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| 氧化镁在不同养护条件下水化产物的形貌分析 | |
| 引用本文： | 高培伟,吴胜兴,林萍华,吴中如,唐明述.氧化镁在不同养护条件下水化产物的形貌分析[J].无机化学学报,2007,23(6):1063-1068. |
| 作者姓名： | 高培伟 吴胜兴 林萍华 吴中如 唐明述 |
| 作者单位： | 1. 南京航空航天大学土木工程系,南京,210016 2. 河海大学土木工程学院,南京,210098 3. 南京工业大学材料学院,南京,210009 |
| 基金项目： | 国家自然科学基金;国家重点基础研究发展计划(973计划) |
| 摘 要： | The morphologies of brucite formed from MgO hydration under different curing conditions were studied. The results showed that there were relations between the morphologies of brucite and its forming conditions. The size of brucite crystals increased with the curing time, and they were fiber-shaped at lower curing temperature and stick-shaped at higher temperature. When MgO was cured in paste with 10 percent cement, the crystal of brucite was fiber-shaped, while cured in paste with 95 percent cement, the crystal was hexaflaggy-shaped, which aggregated and produced some micro-cracks in paste when the curing temperature was increased. At 180 ℃ autoclaving temperature of MgO, the brucite was regular hexaflaggy-shaped crystal; for 216 ℃, it was less irregular. When the paste mixed with 50 percent fly ash, the crystal of brucite was needle-shaped and distributed more evenly, so decreased the deformation and crack of the concrete. |
| 关 键 词： | 水镁石 形貌 微观结构 压蒸 养护龄期和温度 |
| 文章编号： | 1001-4861（2007）06-1063-06 |
| 修稿时间： | 2006-12-282007-04-18 |
Morphology of MgO Hydration Products under Different Curing Conditions |
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| GAO Pei-Wei,WU Sheng-Xing,LIN Ping-Hu,WU Zhong-Ru and TANG Ming-Shu.Morphology of MgO Hydration Products under Different Curing Conditions[J].Chinese Journal of Inorganic Chemistry,2007,23(6):1063-1068. | |
| Authors: | GAO Pei-Wei WU Sheng-Xing LIN Ping-Hu WU Zhong-Ru and TANG Ming-Shu |
| Institution: | Department of Civil Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016,College of Civil Engineering, Hohai University, Nanjing 210098,College of Civil Engineering, Hohai University, Nanjing 210098,College of Civil Engineering, Hohai University, Nanjing 210098 and College of Materials Engineering, Nanjing University of Technology, Nanjing 210009 |
| Abstract: | |
| Keywords: | brucite morphology micro-structure autoclave curing time and temperature |
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