| 高性能混凝土减水剂NDJ的性能研究 |
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| 引用本文： | 许仁富,胡柏星,何其慧,易欣,沈健. 高性能混凝土减水剂NDJ的性能研究[J]. 精细化工, 2004, 21(11): 866-868,880 |
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| 作者姓名： | 许仁富 胡柏星 何其慧 易欣 沈健 |
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| 作者单位： | 南京大学,化学化工学院,江苏,南京,210093;南京大学,化学化工学院,江苏,南京,210093;南京大学,表面和界面化学工程技术研究中心,江苏,南京,210093 |
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| 摘 要： | 对减水剂NDJ性能进行了实验研究,结果证明,NDJ不仅具有20%以上的高减水率,而且具有优良的增强和保坍性能,用其配制的大流动性混凝土的坍落度在1h内几乎无损失,2h内坍落度损失率小于10%,掺加NDJ的大流动性混凝土的28d抗压强度增长率在40%以上,NDJ适于配制预拌(商品)混凝土和高强、高性能混凝土。
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| 关 键 词： | 混凝土 减水剂 坍落度 高保坍 |
| 文章编号： | 1003-5214(2004)011-0866-04 |
Study of the Performance of High-rank Water-reducing Agent NDJ |
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| XU Ren-fu,HU Bai-xing,HE Qi-hui,YI Xin,SHEN Jian. Study of the Performance of High-rank Water-reducing Agent NDJ[J]. Fine Chemicals, 2004, 21(11): 866-868,880 |
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| Authors: | XU Ren-fu HU Bai-xing HE Qi-hui YI Xin SHEN Jian |
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| Affiliation: | XU Ren-fu~1,HU Bai-xing~1,HE Qi-hui~1,YI Xin~1,SHEN Jian~ |
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| Abstract: | Properties of a kind of water reducing agent named NDJ was investigated.It was proved that NDJ has not only high water-reducing rate over 20%,but also excellent properties of increasing strength and resisting slump.High fluidity concrete produced by NDJ hardly slumps during one hour,and the slump loss rate is less than 10% during two hours.The 28 days increment of compressive strength of high fluidity concrete made by NDJ is more than 40%.NDJ is fit for commercial concrete,high strength concrete and high performance concrete. |
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| Keywords: | concrete water-reducing agent slump high slump loss resistant |
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