| 高纯度铝酸三钙的制备 |
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| 引用本文： | 马保国,夏永芳,谭洪波,肖君.高纯度铝酸三钙的制备[J].济南大学学报(自然科学版),2012(3):221-224. |
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| 作者姓名： | 马保国 夏永芳 谭洪波 肖君 |
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| 作者单位： | 武汉理工大学硅酸盐建筑材料国家重点实验室 |
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| 基金项目： | 国家自然科学基金(51178363);国家重点基础研究发展计划(973)(2009CB623201) |
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| 摘 要： | 以碳酸钙、氢氧化钙和氧化铝为原材料,选用不同煅烧温度、保温时间及煅烧次数,确定制备高纯度铝酸三钙(C3A)的方法。经X射线衍射(XRD)和扫描电镜(SEM)分析,结果表明:最佳制备方法为以氢氧化钙为钙质原料、氧化铝为铝质原料,煅烧温度为1 320℃,保温时间为3 h,经3次煅烧研磨得w(f-CaO)为0.45%的高纯度C3A;水化10 min的C3A具有较高的水化活性。
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| 关 键 词： | C3A 制备 合成条件 水化反应 |
A Preparation Method of High-Purity C3A |
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| MA Bao-guo,XIA Yong-fang,TAN Hong-bo,XIAO Jun.A Preparation Method of High-Purity C3A[J].Journal of Jinan University(Science & Technology),2012(3):221-224. |
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| Authors: | MA Bao-guo XIA Yong-fang TAN Hong-bo XIAO Jun |
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| Institution: | (State Key Laboratory of Silicate Materials for Architecture,Wuhan University of Technology,Wuhan 430070,China) |
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| Abstract: | Using calcium carbonate,calcium hydroxide and alumina as raw materials and choosing different sintering temperature,soaking time and burning times,we confirm the preparation method of high purity C3A.X-ray diffraction(XRD) and scanning electron microscope(SEM) analyses show that high purity C3A is synthesized with calcium hydroxide as calcium material,alumina as aluminum material and by sintering at 1 320 ℃,holding for 3 h,grinding and sintering for 3 times.And the f-CaO content in C3A is 0.45%.The C3A hydrated for 10 min has high hydration activity. |
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| Keywords: | C3A preparation synthesis condition hydration activity |
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