| 高性能混凝土早期裂缝的防治措施 |
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| 引用本文： | 郝丽峰,屈春秀.高性能混凝土早期裂缝的防治措施[J].建材世界,2014(3):34-36. |
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| 作者姓名： | 郝丽峰 屈春秀 |
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| 作者单位： | 重庆交通大学土木建筑学院,重庆400060 |
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| 摘 要： | 通过对高性能混凝土产生早期裂缝的原因进行分析得出，温度变形和自收缩变形是导致混凝土开裂的主要原因，而其产生的干缩可以忽略不计。从而提出降低温度收缩和自收缩来控制混凝土出现早期开裂，同时还介绍了掺加高效减水剂降低早期水化程度、掺膨胀剂补偿收缩和掺加纤维阻裂增韧。
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| 关 键 词： | 高性能混凝土 早期裂缝 温度收缩 自收缩 防治措施 |
Early Crack Prevention Measures on High Performance Concrete |
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| HAOLi-feng,QUChun-xiu.Early Crack Prevention Measures on High Performance Concrete[J].The World of Building Materials,2014(3):34-36. |
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| Authors: | HAOLi-feng QUChun-xiu |
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| Affiliation: | (School of Civil Engineering,Chongqing Jiaotong University,Chongqing 400060,China) |
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| Abstract: | This paper analyzed the causes of early cracks on high performance concrete.Temperature deformation and autogenous shrinkage were the main reasons to cause the crack of concrete,and the shrinkage can be ignored. Thus lower temperature shrinkage and self shrinkage controled concrete early cracking.It also introduced the adding superplasticizer to reduce hydration degree,mixing expansive agent to compensate shrinkage and adding fiber to resist crack and toughening. |
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| Keywords: | high performance concrete early cracks temperature shrinkage self shrinkage prevention measures |
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