| Model Analysis of Initial Hydration and Strueture Forming of Portland Cement |
| |
| 引用本文： | 董荣珍. Model Analysis of Initial Hydration and Strueture Forming of Portland Cement[J]. 武汉理工大学学报(材料科学英文版), 2007, 0(4) |
| |
| 作者姓名： | 董荣珍 |
| |
| 作者单位： | School of |
| |
| 基金项目： | the“973”project(2001CB610704-3) |
| |
| 摘 要： | The auto efficiently hydration heat arrangement and the non-contacting electrical resistivity device were used to test the thermology effect and the resistivity variation of Portland cement hydration. The structure forming model of Portland cement initial hydration was established through the systematical experiments with different cements,the amount of mixing water and the chemical admixture.The experimental results show that,the structure forming model of cement could be divided into three stages,i e,solution-solution equilibrium period,structure forming period and structure stabilizing period.Along with the increase of mixing water,the time of inflexion appeared is in advance for thermal process of cement hydration and worsened for the structure forming process.Comparison with the control specimen,adding Na_2SO_4 makes the minimum critical point lower,the flattening period shorter and the growing slope after stage one steeper.So the hydration and structure forming process of Portland cement could be described more exactly by applying thc thermal model and the structure-forming model.
|
Model Analysis of Initial Hydration and Strueture Forming of Portland Cement |
| |
| DONG Rongzhen MA Baoguo WEI Jun XU Yonghe ZHU Jongbo TAN Hongbo. Model Analysis of Initial Hydration and Strueture Forming of Portland Cement[J]. Journal of Wuhan University of Technology. Materials Science Edition, 2007, 0(4) |
| |
| Authors: | DONG Rongzhen MA Baoguo WEI Jun XU Yonghe ZHU Jongbo TAN Hongbo |
| |
| Affiliation: | DONG Rongzhen~1 MA Baoguo~2 WEI Jun~1 XU Yonghe~2 ZHU Jongbo~2 TAN Hongbo~2 |
| |
| Abstract: | The auto efficiently hydration heat arrangement and the non-contacting electrical resistivity device were used to test the thermology effect and the resistivity variation of Portland cement hydration. The structure forming model of Portland cement initial hydration was established through the systematical experiments with different cements,the amount of mixing water and the chemical admixture.The experimental results show that,the structure forming model of cement could be divided into three stages,i e,solution-solution equilibrium period,structure forming period and structure stabilizing period.Along with the increase of mixing water,the time of inflexion appeared is in advance for thermal process of cement hydration and worsened for the structure forming process.Comparison with the control specimen,adding Na_2SO_4 makes the minimum critical point lower,the flattening period shorter and the growing slope after stage one steeper.So the hydration and structure forming process of Portland cement could be described more exactly by applying thc thermal model and the structure-forming model. |
| |
| Keywords: | non-contacting electrical resistivity device structure formation model cement hydration structure forming |
| 本文献已被 CNKI 等数据库收录！ |
