Solid waste derived clinker design methodology was established based on thermodynamic simulation and experiment validation via the recycling of incinerated sewage sludge ash (ISSA) and recycled concrete fine (RCF). Compared with 1000 °C and 1100 °C, 1200 °C was the optimum temperature for CS-rich clinker synthesis due to the highest simulated belite content after sintering. A utilization rate of 95 % was achieved, accomplishing the maximization of solid waste recycling. Due to the CaCO phase formation by the reaction of high-content belite (46.8 %) with CO, carbonated 1200ARS eco-cement showed higher compressive strength than OPC and other eco-cements. The lowest porosity (18.1 %) with dense microstructure was also obtained by carbonated 1200ARS. Benefiting from the high CO reactivity of belite, 1200ARS displayed the optimum CO sequestration capacity with a higher carbonation degree (30.1 %) than other batches, providing a promising direction for future development of the low-carbon cement industry to achieve environmental sustainability.

中文翻译：

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二元固体废物衍生熟料：原料进料系统设计验证和热力学模拟研究


通过焚烧污水污泥灰分（ISSA）和再生混凝土细粉（RCF）的回收利用，基于热力学模拟和实验验证，建立了固体废物衍生熟料设计方法。与1000℃和1100℃相比，1200℃是富CS熟料合成的最佳温度，因为烧结后模拟贝利特含量最高。利用率达到95%，实现了固废资源化最大化。由于高含量贝利特 (46.8%) 与 CO 反应形成 CaCO 相，碳酸化 1200ARS 生态水泥表现出比 OPC 和其他生态水泥更高的抗压强度。碳酸 1200ARS 还获得了最低的孔隙率 (18.1%) 和致密的微观结构。受益于贝利特的高CO反应活性，1200ARS表现出最佳的CO封存能力，其碳化度（30.1%）高于其他批次，为低碳水泥行业未来发展实现环境可持续发展提供了有前景的方向。