Effect of mixing water types on the time-dependent zeta potential of Portland cement paste
Effect of mixing water types on the time-dependent zeta potential of Portland cement paste
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DOI：
10.1515/secm-2012-0099
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发表时间：
2013-08
期刊：
影响因子：
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通讯作者：
B. Ersoy;S. Dikmen;T. Uygunoğlu;M. Içduygu;T. Kavas;A. Olgun
中科院分区：
文献类型：
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作者：
B. Ersoy;S. Dikmen;T. Uygunoğlu;M. Içduygu;T. Kavas;A. Olgun
Zeta电位的测量在陶瓷、制药、医药、选矿、电子、水泥工业和水处理等工业中有着重要的应用。它提供了新的信息水泥水化，凝胶结构的形成和化学和矿物掺合料的影响。在这项研究中，ZP和pH值的波特兰水泥悬浮液制备重量% 1水泥/水比在四种不同类型的沃茨，即，纯水、自来水和盐水（NaCl和CaCl 2），根据时间进行。此外，进行了以0.34的水-水泥比制备的波特兰水泥浆的维卡试验。在维卡测试之后，对样品进行X射线衍射分析和扫描电子显微镜调查。从这项研究中获得的最重要的结果是，凝固时间和时间依赖的ZP值的波特兰水泥浆有不同的值取决于所使用的混合水类型。在水类型中，具有CaCl 2的水给出最低的ZP绝对值，因此这导致用这种类型的水制备的水泥浆的最小初始和最终凝固时间。
Abstract The measurement of zeta potential (ZP) has important applications in a wide range of industries including ceramics, pharmaceuticals, medicine, mineral processing, electronics, cement industry and water treatment. It provides new information on cement hydration, gel structure formation and the effects of chemical and mineral admixtures. In this study, ZP and pH measurements of Portland cement suspension prepared at wt% 1 cement/water ratio in the presence of four different types of waters, i.e., pure water, tap water, and salted (NaCl and CaCl2) water, were carried out depending on the time. Also, vicat tests of Portland cement pastes prepared at a water-to-cement ratio of 0.34 were performed. After the vicat tests, X-ray diffraction analysis and scanning electron microscopy investigations were performed on the samples. The most important result obtained from this study is that setting time and time-dependent ZP values of Portland cement paste have different values depending on the used mixing water type. Among the water types, water with CaCl2 gives the lowest ZP as absolute value, so this leads to minimum initial and final setting times for the cement paste prepared with this type of water.