Effect of wetting and fungal degradation on performance of nailed timber connections

Luis Yermán Martinez; Yuhao Zhang; Jiangwan He; Martin Xiao; Lisa-Mareike Ottenhaus; Jeffrey J Morrell

doi:10.1016/j.conbuildmat.2022.129113

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Effect of wetting and fungal degradation on performance of nailed timber connections

Journal article

Peer reviewed

Effect of wetting and fungal degradation on performance of nailed timber connections

Luis Yermán Martinez, Yuhao Zhang, Jiangwan He, Martin Xiao, Lisa-Mareike Ottenhaus and Jeffrey J Morrell

Construction and Building Materials, Vol.353, pp.1-10

2022

DOI: https://doi.org/10.1016/j.conbuildmat.2022.129113

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Abstract

timber connections

decay

Fomitopsis ostreiformis

Pycnoporus coccineus

white rots

brown rots

ultimate strength

slash pine

galvanized nails

The effects of wetting and exposure to two decay fungi were evaluated on nailed slash pine sapwood timber assemblies. Sterilization had no significant effect on connection properties, but exposure to a brown (Fomitopsis ostreiformis) or a white rot fungus (Pycnoporus coccineus) was associated with 40–60 % losses in ultimate strength over 34 weeks. Attempts to more closely assess changes in wood around the fasteners using localized Janka hardness or longitudinal compression were confounded by density differences between earlywood and latewood. The results highlight the effects of decay on connector behaviour and suggest the need for more precise methods for characterizing the environment around the fastener.

Details

Title: Effect of wetting and fungal degradation on performance of nailed timber connections
Authors: Luis Yermán Martinez (Corresponding Author) - University of the Sunshine Coast, Queensland, National Centre for Timber Durability and Design Life
Yuhao Zhang (Author) - University of Queensland
Jiangwan He (Author) - University of Queensland
Martin Xiao (Author) - University of Queensland
Lisa-Mareike Ottenhaus (Author) - University of Queensland
Jeffrey J Morrell (Author) - University of the Sunshine Coast, Queensland, National Centre for Timber Durability and Design Life
Publication details: Construction and Building Materials, Vol.353, pp.1-10
Publisher: Elsevier BV
DOI: 10.1016/j.conbuildmat.2022.129113
Organisation Unit: Forest Research Institute; University of the Sunshine Coast, Queensland; National Centre for Timber Durability and Design Life
Language: English
Record Identifier: 99676397602621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Construction & Building Technology; Engineering, Civil; Materials Science, Multidisciplinary

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