Response of stone wool–insulated building barriers under severe heating exposures

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

This article presents the experimental results of stone wool–layered sandwich constructions, with either steel or gypsum claddings, tested under four different heating exposures: 7 kW/m2 incident radiant heat flux exposure, 60 kW/m2 incident radiant heat flux exposure, parametric time–temperature curve exposure and ISO 834 standard time–temperature exposure. The test apparatus used were a movable radiant panel system, a mid-scale furnace (1.5 m3) and a large-scale furnace (15 m3). The results show that reduced-scale tests are capable of reproducing the heat transferred through the construction at large scale provided there is limited mechanical degradation. The results indicate that the availability of oxygen is fundamental to the fire behaviour of the sandwich composites tested. Reactions occurring in stone wool micro-scale testing, such as oxidative combustion of the binder or crystallisation of the fibres, have a limited effect on the temperature increase when wool is protected from air entrainment.

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • Danish Institute of Fire and Security Technology
  • University of Queensland
  • University of Edinburgh
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Husbyggnad

Nyckelord

Originalspråkengelska
Sidor (från-till)315-341
Antal sidor27
TidskriftJournal of Fire Sciences
Volym36
Utgåva nummer4
StatusPublished - 2018 jul 1
PublikationskategoriForskning
Peer review utfördJa