全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

氯氧镁水泥水化历程的影响因素及水化动力学

Full-Text   Cite this paper   Add to My Lib

Abstract:

为了深入研究氯氧镁水泥的水化机理,进而对其性能进行预测和改进,采用美国TAMAir热导式等温量热仪研究了氯氧镁水泥的水化动力学。测定了不同条件下氯氧镁水泥体系的水化放热过程,根据水化放热曲线,研究了该体系水化各阶段的动力学过程,探讨了实验因素对该体系水化过程的影响,并通过实验数据拟合得到了氯氧镁水泥水化过程的动力学方程。结果表明氯氧镁水泥水化过程的不同阶段受不同作用机理控制,加速期是受成核控制的自动催化反应时期,衰减期受扩散作用控制,而减速期受自动催化反应和扩散作用双重控制。同时,原料MgO的活性、反应温度及矿物外加剂的种类和数量都不同程度地影响了该体系的水化过程。

References

[1]  ? MATKOVIC B, Young J F. Microstructure of magnesium oxychloride cements [J]. Nat Phy Sci, 1973, 246(153): 79–80.
[2]  ? BILINSKI H, MATROVIC B, MAZURANIC C, et al. The formation of magnesium oxychloride phases in the systems MgO–MgCl2–H2O and NaOH–MgCl2–H2O [J]. J Am Ceram Soc,1984, 67(4): 266–269.
[3]  ? VED E I, ZHAROV E F, PHONG H V. Mechanism of magnesium oxychloride formation during the hardening of magnesium oxychloride cement [J]. Zh Prikl Khim, 1976, 49(10): 2154–2158.
[4]  ? 余红发. 氯氧镁水泥及其应用[M]. 北京: 中国建材工业出版社, 1993: 1–566.
[5]  YU Hongfa. Magnesium Oxychloride Cement and its Application (in Chinese). Beijing: China Building Materials Industry Press, 1993: 219–220.
[6]  ? DENG D H, ZHANG C M. The formation mechanism of the hydrate phases in magnesium oxychloride cement [J]. Cem Concr Res, 1999, 29(9): 1365–1371.
[7]  ? 崔崇, 马保国, 崔可浩, 等. 氯氧镁水泥水化机理与水化动力学研究[J]. 武汉工业大学学报, 16(2): 37–41.
[8]  CUI Chong, MA Bogou, CUI Kehou, et al. J Wuhan Univ Technol (in Chinese), 16(2): 37–41.
[9]  ? 张振禹, 戴长禄, 张铨昌, 等. 相5和相3的形成机理研究[J]. 中国科学: B辑, 1991(1): 82–89.
[10]  ZHANG Zhenyu, DAI Changlu, ZHANG Quanchang, et al. Chin Sci: Series B (in Chinese), 1991(1): 82–89.
[11]  ? LIPUNOV I N, KOVEL M S, TEPLOUKHOV A S, et al. Kinetics and thermodynamics thermodynamics of hardening in systems MgO–H2O and MgO–MgCl2–H2O [J]. Russ J App Chem, 2004, 77(4): 543–548.
[12]  ? 赵学庄. 化学反应动力学原理[M]. 北京: 高等教育出版社, 1984, 1–2.
[13]  ZHAO Xuezhuang. Principle of Chemical Reaction Dynamics (in Chinese). Beijing: High Education Press, 1984: 1–2.
[14]  ? 阎培渝, 郑峰. 水泥基材料的水化动力学模型[J]. 硅酸盐学报, 2006(5): 555–559.
[15]  YAN Peiyu, ZHENG Feng. J Chin Ceram Soc, 2006(5): 555–559.
[16]  ? KONDO R, UEDA S. Kinetics of hydration of cement // 5th International Conference on the Chemistry of Cement [C]. Tokyo, Sess II-4, 1968: 203–208.
[17]  ? KNUDSEN T. On particle size distribution in cement hydration // Proceedings of 7th International Congress on the Chemistry of Cement [C]. Vol I, Paris: 1980: p170.
[18]  ? 吴学权. 矿渣水泥水化动力学的研究[J]. 硅酸盐学报, 1988, 16(5): 423–428.
