Investigation of Carbon Sequestration and Water-gas Transport Parameters of Steel Slag-bentonite mixture

This dataset contains experimental results on the carbon sequestration capacity and barrier performance of steel slag as a landfill cover material. It includes measurements from incubation tests examining the effects of CO₂ concentration, water content, bentonite content, and pressure conditions on carbonation. Flexible-wall test data on gas permeability, diffusion coefficient, and hydraulic conductivity before and after carbonation are also provided. The data support findings that increasing compaction or bentonite content significantly reduces permeability, with post-carbonation parameters decreasing by over 20%.

本数据集收录了钢渣作为填埋覆盖材料（landfill cover material）时的固碳能力（carbon sequestration）与阻隔性能相关实验结果。其中包含针对二氧化碳（CO₂）浓度、含水率、膨润土（bentonite）掺量及压力条件对碳酸化作用（carbonation）影响的培养试验（incubation test）测试数据；同时收录了柔性壁渗透试验（flexible-wall test）获得的碳酸化作用前后的气体渗透率（gas permeability）、扩散系数（diffusion coefficient）与水力传导系数（hydraulic conductivity）相关数据。本数据集佐证了如下研究结论：提升压实度（compaction）或膨润土掺量可显著降低材料渗透率，且经碳酸化作用后的相关参数降幅超过20%。