| 石粉对机制砂混凝土拌合物泌水率的影响 |
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| 引用本文： | 贺图升,周明凯,李北星,查进,李炫华.石粉对机制砂混凝土拌合物泌水率的影响[J].混凝土,2007(2):58-60. |
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| 作者姓名： | 贺图升 周明凯 李北星 查进 李炫华 |
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| 作者单位： | 武汉理工大学,材料科学与工程学院,湖北,武汉,430070 |
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| 摘 要： | 测试了不同石粉含量对机制砂混凝土拌合物泌水率的影响.结果表明:机制砂与河砂泌水率随静置时间成对数关系变化;随石粉含量增加(水粉比降低),机制砂混凝土泌水率降低,泌水潜伏时间延长,泌水中沉淀物减少.
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| 关 键 词： | 石粉 机制砂 混凝土 泌水 石粉含量 机制砂混凝土 拌合物 泌水率 影响 fresh concrete rate bleeding 沉淀物 延长 静置时间 比降 含量增加 关系变化 对数 河砂 结果 测试 |
| 文章编号： | 1002-3550-（2007）02-0058-03 |
| 修稿时间： | 2006-12-10 |
Influence of micro-fines on bleeding rate of fresh concrete of manufactured-sand |
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| HE Tu-sheng,ZHOU Ming-kai,LI Bei-xing,CHA Jin,LI Xuan-hua.Influence of micro-fines on bleeding rate of fresh concrete of manufactured-sand[J].Concrete,2007(2):58-60. |
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| Authors: | HE Tu-sheng ZHOU Ming-kai LI Bei-xing CHA Jin LI Xuan-hua |
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| Affiliation: | School of material science and engineering, Wuhan University of Technology, Wuhan 430070, China |
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| Abstract: | It was investigated that the effects of the different content micro-fines on the bleeding rate in manufactured-sand fresh concrete.The result shows that the bleeding rate of manufactured-sand and river-sand changes in logarithm relation with stewing time;With the increasing of micro-fines content(water micro-fines ratio reduces),The bleeding rate of manufactured-sand concrete reduces,the bleeding latent time expands,and the precipitate reduces in bleeding. |
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| Keywords: | micro-fines manufactured-sand concrete bleeding |
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