[19]  ? SORREL S. On a new magnesium cement [J]. C R Acad Sci, 1867, 65: 102–104.
[20]  WU Xuequan. J Chin Ceram Soc, 1988, 16(5): 423–428.
[21]  ? 董金美, 余红发, 张立明. 水合法测定活性MgO含量的试验条件研究[J]. 盐湖研究, 2010, 18(1): 38–41.
[22]  DONG Jinmei, YU Hongfa, ZHANG Liming. J Salt Lake Res (in Chinese), 2010, 18(1): 38–41.
[23]  ? 陈悦. 热导式等温量热仪在水泥水化研究中的应用[J]. 现代科学仪器, 2005(5): 59–62.
[24]  CHEN Yue. Modern Scientific Instruments (in Chinese), 2005(5): 59–62.
[25]  ? 李颖, 余红发, 董金美, 等. 氯氧镁胶凝材料吸潮返卤返霜的研究进展[J]. 硅酸盐通报, 2010, 29(4): 858–865.
[26]  LI Ying, YU Hongfa, DONG Jinmei, et al. Bull Chin Ceram Soc (in Chinese), 2010, 29(4): 858–865.
[27]  ? 翟宗玺, 李积才, 夏树屏. MgO–MgCl2–H2O体系的凝固热效应及添加剂的影响[J]. 硅酸盐学报, 1992(4): 315–320.
[28]  ZHAI Zongxi, LI Jicai, XIA Shuping. J Chin Ceram Soc, 1992(4): 315–320.
[29]  ? JANOTKA I, MOJUMDAR S C. Thermal analysis at the evaluation of concrete damage by high temperatures [J]. J Therm Anal Calorim, 2005(81): 197–203.
[30]  ? KJELLSEN K O, DETWILLER R J, GJORV O E. Development of microstructures in plain cement pastes hydrated at different temperatures [J]. Cem Concr Res, 1991, 21(1): 179–189.
[31]  ? 翟宗玺, 刘树深, 夏树屏. 氯氧化镁生成热的研究[J]. 化学学报, 1990, 48: 946–950.
[32]  ZHAI Zongxi, LIU Shushen, XIA Shuping. Acta Chim Sinica (in Chinese), 1990, 48: 946–950.
[33]  ? 聂强, 陈磊, 牛文阁, 等. 不同掺合料对水泥水化热的影响[J]. 粉煤灰, 2007(3): 3–5.
[34]  NIE Qiang, CHEN Lei, NIU Wenge, et al. Fly Ash (in Chinese), 2007(3): 3–5.
[35]  ? 施惠生, 黄小亚. 硅酸盐水泥水化热的研究及其进展[J]. 水泥, 2009(12): 4–10.
[36]  SHI Huisheng, HUANG Xiaoya. Cement (in Chinese), 2009(12): 4–10.
[37]  ? 周梅, 巩玉发, 齐证. 粉煤灰对氯氧镁水泥制品改性的试验研究[J]. 粉煤灰综合利用, 2005(5): 29–32.
[38]  ZHOU Mei, GONG Yufa, QI Zheng. Fly Ash Comprehend Util (in Chinese), 2005(5): 29–32.
[39]  ? 袁润章. 胶凝材料学[M]. 2版. 武汉: 武汉理工大学出版社, 1996: 1–231.
[40]  YUAN Runzhang. Cementitious Material Science (in Chinese). 2nd ed. Wuhan: Wuhan University of Technology Press, 1996: 1–16.
[41]  ? LI Ying, YU Hongfa, ZHENG Lina, et al. Compressive strength of fly ash magnesium oxychloride cement containing granite wastes [J]. Construct Build Mater, 2013, 38: 1–7.
[42]  ? CHAU C K, CHAN James, LI Zongjin. Influences of fly ash on magnesium oxychloride mortar [J]. Cem Concr Compos, 2009, 31(4): 250–254.
[43]  ? 傅献彩, 沈文霞, 姚天扬. 物理化学[M]. 四版. 北京: 高等教育出版社, 2003: 505–1090.
[44]  FU Xiancai, SHEN Wenxia, YAO Tianyang. Physical Chemistry (in Chinese), 4th ed. Beijing: Higher Education Press (in Chinese), 2003: 505–1090.
[45]  

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133