<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The research investigated changes in post fire density and strength properties of Nigerian wood species used for construction. The selected species are: <italic>Terminalia superba</italic> (Afara), <italic>Milicia excels</italic> (Iroko), <italic>Nauclea diderrichii</italic> (Opepe), <italic>Khaya ivorensis</italic> (Mahogany), <italic>Mansonia altissima</italic> (Mansonia), <italic>Tectona grandis</italic> (Teak). Densities and strength properties of the species were determined at Moisture Contents (MC) of 9.0, 12.0, and 15.0%. Species were exposed to fire at various temperature ranges. The results revealed that at 9, 12 and 15%MC, Opepe had the highest density values of 630±28.85kg/m³, 686±22.64kg/m³ and 752±17.22 kg/m³ respectively. At 9%MC, Mahogany had the lowest density (439±10.58kg/m³) while at 12 and 15%MC, Afara had the lowest density values of 444±4.18kg/m³ and 469±7.07kg/m³ respectively. Post fire exposure revealed that Afara had the highest percentage loss in density 29.2% and strength properties, while both Iroko and Mahogany exhibited the lowest percentage loss in both density and strength properties.</p></abstract>

The research investigated changes in post fire density and strength properties of Nigerian wood species used for construction. The selected species are: Terminalia superba (Afara), Milicia excels (Iroko), Nauclea diderrichii (Opepe), Khaya ivorensis (Mahogany), Mansonia altissima (Mansonia), Tectona grandis (Teak). Densities and strength properties of the species were determined at Moisture Contents (MC) of 9.0, 12.0, and 15.0%. Species were exposed to fire at various temperature ranges. The results revealed that at 9, 12 and 15%MC, Opepe had the highest density values of 630±28.85kg/m³, 686±22.64kg/m³ and 752±17.22 kg/m³ respectively. At 9%MC, Mahogany had the lowest density (439±10.58kg/m³) while at 12 and 15%MC, Afara had the lowest density values of 444±4.18kg/m³ and 469±7.07kg/m³ respectively. Post fire exposure revealed that Afara had the highest percentage loss in density 29.2% and strength properties, while both Iroko and Mahogany exhibited the lowest percentage loss in both density and strength properties.

Fire resistance properties of some selected tropical timber species from South-western Nigeria after fire exposure

Selected Scientific Papers - Journal of Civil Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

The research investigated changes in post fire density and strength properties of Nigerian wood species used for construction. The selected species are:...

Fire resistance properties of some selected tropical timber species from South-western Nigeria after fire exposure

Published Online: Apr 30, 2020

Page range: 61 - 72

DOI: https://doi.org/10.1515/sspjce-2019-0018

Keywords
Nigeria wood, wood density, strength properties, fire resistance

© 2019 Oluwaseun Adedapo Adetayo et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fire resistance properties of some selected tropical timber species from South-western Nigeria after fire exposure

Published Online: Apr 30, 2020

Page range: 61 - 72

DOI: https://doi.org/10.1515/sspjce-2019-0018

KeywordsNigeria wood, wood density, strength properties, fire resistance

© 2019 Oluwaseun Adedapo Adetayo et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
Nigeria wood, wood density, strength properties, fire resistance