Environmental Performance of Wood Bioconcretes with Different Wood Shavings Treatments

Abstract:

The wood bio-concrete (WBC) production is a solution for the advancement of sustainable construction, since it has the potential to recycle waste in the form of shavings generated in wood processing and stock CO₂, contributing for climate change reduction. However, the chemical incompatibility between plant biomass and cementitious matrix leads to the need for previous treatment of wood shavings to application in bio-concretes. In the present study, one heat treatment and two alkaline treatments with immersion in Ca (OH)₂ solution were evaluated using Life Cycle Assessment (LCA) methodology. The environmental modeling was performed by SimaPro, using the Ecoinvent database, and primary data collected in the laboratory. The potential environmental impacts were related to the compressive strength of produced WBC (in MPa) as an ecoefficiency indicator. Considering the functional unit of mechanical performance, the alkaline treatment with two immersions was the one that generated less environmental impacts.

• Periodical: Construction Technologies and Architecture (Volume 1)
• Pages: 69-76
• DOI: https://doi.org/10.4028/www.scientific.net/CTA.1.69
• Online since: January 2022
• Authors: Amanda Lorena Dantas Aguiar*, Carolina Goulart Bezerra, Lucas Rosse Caldas, Anna S. Bernstad, Romildo Dias Toledo Filho
• Keywords: LCA, Wood Bioconcrete, Wood Treatment

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