Minimization of the volume of the wood-based barrier for 2-hour fireproof wooden beam: Bench-scale and full-scale furnace tests on fire-retardant barrier of japanese cedar glulam

Taiga SAIYOSHI, Yuji HASEMI, Tomoyo HOKIBARA, Gen AOYAMA, Ryo TAKASE, Daisuke KAMIKAWA, Jun Ichi SUZUKI

Research output: Contribution to journalArticlepeer-review

Abstract

In the 2-hour fireproof wooden beam composed of Japanese cedar, the minimization of wood-based fire protection barrier volume is studied to reduce the weight of elements. Through two types of bench-scale tests and one full-scale test, this study clarified that the optimum thicknesses of fire-retardant wood to ensure 2-hour fireproof performance in the condition of a 25mm thick sacrificial layer. The thicknesses at the vertical side part and the bottom part of the elements are 75 mm and 100mm, respectively. The target amount of the fire-retardant agent should be contained over 180 kg/m3.

Original languageEnglish
Pages (from-to)1-11
Number of pages11
JournalJournal of Environmental Engineering (Japan)
Volume86
Issue number779
DOIs
Publication statusPublished - 2021 Jan

Keywords

  • Bench-scale test
  • Fire-retardant wood
  • Fireproof construction
  • Japanese cedar
  • Self-extinguishment
  • Unloaded fire test

ASJC Scopus subject areas

  • Environmental Engineering

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