通过SEM、XRD以及TG的分析测试方法，定量分析水泥单矿C₄ AF和C₃ A腐蚀产物的变化规律与腐蚀产物CaCO₃的生成速率系数。实验结果表明，C₄ AF和C₃A在受到CO₂腐蚀后，均有大量团絮状物相产生，但C₃ A腐蚀后产生了比C₄ AF腐蚀后更多的块状、棒状产物；C₄ AF和C₃ A单矿在腐蚀反应后的物相主要是C₃ AH₆和霰石，在腐蚀反应后期C₃ AH₆的相对结晶度降低，霰石的相对结晶度升高；物相定量分析结果表明，C₄AF单矿腐蚀产物CaCO₃的含量高于C₃ A；动力学计算结果表明C₄ AF在腐蚀反应1 d后CaCO₃的摩尔生成率为28.36 mol/d，C₃A试样仅为4.23 mol/d。随着腐蚀反应时间延长至28 d，C₄ AF和C₃ A单矿的腐蚀产物摩尔生成率均持续减小，分别为1.83 mol/d和1.48 mol/d。拟合后C₄AF的腐蚀产物生成速率系数α为32.62，远高于C₃ A单矿的2.74。C₃A单矿在CCUS环境中抗CO₂的腐蚀能力较C₄ AF更强，这不仅为开发抗CO₂腐蚀的高性能水泥材料提供理论指导，也为水泥在CCUS环境中的应用提供了依据。

The variation law of C₄ AF and C₃A corrosion products and the formation rate coefficient of CaCO₃ of cement single ore were quantitatively analyzed by SEM, XRD and TG analysis and test methods. The experimental results showed that both C₄AF and C₃ A produced a large number of flocculent phases after CO₂ corrosion, but C₃ A produced more lumpy and flocculent phases after corrosion than C₄AF corrosion. The relative crystallinity of C₃ AH₆ decreases and the relative crystallinity of aragonite increases in the later stage of corrosion reaction, and the quantitative analysis results show that the content of CaCO₃ in C₄ AF is higher than that of C₃A, and the molar formation rate of CaCO₃ in C₄AF is 28.36 mol/d and that of C₃ A sample is only 4.23 mol/d after 1 day of corrosion reaction. With the extension of the corrosion reaction time to 28 days, the molar formation rate of corrosion products of C₄ AF and C₃A continued to decrease, which was 1.83 mol/d and 1.48 mol/d, respectively. The coefficient of corrosion product formation α rate of C₄ AF was 32.62 after fitting, which was much higher than that of C₃ A single ore (2.74). The corrosion resistance of C₃A ore in CCUS environment is stronger than that of C₄ AF, which not only provides theoretical guidance for the development of high performance cement materials resistant to CO₂ corrosion, but also provides a basis for the application of cement in CCUS environment.