Post-Flashover fires in light and heavy timber construction compartments

Research output: Contribution to journalArticleScientificpeer-review

28 Citations (Scopus)

Abstract

A series of fire experiments was performed to study the gas temperature development and charring behaviour of timber construction compartments. The measured gas temperatures were 300-500 C lower than predicted by the parametric temperature-time curves of Eurocode 1 for unprotected and insufficiently protected timber structures. For structures protected with a double layer of gypsum plasterboard, the agreement was better. In all cases, however, the prediction was on the safe side. One protective layer of gypsum plasterboard delayed the onset of charring for 20 min. Using two layers, the delay time was doubled. Reduced charring rates for long exposure times were observed, resulting from the increasingly protective effect of the char layer withtime.
Original languageEnglish
Pages (from-to)133-175
JournalJournal of Fire Sciences
Volume20
Issue number2
DOIs
Publication statusPublished - 2002
MoE publication typeA1 Journal article-refereed

Fingerprint

Flashover
Timber
Fires
Gypsum
Gases
Temperature
Time delay
Experiments

Keywords

  • charring
  • qypsum plasterboard
  • large-scale tests
  • post-flashover fires
  • temperature-time curves
  • timber structures
  • wood

Cite this

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title = "Post-Flashover fires in light and heavy timber construction compartments",
abstract = "A series of fire experiments was performed to study the gas temperature development and charring behaviour of timber construction compartments. The measured gas temperatures were 300-500 C lower than predicted by the parametric temperature-time curves of Eurocode 1 for unprotected and insufficiently protected timber structures. For structures protected with a double layer of gypsum plasterboard, the agreement was better. In all cases, however, the prediction was on the safe side. One protective layer of gypsum plasterboard delayed the onset of charring for 20 min. Using two layers, the delay time was doubled. Reduced charring rates for long exposure times were observed, resulting from the increasingly protective effect of the char layer withtime.",
keywords = "charring, qypsum plasterboard, large-scale tests, post-flashover fires, temperature-time curves, timber structures, wood",
author = "Tuula Hakkarainen",
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language = "English",
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}

Post-Flashover fires in light and heavy timber construction compartments. / Hakkarainen, Tuula.

In: Journal of Fire Sciences, Vol. 20, No. 2, 2002, p. 133-175.

Research output: Contribution to journalArticleScientificpeer-review

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AB - A series of fire experiments was performed to study the gas temperature development and charring behaviour of timber construction compartments. The measured gas temperatures were 300-500 C lower than predicted by the parametric temperature-time curves of Eurocode 1 for unprotected and insufficiently protected timber structures. For structures protected with a double layer of gypsum plasterboard, the agreement was better. In all cases, however, the prediction was on the safe side. One protective layer of gypsum plasterboard delayed the onset of charring for 20 min. Using two layers, the delay time was doubled. Reduced charring rates for long exposure times were observed, resulting from the increasingly protective effect of the char layer withtime.

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KW - qypsum plasterboard

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KW - temperature-time curves

KW - timber structures

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