This study evaluates the environmental impacts of workable wood bio-concretes (WBC). The WBC is composed of wood shavings, Portland cement (CEM), and two Supplementary Cementitious Materials (SCMs): metakaolin (MK) and fly ash (FA). A Life Cycle Assessment (LCA) was performed on seven WBC mixtures containing different contents of SCMs. When the compressive strength was used as a functional unit, the mixture containing 40% MK and 10% FA achieved the lowest values in most impact categories. We concluded that the CEM replacement by SCMs is a promising strategy to reduce the environmental impacts of the WBC, especially the climate change impact.

Environmental impact assessment of wood bio-concretes: Evaluation of the influence of different supplementary cementitious materials

Pittau F.;
2021

Abstract

This study evaluates the environmental impacts of workable wood bio-concretes (WBC). The WBC is composed of wood shavings, Portland cement (CEM), and two Supplementary Cementitious Materials (SCMs): metakaolin (MK) and fly ash (FA). A Life Cycle Assessment (LCA) was performed on seven WBC mixtures containing different contents of SCMs. When the compressive strength was used as a functional unit, the mixture containing 40% MK and 10% FA achieved the lowest values in most impact categories. We concluded that the CEM replacement by SCMs is a promising strategy to reduce the environmental impacts of the WBC, especially the climate change impact.
Calcination
Climate change
Fly ash
LCA
Metakaolin
Wood shavings
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/1156705
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