| 混凝土早期裂缝成因分析及控制措施 |
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| 引用本文： | 徐华兴,周双喜,徐春红.混凝土早期裂缝成因分析及控制措施[J].水运科技信息,2008(1):68-71. |
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| 作者姓名： | 徐华兴 周双喜 徐春红 |
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| 作者单位： | [1]上饶市交通局,上饶334000 [2]华东交通大学土木建筑学院,南昌330013 |
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| 摘 要： | 分析了混凝土早期裂缝形成的原因，并从材料和施工方面提出了减少或防止混凝土开裂的措施。研究结果表明，选择适宜的水泥．引入一定量的矿渣粉或粉煤灰取代水泥，掺入一定量的膨胀剂和减缩剂，施工中控制内外温差，浇水养护，可以减少或防止混凝土早期开裂。
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| 关 键 词： | 混凝土早期裂缝 控制措施 减缩剂 膨胀剂 |
| 收稿时间： | 2007-09-28 |
Reason Analysis and Preventive Measures of Early Cracks of Concrete |
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| Xu Huaxing , Zhou Shuangxi , Xu Chunhong.Reason Analysis and Preventive Measures of Early Cracks of Concrete[J].Transportation Science & Technology,2008(1):68-71. |
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| Authors: | Xu Huaxing Zhou Shuangxi Xu Chunhong |
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| Abstract: | In this paper, the reasons of early cracks of concrete are analyzed and related preventive measures are presented from the aspects of materials and construction of concrete. The results indicated that the early cracks of concrete could be reduced when cement was partially replaced by fly ash or slag powder, adding some shrinkage reducing admixture or expansive admixture in cement, controlling the temperature difference inside and outside of concrete and curing in water. |
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| Keywords: | early cracks of concrete preventive measures shrinkage reducing admixture expansive admixture |
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