| 粉体的复合效应对混凝土流动性与流变性能的影响 |
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| 引用本文： | 王泽云,石云兴.粉体的复合效应对混凝土流动性与流变性能的影响[J].四川建筑科学研究,2004,30(3):105-107. |
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| 作者姓名： | 王泽云 石云兴 |
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| 作者单位： | 1. 西华大学建筑与土木工程学院,四川,成都,610039
2. 北京中建建筑科学技术研究院,北京,100076 |
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| 摘 要： | 研究了硅灰(SF)与磷渣(PS)和石灰石(Ls)微细粉的复合效应对高性能混凝土(HPC)流动性和流变性能的影响。SF与PS的复合可减小基材砂浆的塑性粘度，并明显增加混凝土的流动性。尽管SF在一定掺量范围内与LS复合对混凝土塑性粘度影响不大，但与LS单独使用相比，却降低了混凝土的流动性。本研究结果表明，利用粉体的复合效应能有效地优化混凝土的流动性和流变性能。
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| 关 键 词： | 高性能混凝土 复合效应 塑性粘度 砂浆 硅灰 磷渣 流动性 流变性能 粉体 基材 |
| 文章编号： | 1008-1933(2004)03-0105-03 |
| 修稿时间： | 2004年3月19日 |
Compounding effect of fine mineral powders on fluidity and rheological property of concrete |
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| WANG Ze-yun.Compounding effect of fine mineral powders on fluidity and rheological property of concrete[J].Building Science Research of Sichuan,2004,30(3):105-107. |
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| Authors: | WANG Ze-yun |
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| Affiliation: | WANG Ze-yun~ |
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| Abstract: | In this paper, a compounding effect of silica fume (SF) with fine powders from phosphorus slag (PS) or limestone (LS) is investigated. It was found that such a compounding can achieve various fluidity & rheological property of concrete. The compound of PS with SF lowers plastic viscosity of matrix mortar, but enhance fluidity of concrete obviously. The compounding of LS with SF decreases fluidity of concrete, although the viscosity remains broadly unchanged compared with the concrete incorporating LS only. The experimental results showed that the fluidity & rheological property of concrete can be improved greatly by using the compounding effect of fine mineral powders. |
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| Keywords: | fine powder compounding effect fluidity plastic viscosity |
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