对磷酸镁水泥在不同温度处理下的表观形貌、体积收缩率和抗压强度进行了研究,并通过XRD、SEM对各个温度阶段的物相及微观形貌进行了分析,利用TG-DSC研究了加热过程中的质量变化和所产生的热效应。结果表明,在200℃以下,磷酸镁水泥强度减小较大;在400～800℃之间,强度变化相对较小;在更高的温度下,由于烧结现象的出现,磷酸镁水泥的强度甚至有所增长;当温度达到1400℃,磷酸镁水泥的整体结构仍然保持完整,但体积则发生了较大的收缩。磷酸镁水泥具有良好的高温稳定性。
Apparent morphological, volume shrinkage and compressive strength of after different temperature treatment were studied, as well as using XRD and SEM to study phases and microstructure of samples, TG-DSC to study the quality change and thermal effects during heating. Results indicate, compressive strength of magnesium phosphate cement reduces large when heating to 200°C, the strength of samples changes were relatively small between 400-800°C. The strength of magnesium phosphate cement increased even when temperatures reach 1400°C since sintering phenomena appear. Magnesium phosphate cement structure remains intact among the whole temperature range, but there have been larger change in the volume shrinkage. Magnesium phosphate cement has a good thermal stability.
参考文献
| [1] | Wang Hongtao;Qian Jueshi;Wang Jianguo .[J].Materials Review,2005,19(12):46-47. |
| [2] | Du Lei;Yan Yun;Hu Zhihua.[J].cement,2007(05):23-25. |
| [3] | Jiang Hongyi;Zhang Lianmeng .[J].武汉工业大学学报,2001,23(01):32-34. |
| [4] | Ding Zhu I;i Zongjin .[J].Chinese Journal of Materials Research,2006,4:141-147. |
| [5] | Zhu Ding;Zongjin Li .High-Early-Strength Magnesium Phosphate Cement with Fly Ash[J].ACI materials journal,2005(6):375-381. |
| [6] | 雒亚莉,陈兵.磷酸镁水泥的研究与工程应用[J].水泥,2009(09):16-19. |
| [7] | 彭程,吴会军,丁云飞.建筑保温隔热材料的研究及应用进展[J].节能技术,2010(04):332-335. |
| [8] | 丁庆军,张立华,胡曙光,王发洲.防辐射混凝土及核固化材料研究现状与发展[J].武汉理工大学学报,2002(02):16-19. |
| [9] | 汪宏涛,曹巨辉.军事工程用磷酸盐水泥材料研究[J].后勤工程学院学报,2005(01):5-7. |
| [10] | Li Zhonghua;Zhang Jialiang;Jiang Yaqing .Study on the properties of phosphate rapid repair material[J].China Concrete and Cement Products,2011,8:8-11. |
| [11] | Yang Q;Zhu B;Zhang S et al.Properties and applications of magnesia-phosphate cement mortar for raped repair of concrete[J].Cement and Concrete Research,2000,30:1807-1813. |
| [12] | 王芳,鲍鸥.苏联对"切尔诺贝利事故"应急处理的启示[J].工程研究-跨学科视野中的工程,2011(01):87-101. |
| [13] | Environmental effects of the chernobyl accident and their remediation:twenty years of experience:Report of the UN Chernobyl forum expert group "environment"[R].Vienna:International Atomic Energy Agency,2006. |
| [14] | Chernobyl's legacy: health, environmental and so cio-economic impacts and recommendations to the gov ernments of Belarus, the Russian Federation and U kraine, the Chernobyl Forum: 2003 2005[R].Vienna International Atomic Energy Agency AEA,2006. |
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