| 粉煤灰对高性能砼收缩开裂性能影响试验研究 |
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| 引用本文： | 黄焕谦,王迎飞,王胜年,黄雁飞.粉煤灰对高性能砼收缩开裂性能影响试验研究[J].水运工程,2007(1):25-29. |
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| 作者姓名： | 黄焕谦 王迎飞 王胜年 黄雁飞 |
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| 作者单位： | 1. 中交集团第四航务工程局有限公司,广东,广州,510230
2. 广州四航工程技术研究院中港集团建筑材料重点实验室,广东,广州,510230 |
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| 摘 要： | 设计收缩、小圆环约束开裂、水化热、极限拉伸率以及抗氯离子渗透性等5种试验方法来考核粉煤灰对高性能混凝土收缩开裂性能的影响。研究结果表明:粉煤灰能够改善高性能混凝土的工作性、降低早期弹性模量和水化热、7 d后强度能够快速增长并逼近基准混凝土,能够有效地提高混凝土的抗裂性能。
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| 关 键 词： | 粉煤灰 收缩开裂 水化热 小圆环法 |
| 文章编号： | 1002-4972（2007）01-0025-05 |
| 收稿时间： | 2006-08-14 |
| 修稿时间： | 2006年8月14日 |
Experimental Study on Shrinkage-cracking Property of HPC by Flyash |
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| HUANG Huan-qian,WANG Ying-fei,WANG Sheng-nian,HUANG Yan-fei.Experimental Study on Shrinkage-cracking Property of HPC by Flyash[J].Port & Waterway Engineering,2007(1):25-29. |
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| Authors: | HUANG Huan-qian WANG Ying-fei WANG Sheng-nian HUANG Yan-fei |
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| Institution: | 1. China Communications Guangzhou Port Construction Co., Ltd., Guangzhou 510230, China; 2. Key Lab of Construction Materials of CHEC, Guangzhou Sihang Institute of Engineering Technology, Guangzhou 510230, China |
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| Abstract: | This paper is to analyze the effect on shrinkage-cracking property of HPC by flyash by designing five check-up experiments such as desiccation-shrinkage,small steel rings restraint,hydration heat,ultimate tensile strain,and anti-chloride ion penetration,etc.The results reveal that flyash can improve the workability of HPC and decrease elastic modulus and hydration heat at early age,and promote effectively anti-cracking performance with its compressive strength approaching that of control sample after 7 days. |
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| Keywords: | flyash shrinkage-cracking hydration heat small steel rings restraint |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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