| 水泥水化反应与混凝土自收缩的动力学模型 |
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| 引用本文： | 阎培渝,郑峰.水泥水化反应与混凝土自收缩的动力学模型[J].铁道科学与工程学报,2006,3(1):56-59. |
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| 作者姓名： | 阎培渝 郑峰 |
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| 作者单位： | 清华大学,土木工程系,北京,100084 |
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| 摘 要： | 基于水泥的多组分和多尺度水化反应的原理,分别建立了水泥的水化反应和混凝土自收缩的动力学模型。这2个模型均采用两阶段的经验公式,分别用于模拟水化反应和自收缩的快速发展阶段与平稳变化阶段。实测数据检验结果表明,这2个模型可以用于模拟硅酸盐水泥的等温水化放热曲线,以及用硅酸盐水泥配制的混凝土的自收缩发展过程。
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| 关 键 词： | 动力学模型 自收缩 水化反应 水泥 混凝土 |
| 文章编号： | 1672-7029(2006)01-0056-04 |
| 修稿时间： | 2005年12月11 |
Dynamic models of hydration reaction of Portland cement and autogenous shrinkage of concrete |
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| YAN Pei-yu,ZHENG Feng.Dynamic models of hydration reaction of Portland cement and autogenous shrinkage of concrete[J].Journal of Railway Science and Engineering,2006,3(1):56-59. |
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| Authors: | YAN Pei-yu ZHENG Feng |
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| Abstract: | The dynamic models of hydration reaction of cement and autogenous shrinkage of concrete were constructed respectively based on the multi-composition and multi-scale hydration reaction of cement.In both models two-step regressive equations are adopted to simulate the step of quick development and the step of even change of hydration reaction and autogenous shrinkage.The experimental results show that these models can express precisely the isotherm hydration heat emission curve of Portland cement and the autogenous shrinkage process of concrete prepared with Portland cement. |
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| Keywords: | dynamic model autogenous shrinkage hydration reaction cement concrete |
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