| 石灰粉煤灰改性磷石膏做水泥调凝剂的研究 |
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| 引用本文： | 周丽娜,沈卫国,周明凯,李进辉.石灰粉煤灰改性磷石膏做水泥调凝剂的研究[J].新世纪水泥导报,2007,13(1):17-19. |
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| 作者姓名： | 周丽娜 沈卫国 周明凯 李进辉 |
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| 作者单位： | 武汉理工大学材料科学与工程学院,430070 |
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| 基金项目： | 教育部科学技术研究重点项目 |
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| 摘 要： | 采用石灰、粉煤灰复合改性磷石膏的方法制备出水泥调凝剂。结果表明：该方法可有效固结磷石膏中有害杂质可溶磷、可溶氟；对于可溶磷、氟含量较高的磷石膏，必须经过改性后方可使用，改性后的磷石膏可取代天然石膏，在保证水泥性能的前提下，可节省熟料，降低成本。
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| 关 键 词： | 磷石膏 改性 调凝剂 |
| 文章编号： | 1008-0473（2007）01-0017-03 |
| 收稿时间： | 2006-10-08 |
| 修稿时间： | 2006-10-08 |
Study on using phosphor-gypsum property-modified by lime and flyash as cement retarding agent |
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| Authors: | Zhou Lina Shen Weiguo and Zhou Mingkai Author's address: Wuhan University of Technology College of Material Science and Engineering Key-lab for silicate materials |
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| Abstract: | Cement retarding agents can be produced by means of adopting lime and flyash to modify properties of phosphor-gypsum. Result shows that the detrimental impurities of soluble phosphor and soluble fluorine in phosphor-gypsum can be solidified with this method. Phosphor-gypsum with high content of soluble phosphor and fluorine must be used after property modification. Property modified phosphor-gypsum can be used instead of natural gypsum, which can save clinker and cost under preconditions of cement property remaining guaranteed. |
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| Keywords: | Phosphor-gypsum Property modification Retarding agent |
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