| 高掺量粉煤灰固结材料的矿物组成及微观结构研究 |
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| 引用本文： | 刘文永,付海明.高掺量粉煤灰固结材料的矿物组成及微观结构研究[J].岩石矿物学杂志,2003,22(4):449-452. |
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| 作者姓名： | 刘文永 付海明 |
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| 作者单位： | 1. 中国矿业大学北京校区,北京,100083
2. 北京真然绿色建材科技有限公司,北京,100083 |
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| 摘 要： | 采用化学成分、X衍射和电子显微镜分析等方法研究了高掺量粉煤灰固结材料的矿物组成及微观结构。结果表明 ,其矿物组成主要是 3Al2 O3 ·2SiO2 和硅铝酸盐的胶凝物相 ,具有较大孔径的多孔结构特征 ,与水泥混凝土的矿物组成和微观结构有较大不同 ;粉煤灰的掺量、养护龄期对水化产物的生成量有直接影响 ;固结剂掺量大于 2 0 %时 ,粉煤灰和固结剂全部反应形成多孔状的胶凝体水化产物
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| 关 键 词： | 粉煤灰 固结材料 矿物组成 微观结构 掺量 养护龄期 固结剂 |
| 文章编号： | 1000-6524(2003)04-0449-04 |
| 修稿时间： | 2003年7月31日 |
Mineral composition and microstructure of cementitious materials with high content of fly ash |
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| LIU Wen_yong,and FU Hai_ming.Mineral composition and microstructure of cementitious materials with high content of fly ash[J].Acta Petrologica Et Mineralogica,2003,22(4):449-452. |
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| Authors: | LIU Wen_yong and FU Hai_ming |
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| Institution: | LIU Wen_yong 1 and FU Hai_ming 2 |
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| Abstract: | Mineral composition and microstructure of fly ash-high cementitious materials were studied by such means as chemical analysis, XRD and SEM. The results show that the mineral composition is mainly 3Al2O3·2SiO2and silica-alumina gelled mineral. Fly
ash_high cementitious materials are characterized by the structure of numerous big holes. The mineral composition and microstructure of these materials are quite different from those of cement concrete. The content of fly ash and the curing time affect directly the quantity of hydrated product. When the content is above 20%, the materials entirely react with the consolidating agent and form porous solid bodies. |
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| Keywords: | fly ash cementitious materials mineral composition microstructure high content |
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