| 减缩剂对高性能砼体积稳定性影响试验研究 |
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| 引用本文： | 王迎飞,曾志文,黄雁飞.减缩剂对高性能砼体积稳定性影响试验研究[J].水运工程,2006(1):20-23,39. |
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| 作者姓名： | 王迎飞 曾志文 黄雁飞 |
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| 作者单位： | 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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| 基金项目： | 中国港湾建设集团总公司资助项目 |
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| 摘 要： | 设计了干燥收缩、自收缩、平板约束、抗氯离子渗透性以及极限拉应变等5种试验方法来检验减缩剂对高性能混凝土收缩开裂性能的影响。研究结果表明：减缩剂能够改善高性能混凝土的工作性，对忍凝土的力学性能无副作用，能够有效地提高混凝土的抗裂性能。
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| 关 键 词： | 高性能混凝土 收缩开裂 减缩剂 干燥收缩 自收缩 约束试验 氯离子渗透 极限拉应变 |
| 文章编号： | 1002-4972（2006）01-0020-04 |
| 收稿时间： | 2005-08-11 |
| 修稿时间： | 2005-08-11 |
Experimental Study on Volume Stability of HPC by Shrinkage-Reducing Agent |
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| WANG Ying-fei,ZENG Zhi-wen,HUANG Yan-fei.Experimental Study on Volume Stability of HPC by Shrinkage-Reducing Agent[J].Port & Waterway Engineering,2006(1):20-23,39. |
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| Authors: | WANG Ying-fei ZENG Zhi-wen HUANG Yan-fei |
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| Institution: | CHEC Key Lab for Architectural Materials, Guangzhou Sihang Engineering Research Institute, Guangzhou 510230, China |
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| Abstract: | This paper analyzes the influence of SRA on the shrinkage-cracking property of HPC by designing five check-up experiments including desiccation-shrinkage, autogeous shrinkage, fiat-restraint, anti-chloride ion penetration and ultimate tensile strain. The results prove that SRA can improve the workability of HPC and promote effectively anti-cracking performance of concrete, without any negative effect on the mechanical property of concrete. |
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| Keywords: | HPC shrinkage-cracking SRA Desiccation-shrinkage autogenous-shrinkage fiat-restraint chloride ion penetration ultimate tensile strain |
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