| 变温条件下粉煤灰对混凝土抗压强度的影响 |
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| 引用本文： | 阎培渝,王强.变温条件下粉煤灰对混凝土抗压强度的影响[J].混凝土,2008(3):1-3. |
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| 作者姓名： | 阎培渝 王强 |
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| 作者单位： | 清华大学,土木工程系,结构工程与振动教育部重点实验室,北京,100084 |
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| 摘 要： | 以混凝土绝热温升为温度参考依据,模拟混凝土早龄期的变温过程,研究了在变温条件下掺加粉煤灰对混凝土抗压强度的影响.强度等级为C30级时.粉煤灰混凝土3 d后的抗压强度高于纯水泥混凝土;强度等级为C80级时,粉煤灰混凝土4 d后的抗压强度高于纯水泥混凝土.通过工程实例研究了不同养护条件对大掺量粉煤灰混凝土强度发展的影响,发现温度匹配养护下7 d的抗压强度远高于在标准养护和同条件养护下的抗压强度.
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| 关 键 词： | 绝热温升 温度匹配养护 粉煤灰 抗压强度 |
| 文章编号： | 1002-3550(2008)03-0001-03 |
| 修稿时间： | 2007年9月18日 |
Influence of fly ash on the compressive strength of concrete under temperature match curing conditions |
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| YAN Pei-yu,WANG Qiang.Influence of fly ash on the compressive strength of concrete under temperature match curing conditions[J].Concrete,2008(3):1-3. |
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| Authors: | YAN Pei-yu WANG Qiang |
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| Affiliation: | YAN Pei-yu,WANG Qiang(Key Laboratory of Structure Engineering , Vibration,Department of Civil Engineering,Tsinghua University,Beijing 100084,China) |
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| Abstract: | The influence of the addition of fly ash on the compressive strength of concrete was studied under the temperature match curing conditions.The process of temperature changing in concrete during early age was simulated based on the adiabatic temperature rise curve of concrete.When the strength grade of concrete is C30,the compressive strength of fly ash concrete cured for 3 days is higher than that of straight cement concrete.When the strength grade of concrete is C80,the compressive strength of fly ash conc... |
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| Keywords: | adiabatic temperature rise temperature match curing fly ash compressive strength |
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