EXPERIMENTAL STUDY OF LOCAL SOLID WOOD POST-FIRE BEHAVIOUR

Authors

  • Ni Nyoman Kencanawati Postgraduate Program of Civil Engineering, Mataram University
  • B Anshari Postgraduate Program of Civil Engineering, Mataram University
  • J Fajrin Postgraduate Program of Civil Engineering, Mataram University
  • Hariyadi Hariyadi Postgraduate Program of Civil Engineering, Mataram University
  • A Beriman Graduated Student of Civil Engineering, Mataram University

DOI:

https://doi.org/10.30737/ukarst.v4i2.909

Keywords:

Char Layer, Local Solid Wood, Post-Behaviour, Pyrolysis Zone

Abstract

When wood structures are exposed to high temperatures, they will decompose to provide a char layer and pyrolysis zone, an insulating material that inhibits further degradation. This experimental study aims to determine the char thickness and pyrolysis of solid wood exposed to fire for 30, 45, and 60 minutes. The post-fire shear strength has also been evaluated. The solid woods were locally from Nusa Tenggara Island, namely Jati Putih, Bajur, and Rajumas. According to the Indonesian National Standard of the heating curve for structures, the temperature growth was SNI-1741: 2008. Obtained The char layer's highest average thickness was within 60 minutes of combustion with the highest temperature of 1055oC. The char layer for Jati Putih, Bajur, and Rajumas are 2.12 mm, 7.89 mm, and 6.53 mm. Meanwhile, the pyrolysis layers are 8.78 mm, 9.13 mm, and 14.82 mm, respectively, for Jati Putih, Bajur, and Rajumas. Besides, the post-fire shear strength of all wood species shows an increase in shear strength in the core. Wood can still sustain the load during a fire because there is a char layer preventing the core section from immediately exposed to the fire.    

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Published

2020-10-31

How to Cite

Kencanawati, N. N., Anshari, B., Fajrin, J., Hariyadi, H., & Beriman, A. (2020). EXPERIMENTAL STUDY OF LOCAL SOLID WOOD POST-FIRE BEHAVIOUR. UKaRsT, 4(2), 207–221. https://doi.org/10.30737/ukarst.v4i2.909

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