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首页> 外文会议>International Conference on Materials Science and Engineering Technology >Crystal Structure and Hydration Characteristics of Tricalcium Silicate Doped with Magnesium Oxide
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Crystal Structure and Hydration Characteristics of Tricalcium Silicate Doped with Magnesium Oxide

机译：氧化镁掺杂硅酸钙的晶体结构和水化特性

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The research investigates various methods to identify magnesium oxide influences on the crystal structure and hydration properties of tricalcium silicate. The f-CaO content of the clinkers were analyzed by chemical analysis. The complex disordered superstructure of the tricalcium silicate has been studied by a joint XRD, NMR and TEM. The results show that MgO exerts a remarkable influence on the polymorphisms of C_3S. Mg is not only substitutional atom but also interstitial atom in the crystal lattice of tricalcium silicate. The HRTEM pattern of C_3S doped with MgO is covered by the various irregular lattice. The addition of appropriate amount of MgO in raw meal can change the formation kinetic of C_3S, slightly perturb the environment of (SiO_4)~(4-) tetrahedral, modify the crystal structure of C_3S and affect the hydration activity. Doped with MgO in the raw meal can slow down the hydration rate of alite slightly in early stage.
机译：该研究研究了各种方法，以鉴定氧化钙对硅酸钙的晶体结构和水化性能的氧化镁影响。通过化学分析分析熟料的F-CAO含量。已经通过关节XRD，NMR和TEM研究了硅酸钙的复杂无序的上部结构。结果表明，MgO对C_3S的多态性产生了显着影响。 Mg不仅是替代原子，而且在硅酸钙的晶格中也是替代原子。用MgO掺杂的C_3S的HRTEM模式由各种不规则晶格覆盖。加入适量的原料膳食可以改变C_3S的形成动力学，略微扰动（SiO_4）〜（4-）四面体的环境，改变C_3S的晶体结构并影响水合活性。掺杂在原始膳食中的MgO可以减缓早期略微略微缩小水合速度。

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