
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