| 四方台大桥主墩承台混凝土冬季施工配比设计 |
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| 引用本文： | 吴士祥,梁春明. 四方台大桥主墩承台混凝土冬季施工配比设计[J]. 森林工程, 2005, 21(4): 45-46,49 |
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| 作者姓名： | 吴士祥 梁春明 |
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| 作者单位： | 1. 东北林业大学,哈尔滨,150040
2. 黑龙江省龙华工程试验检测公司,哈尔滨,150018 |
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| 摘 要： | 本文重点介绍了四方台大桥主墩承台大体积混凝土冬季施工配比的设计。试验表明：配制大体积混凝土，水泥应选用低水化热水泥，尽量采用级配良好的骨料，掺入适量的缓凝剂，可以降低大体积混凝土早期的水化放热速率，还可以降低水泥水化过程中的放热峰值，从而使混凝土内外温差减小。
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| 关 键 词： | 四方台大桥 承台 冬季施工 配比设计 |
| 文章编号： | 1001-005X(2005)04-0045-02 |
Concrete Proportion Design for Main Pier Bearing Platform of Sifangtai Bridge in Winter Construction |
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| Wu Shixiang,Liang Chunming. Concrete Proportion Design for Main Pier Bearing Platform of Sifangtai Bridge in Winter Construction[J]. Forest Engineering, 2005, 21(4): 45-46,49 |
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| Authors: | Wu Shixiang Liang Chunming |
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| Abstract: | The massive concrete proportion design for main pier bearing platform of Sifangtai Bridge in winter construction was mainly introduced. The results showed that the preparation of massive concrete should select low hydration heat cement, well-graded aggregate, and add retarder with proper quantity which could reduce the rate of incipient hydration heat of massive concrete, and cut the peak value of heat to decrease internal and external difference in temperature. |
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| Keywords: | Sifangtai Bridge bearing platform winter construction proportion design |
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