| 掺MgO混凝土自身变形的温度效应试验及其应用 |
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| 引用本文： | 李承木. 掺MgO混凝土自身变形的温度效应试验及其应用[J]. 水利水电科技进展, 1999, 19(5): 33-37 |
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| 作者姓名： | 李承木 |
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| 作者单位： | 国家电力公司成都勘测设计研究院科学研究所,成都,610071 |
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| 摘 要： | 论述不同试验温度条件下ＭｇＯ 混凝土的自生体积变形，给出了温度与自生体积变形的关系式，并介绍了温度突变时对新老混凝土体积变形的影响．试验研究表明，ＭｇＯ 混凝土自生体积变形的膨胀变形速率和膨胀量随温度的增高而增大；在气温骤降情况下，外掺ＭｇＯ 混凝土的自生体积膨胀变形是稳定的、不可逆的，也不会产生收缩现象．
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| 关 键 词： | MgO混凝土 试验温度 膨胀变形 自生体积变形 |
| 修稿时间： | 2004-11-11 |
Temperature Effect Test of Self Deformation of MgO Concrete and its Application |
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| Li Chengmu. Temperature Effect Test of Self Deformation of MgO Concrete and its Application[J]. Advances in Science and Technology of Water Resources, 1999, 19(5): 33-37 |
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| Authors: | Li Chengmu |
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| Abstract: | The autogenous volume deformation of the adulterate MgO concrete due to the different test temperature is discussed.The relation between the test temperatures and the autogenous volume defovrmation is given,and the effect of the autogenous volume deformation of the new and old concretes due to the temperature revulsion is introduced.According to the test results,when the temperature rises,the deformation speed of expansion and the expansional amoumt of the MgO concrete autogerous volume deformation increase;when the temperature drops suddenly,the autogerous volume expanding deformation of the concrete containing MgO microexpansionalagent is unchanged,and the phenomenon of shrinkage will not take place. |
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| Keywords: | MgO concrete test temperature expansion deformation autogenous volume deformation |
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