| 支井河大桥C20大体积混凝土冬季温控施工研究 |
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| 引用本文： | 陈友治,孙涛,马富奎,袁长春,李琪龙,曲志龙.支井河大桥C20大体积混凝土冬季温控施工研究[J].武汉理工大学学报,2007,29(3):111-113. |
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| 作者姓名： | 陈友治 孙涛 马富奎 袁长春 李琪龙 曲志龙 |
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| 作者单位： | 1. 武汉理工大学材料科学与工程学院,武汉,430070
2. 中铁十三局第一公司,大连,116033 |
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| 摘 要： | 通过分析大体积混凝土温度裂缝产生机理，提出了大体积混凝土施工温度控制的措施，并针对支井河大桥C20大体积混凝土冬季施工的特点，通过选择合适的原材料、优化混凝土配合比设计，对混凝土在无保温措施和采取外部保温措施2种情况下的内外温差进行比较分析，最终确定选择外部保温的温控措施，并成功地进行了C20大体积混凝土的浇筑。
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| 关 键 词： | 大体积混凝土 外保法 温度裂缝 温度控制 |
| 文章编号： | 1671-4431(2007)03-0111-03 |
| 修稿时间： | 2006年11月20 |
Research on the Temperature Control Measure in the Winter Construction of C20 Large Volume Concrete of Zhijing River Bridge |
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| CHEN You-zhi,SUN Tao,MA Fu-kui,YUAN Chang-chun,LI Qi-long,QU Zhi-long.Research on the Temperature Control Measure in the Winter Construction of C20 Large Volume Concrete of Zhijing River Bridge[J].Journal of Wuhan University of Technology,2007,29(3):111-113. |
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| Authors: | CHEN You-zhi SUN Tao MA Fu-kui YUAN Chang-chun LI Qi-long QU Zhi-long |
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| Abstract: | This paper analyzed the mechanism about temperature cracks of large volume concrete,and put forward the content about temperature control of Large Volume Concrete Construction.Based on the status of C20 large volume concrete of Zhijing River Bridge in the winter construction,it is concluded that large volume concrete cracks could be controlled.By the select of raw materials,the design of mixture ration and analyzing no surface temperature preservation and surface temperature preservation on the concrete,the surface temperature preservation was fixed.At last the C20 large volume concrete was successfully applied. |
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| Keywords: | large volume concrete surface temperature preservation temperature cracks temperature control |
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