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中文摘要：
通过选择性溶解方法,进行硫铝酸钙（C4A3S珔）的定量分析,并结合X线衍射（XRD）定量分析确定其结果的精度。同时也给出了这2种方法用于测试水泥熟料中C4A3S珔的具体步骤与方法,为C4A3S珔的定量分析提供方便。系统地比较选择性溶解和XRD定量计算得到的C4A3S珔定量结果。结果表明：2种方法都能得到较好的定量结果;XRD法测定结果偏高,结果波动较大;化学法测定结果偏低,数据更加稳定。
英文摘要：
Quantitative analysis of C4A3S^-on cement clinker by chemical extraction accompanied with Xray diffraction（ XRD） was carried out,and the corresponding precisions from both methods were estimated,and the determination procedures of both techniques were documented for providing the quantitative analysis of C4A3^-S. Systematic comparison between two methods was made. Results showed that both approaches could yield reasonable C4A3S^-content; the data obtained from XRD method were higher with larger fluctuation,and the data obtained from the chemical method were lower but more stable.
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