Chen et al. (2025): Biochar-enhanced cement composites as carbon sink under accelerated carbonation curing: Carbon sequestration potential stimulated by biochar porosity
Yuyang Chen, Binggen Zhan, Binglin Guo, Deyin Tian, Hongcen Li, Ping Ye, Huyong Qin, Peng Gao, Qijun Yu, IN: Construction and Building Materials, https://doi.org/10.1016/j.conbuildmat.2025.143005
Biochar is a potential candidate for carbon sequestration in cement composites due to its negative-carbon characteristics. However, the exact effect of biochar porosity on carbon sequestration behavior of cement composites has not been fully elucidated. In this study, biochar was classified into large-porosity biochar (LPB), medium-porosity biochar (MPB), and fine-porosity biochar (FPB) based on the widely applied particle size gradient. The effects of biochar with different porosities on carbon sequestration process and behavior of cement mortar were investigated under accelerated carbonation curing (ACC).