| 低热硅酸盐水泥在闸墩混凝土中的应用研究 |
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| 引用本文： | 彭琨,黄达海. 低热硅酸盐水泥在闸墩混凝土中的应用研究[J]. 云南水力发电, 2010, 26(6): 51-55,116. DOI: 10.3969/j.issn.1006-3951.2010.06.016 |
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| 作者姓名： | 彭琨 黄达海 |
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| 作者单位： | 北京航空航天大学交通科学与工程学院; |
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| 摘 要： | 分析在深溪沟水电站工程中使用的低热、中热硅酸盐水泥的热学、力学性质,用仿真分析软件FZFX3D根据现场施工的实际情况计算两种水泥在闸墩中使用后的温度场和应力场。分析结果表明低热水泥的应用,能有效降低混凝土内部温度峰值,减少温度应力,防止温度裂缝。闸墩在冬季施工中使用低热水泥能明显提高抗裂安全系数,可减少温控措施。在夏季施工中,低热水泥提高抗裂安全系数的效果不如冬季,但由于夏季温度应力大,低热水泥的使用更加必要。
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| 关 键 词： | 低热硅酸盐水泥 中热硅酸盐水泥 闸墩 温度应力 抗裂 |
The Application Study of Low- heat Portland Cement in Gate Pier Concrete |
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| PENG Kun,HUANG Da-hai. The Application Study of Low- heat Portland Cement in Gate Pier Concrete[J]. Yunnan Water Power, 2010, 26(6): 51-55,116. DOI: 10.3969/j.issn.1006-3951.2010.06.016 |
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| Authors: | PENG Kun HUANG Da-hai |
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| Affiliation: | PENG Kun,HUANG Da-hai(College of Communications Science and Engineering,Beihang University(Beijing University ofAeronautics and Astronautics),Beijing 100191,China) |
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| Abstract: | The paper has calculated both temperature field and stress field of two kinds of cement used in gate piers according to the site actual conditions of construction by analyzing the thermal and mechanical properties of the low and moderate heat Portland cement used in the Shenxigou hydropower project using simulation analysis software FZFX3D.The analysis results reveal that the application of low-heat cement can effectively reduce the internal temperature peak value and temperature stress of concrete and prev... |
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| Keywords: | low-heat Portland cement moderate heat Portland cement gate pier temperature stress cracking resistance |
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