| 首钢矿粉混凝土早期抗裂性试验研究 |
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| 引用本文： | 张树青. 首钢矿粉混凝土早期抗裂性试验研究[J]. 混凝土, 2005, 0(2): 43-45 |
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| 作者姓名： | 张树青 |
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| 作者单位： | 同济大学材料学院材料工程研究所,上海,200433 |
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| 摘 要： | 本文研究了掺加首铜矿粉对混凝土干燥收缩和早期抗裂性的影响。试验结果表明：(1)在同标号条件下。掺加矿粉增大了混凝土干燥收缩值，标号越高，增加幅度越大；(2)掺加比面积430m^2／kg的矿粉可以改善混凝土早期抗裂性：而掺加比面积520m^2／kg的矿粉混凝土抗裂性变差。
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| 关 键 词： | 矿粉 混凝土 干燥收缩 抗裂性 |
| 文章编号： | 1002-3550(2005)02-0043-03 |
The influence of the ground slag by Beijing-steel Plant to the properties of resisting cracking of concrete at early age |
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| ZHANG Shu-qing. The influence of the ground slag by Beijing-steel Plant to the properties of resisting cracking of concrete at early age[J]. Concrete, 2005, 0(2): 43-45 |
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| Authors: | ZHANG Shu-qing |
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| Abstract: | The influence of ground slag by Beijing-steel Plant to the dry shringkage and the resistance to cracking of concrete at early age were studied.The results show that:(1) Under the condition of the same strength grade of concrete,the more the addition of ground slag,the bigger the dry shrinkage of concrete;the more the strength grade of concrete,the more obvious the effect;(2)The resistance to cracking of concretes with the area of 430m~2/kg ground slag at early age are increased,but when the area of ground slag is above 520m~2/kg,the resistance to cracking of concrete at early age is weaker. |
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| Keywords: | ground slag concrete dry shrinkage resistance to cracking |
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