Upcycling Wood Waste into Particleboard by CO2 Curing and Adding Low-carbon Cement

This innovative and low-carbon technology aims to upcycle wood waste into eco-friendly cement-bonded particleboard by adding magnesia cement and adopting the process of carbon dioxide (CO₂) curing. The integration of wood and cement into particleboards has many advantages over the conventional wood materials, e.g. better noise and fire insulation. Compared to traditional cement, low-carbon magnesia cement is more compatible with wood, and improves the stability and mechanical properties of particleboard. Meanwhile, the CO₂ curing process drastically strengthens the magnesia cement. It also facilitates CO₂ sequestration (9 wt.%) and reduces carbon footprint during production. The produced particleboards demonstrates superior features of high flexural strength (12.9 MPa), light weight (1.5 g/cm3 ), thermal insulation (0.29 W/mK), and acoustic insulation (31 dB(A)).