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Study on the Hydration Kinetics of Portland Cement

机译：硅酸盐水泥水化动力学研究

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摘要

A kinetic model originally developed by Tomosawa is analyzed for the hydration of Portland cement. The complicated kinetic equation of Tomosawa model is transformed into three simple equations of simplified model which represent mass transfer, phase-boundary reaction and diffusion process at different stage, respectively. Based on the isothermal calorimetry and the simplified model, the relationship between the degree of reaction and reaction rate is discussed. The derived result could reflect the development of degree of reaction and reaction rate during the cement hydration. The calculation results of simplified model are compared well with the experimental results. Studying the connection among the three processes is helpful to understanding the complicated hydration mechanism of Portland cement.
机译：分析了Tomosawa最初开发的动力学模型，用于硅酸盐水泥的水合作用。将Tomosawa模型的复杂动力学方程转换为三个简化模型的简单方程，分别表示不同阶段的传质，相边界反应和扩散过程。基于等温量热法和简化模型，讨论了反应程度与反应速率之间的关系。所得结果可以反映水泥水化过程中反应程度和反应速率的发展。简化模型的计算结果与实验结果进行了比较。研究这三个过程之间的联系有助于理解硅酸盐水泥的复杂水化机理。

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  • 来源
  • 会议地点 Shanghai(CN)
  • 作者

    Wei Wang; Wu Yao; Yong-qi Wei;

  • 作者单位

    Institute of Smart Construction Materials, School of Materials Science and Engineering, Tongji University, Shanghai 201804, China;

    Institute of Smart Construction Materials, School of Materials Science and Engineering, Tongji University, Shanghai 201804, China;

    Institute of Smart Construction Materials, School of Materials Science and Engineering, Tongji University, Shanghai 201804, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Model; Kinetics; Degree of hydration; Reaction ratio;

    机译：模型;动力学;水合度；反应比;

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