Category: Transient Plane Source
Author(s): Dale P. Bentz
Keywords: building materials, Building Technology, density, Fire Protection, Fire Resistive Materials, Fire Resistive Materials (FRMs), FRMs, Heat Capacity, Mass Loss During Heating, Slug Calorimetry, Temperature, thickness, TPS Method, Transient Plane Source, Transient plane source (TPS)
Abstract: Using a combination of transient plane source (TPS) technique and slug calorimetry, 4 commercially available fire resistive materials (FRMs) are studied from room temperature to 1000°C. The materials studied in this report are two gypsum-based and two calcium-silicate based materials. These materials are heterogeneous and thus when heated to elevated temperatures, the microstructure of the materials may be compromised and various reactions and phase changes may take place over the course of heating. The TPS technique is used to measure the thermal conductivity of the FRMs at room temperature, and the slug calorimeter is used to measure the thermal conductivity at elevated temperatures up to 1000°C. It is found that the thermal conductivity of the FRMs are highly dependent on temperature.
Reference: Journal of Testing and Evaluation, 35, 3 (2007)