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Study of particle packing of plywood, Eucalyptus spp. and Pinus spp. from construction and demolition waste

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European Journal of Wood and Wood Products Aims and scope Submit manuscript

Abstract

Wood from construction and demolition waste (CDW) can be incorporated into composites to produce new materials, contributing to the mitigation of environmental impacts. The objective of this work is to compare the particle size distribution (PSD) of wood particles of plywood, Eucalyptus spp. and Pinus spp., obtained by recycling CDW with the PSD curves proposed by particle packing models described in the literature. Three particle packing models were used for the comparison: the Fuller curve, the Andreasen model and the modified Andreasen model. All three models should represent an ideal PSD used as goal to be achieved. The packing density of these PSD curves was calculated using the Compressible Packing Model (CPM) and measured experimentally. When comparing the experimental PSD of the wood particles to the PSD from the packing models, the results demonstrated that they do not fit exactly. This was expected and since wood particles present unique morphology characteristics, it is possible that an ideal PSD curve used for concrete (packing density models used were originally proposed for the use in concrete technology field) is different from an ideal PSD to be used for wood composites. Thus, packing density determination is needed. The PSD curve from the modified Andreasen model provided higher experimental packing density regardless of wood types. Using particle packing models based on ideal PSD increased the packing density by 19.3% on average, compared with experimental packing density of the individual classes for each wood particle size. This represents savings in the consumption of binder paste when producing mineral composites containing these wood particles using the studied PSD curves.

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Acknowledgements

The authors would like to thank the Postgraduation Program in Civil Engineering at the Federal University of Paraná (PPGEC/UFPR), for the laboratory infrastructure provided, as well as Fundação Araucária and Coordination for the Improvement of Higher Education Personal (CAPES) for financial support through research grants.

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All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by TMSR, HFC, NSK and LFRM. The first draft of the manuscript was written by TMSR, HFC, NSK, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Thaísa Mariana Santiago Rocha.

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Rocha, T.M.S., Campos, H.F., Klein, N.S. et al. Study of particle packing of plywood, Eucalyptus spp. and Pinus spp. from construction and demolition waste. Eur. J. Wood Prod. 80, 1235–1246 (2022). https://doi.org/10.1007/s00107-022-01844-0

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  • DOI: https://doi.org/10.1007/s00107-022-01844-0

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