ABSTRACT
Upcycling industrial wastes into added-value products remains one of the most effective and long-term solutions to reduce anthropogenic carbon emissions. Paper and paperboard production in the world averages 400 million metric tons per year. Biomass ash (BMA) is one of the wastes generated during production with scarce reuse outlets. The valorization of BMA as supplementary cementitious material in concrete manufacturing can contribute to decrease CO2 emissions from cement production while offers a sustainable waste management strategy for the paper sector. The primary focus of this work was to provide fundamental understanding on how BMA affects the rheological properties of cement pastes. The findings offer insightful information on BMA concentration thresholds and a strong groundwork for the development of sustainable cementitious pastes containing high content of bio-derived wastes envisioning additive manufacturing processes.
