Despite being considered as a potential carbon capture method, carbonation curing of cement-based materials are still accompanied by serious concerns now. Strength loss and shrinkage can be induced by pre-conditioning and excessive carbonation exposure; Difficulty of inward diffusion of CO₂ leads to relatively low total carbonation degree. In this work, biochar prepared from corn straw at various pyrolysis temperature was added in cement mortars with dosages of 1–5% to solve these above issues. The results indicate that addition of biochar compensates for the strength loss and increase in water penetration of cement mortar caused by carbonation curing. It was also found that biochar-blended cement mortar possesses improved pore structure and promoted internal CO₂ uptake of cement mortar. Besides, environmental evaluation shows that the combination of carbonation curing and biochar can reduce the carbon footprint and energy consumption of concrete products effectively.

尽管被认为是一种潜在的碳捕获方法，但水泥基材料的碳化固化现在仍然伴随着严重的问题。预处理和过度碳化暴露会导致强度损失和收缩；_{CO 2}向内扩散困难，导致总碳化程度较低。在这项工作中，将玉米秸秆在不同热解温度下制备的生物炭添加到水泥砂浆中，用量为 1-5%，以解决上述问题。结果表明，添加生物炭可以弥补因碳化养护引起的水泥砂浆强度损失和水渗透增加。还发现生物炭混合水泥砂浆具有改善的孔隙结构并促进内部CO ₂水泥砂浆的吸收。此外，环境评价表明，碳化养护与生物炭相结合可有效降低混凝土制品的碳足迹和能耗。