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Towards a Methodology for the Characterization of Fire Resistive Materials With Respect to Thermal Performance Models.


pdf icon Towards a Methodology for the Characterization of Fire Resistive Materials With Respect to Thermal Performance Models. (379 K)
Bentz, D. P.; Prasad, K. R.; Yang, J. C.

Fire and Materials, Vol. 30, No. 4, 311-321, July/August 2006.

Keywords:

fire resistant materials; methodology; density effects; heat capacity; thermal conductivity; enthalpy; thermophysical properties; temperature; gypsum; durability; equations

Abstract:

A methodology is proposed for the characterization of fire resistive materials with respect to thermal performance models. Typically in these models, materials are characterized by their densities, heat capacities, thermal conductivities, and any enthalpies (of reaction or phase changes). For true performance modelling, these thermophysical properties need to be determined as a function of temperature for a wide temperature range from room temperature to over 1000DG C. Here, a combined experimental/theoretical/modelling approach is proposed for providing these critical input parameters. Particularly, the relationship between the three-dimensional microstructure of the fire resistive materials and their thermal conductivities is highlighted.