摘   要：针对装配式钢筋模板一体化（Integration of reinforcement and framework，IRF）体系采用硫铝酸盐水泥存在成本高、性能调控难度大等问题，基于最紧密堆积理论设计了满足装配式IRF体系性能要求的P·Ⅱ水泥砂浆配合比，研究了该砂浆在不同CO2养护温度（40 ℃、60 ℃）和养护压强（0.3、0.5、0.8 MPa）下的力学性能、水化热、水化产物和孔结构的变化规律，并与60 ℃、常压蒸汽养护组进行了对比。结果表明：60 ℃下，与蒸汽养护相比，CO2养护有效促进了砂浆早期抗压强度发展，建议CO2养护压强为0.5 MPa；CO2养护延长了胶凝材料的水化诱导期，降低了水化放热速率峰值和24 h水化放热量；养护压强对胶凝材料水化动力学的影响不显著；用适量辅助胶凝材料替代水泥细化了硬化水泥浆体的孔结构，且碳减排效果显著。Abstract: In response to the problems of high cost and difficult performance control of sulfoaluminate cement used in the prefabricated integration of reinforcement and framework (IRF) system, a P ·Ⅱ cement mortar mix proportion that meets the performance requirements of the IRF system was designed based on the closest packing theory. The mechanical properties, hydration heat, hydration products, and pore structure of the mortar were studied under different CO2 curing temperatures (40 ℃, 60 ℃) and curing pressures (0.3, 0.5, 0.8 MPa), and compared with the steam curing groups (60 ℃, atmospheric). The results show that under the condition of 60 ℃, compared with steam curing, CO2 curing effectively promotes the development of early compressive strength of mortar, and it is recommended that the CO2 curing pressure be 0.5 MPa. CO2 curing prolongs the hydration induction period of cementitious materials, reduces the peak hydration heat release rate and 24 h hydration heat release. The effect of curing pressure on the hydration kinetics of cementitious materials is not significant. The use of appropriate auxiliary cementitious materials instead of cement can refine the pore structure of the hardened cement slurry, and the carbon emission reduction effect is significant.

廖嘉欣,张永辉,史乐贤,等.CO2养护对装配式钢筋模板一体化（IRF）体系砂浆性能的影响研究[J].混凝土与水泥制品,2026(1):43-48. LIAO J X,ZHANG Y H,SHI L X,et al.Influence of CO2 curing on the performance of mortar for prefabricated integration of reinforcement and framework (IRF) systems[J].China Concrete and Cement Products,2026(1):43-48.