| 溪洛渡大坝混凝土特性及防裂措施 |
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| 引用本文： | 李文伟,郑丹.溪洛渡大坝混凝土特性及防裂措施[J].水利水电技术,2010,41(2). |
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| 作者姓名： | 李文伟 郑丹 |
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| 作者单位： | 中国三峡集团公司,科技环保部,湖北,宜昌,443002 |
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| 摘 要： | 溪洛渡拱坝混凝土采用玄武岩粗骨料、灰岩细骨料,针对骨料特性,通过优化配合比、提高水泥要求以及外掺MgO等工程措施,有效地改善了混凝土的极限拉伸变形和自身体积变形,提高了混凝土的抗裂特性,保证了溪洛渡大坝混凝土的质量。
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| 关 键 词： | 溪洛渡拱坝 混凝土 极限拉伸变形 自生体积变形 防裂措施 |
Concrete properties and crack control measures for construction of Xiluodu Arch Dam |
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| LI Wen-wei,ZHENG Dan.Concrete properties and crack control measures for construction of Xiluodu Arch Dam[J].Water Resources and Hydropower Engineering,2010,41(2). |
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| Authors: | LI Wen-wei ZHENG Dan |
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| Affiliation: | LI Wen-wei,ZHENG Dan(Scientific Environment Protection Deprtment of China Three Gorges Corporation,Yichang 443002,Hubei,China) |
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| Abstract: | As coarse aggregate of basalt and fine aggregate of limestone are used in the concrete for the construction of Xiluodu Arch Dam,the engineering measures of enhancing the cement strength and admixing MgO are adopted through the optimization of the mixing ratio for the aggregate properties;by which the utmost tensile deformation and the autogenous valume deformation of the concrete are effectively improved,and then not only the crack resistance of the concrete is enhanced,but the quality of the concrete of th... |
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| Keywords: | Xiluodu Arch Dam concrete utmost tensile deformation autogenous volume deformation crack control measure |
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