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聚合物改性水泥水化程度测定方法比较

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Abstract:

介绍了当前测试水泥水化程度的几种方法水化热法、化学结合水法、氢氧化钙含量测定法和背散射电子图像分析法。比较了这些方法对聚合物改性水泥水化程度测试的适用性和局限性。聚合物由于改变了水泥水化进程和水化产物的组成、其本身热分解的温度又与水化产物相近，在多种测试方法中都会对水泥水化程度测试带来干扰，使得测试结果存在较大的偏差。而背散射电子图像分析法是基于某一龄期未水化颗粒占原始颗粒的比例来表征水化程度的，而与水化过程和水化产物的组成无关，是测试聚合物存在下水泥水化程度的一种可靠方法。

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