Experimental analysis of stone wool sandwich composites exposed to constant incident heat fluxes and simulated parametric fires

B. Andres*, J. P. Hidalgo, L. Bisby, P. Van Hees

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An experimental analysis of the fire behavior of stone wool composites with stainless steel and gypsum plasterboard linings was performed. The focus was to characterize the micro-scale behavior of stone wool, and identify the main processes occurring in stone wool composites when exposed to heat. Thermogravimetric analysis was applied to two different wools with varying densities and binder content in air and nitrogen atmospheres at 5, 10, and 20 K/min. Results show a low percentage of mass loss that could be linked to the low fraction of organic binder contained in the wool. Intermediate-scale composite assemblies were tested using the Heat-Transfer Inducing Rate System (H-TRIS). Specimens were composed of stainless steel-stone wool, and gypsum plasterboard-stone wool. Tests were performed at (1) constant low incident heat flux (7 kW/m2), (2) constant high incident heat flux (60 kW/m2), and (3) simulated parametric incident heat exposure. The results of these tests help to identify the relevant phenomena that should be taken into account when modelling building assemblies with stone wool cores (i.e. pyrolysis and combustion of the binder, water transport through the cross-section, and burning of paper).

Original languageEnglish
Title of host publication15th International Conference and Exhibition on Fire and Materials 2017
PublisherInterscience Communications Ltd
Pages503-516
Number of pages14
Volume2
ISBN (Electronic)9781510846746
Publication statusPublished - 1 Jan 2017
Event15th International Conference and Exhibition on Fire and Materials 2017 - San Francisco, United States
Duration: 6 Feb 20178 Feb 2017

Conference

Conference15th International Conference and Exhibition on Fire and Materials 2017
CountryUnited States
CitySan Francisco
Period6/02/178/02/17

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