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Fire Technology

Erschienen in:

27.01.2021

Facade Fire Hazards of Bench-Scale Aluminum Composite Panel with Flame-Retardant Core

verfasst von: Aatif Ali Khan, Shaorun Lin, Xinyan Huang, Asif Usmani

Erschienen in: Fire Technology | Ausgabe 1/2023

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Abstract

Façade fires in tall buildings are currently occurring more than once a month globally that are responsible for many casualties and billions of dollars in losses. In particular, the tragic Grenfell Tower fire in London with more than 70 fatalities raised the profile of façade fire hazard. This work used well-controlled irradiation up to 60 kW/m² to re-assess the fire hazard of typical flame-retardant aluminum composite panels (ACPs) with a dimension of 10 cm × 10 cm × 0.5 cm. We found that the vertically oriented ACPs with the “non-combustible” A2-grade and “limited-combustible” B-grade cores could still be ignited above 35 kW/m² and 25 kW/m², after the front aluminum layer peeled off. The peak heat release rate per unit area of these ACPs could be higher than common materials like timber and PVC. Moreover, compared to the B-core panel, the A2-core panel showed a greater fire hazard in terms of a shorter ignition delay time, a higher possibility of the core peel-off, and a longer flaming duration under current test size and fixing condition. Because the ACP is a complex system, its fire hazard is not simply controlled by the core material. The structural failure of ACP in fire, including peel-off, bending, softening and cracking, may further increase the fire hazard depending on the scale effect, boundary and fixing conditions. This research improves our understanding of the systematic fire behaviors of façade panels and helps rethink the fire risk and test methods of the building façade.

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Vorheriger Artikel Special Issue on Facade Flammability and Fire Engineering

Nächster Artikel Improving the Fire Performance of Structural Insulated Panel Core Materials with Intumescent Flame-Retardant Epoxy Resin Adhesive

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Titel: Facade Fire Hazards of Bench-Scale Aluminum Composite Panel with Flame-Retardant Core
verfasst von: Aatif Ali Khan
Shaorun Lin
Xinyan Huang
Asif Usmani
Publikationsdatum: 27.01.2021
Verlag: Springer US
Erschienen in: Fire Technology / Ausgabe 1/2023
Print ISSN: 0015-2684
Elektronische ISSN: 1572-8099
DOI: https://doi.org/10.1007/s10694-020-01089-4

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