基于Rietveld外标法的水泥及其水化产物定量分析

doi:10.11896/cldb.18050118

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Abstract Combined with the quantitative analysis theory of Rietveld external standard method, quantitative analysis of cement and its hydration product with amorphous phase was carried out without mixing internal standard sample. The accuracy of the method was investigated by samples of known composition. Quantitative analysis results of cement by external standard method and internal standard method were compared and analyzed. Hydration products of cement were also quantified by the method and compared with the thermogravimetric analysis results. Results indicate that quantitative analysis values by external standard method show good agreement with the actual mixing ratios of samples. The mean va-lues of quantitative analysis results by two methods are close, but the standard deviation of external standard method is smaller. The content of calcium hydroxide in the quantitative results of hydration products is consistent with that of thermogravimetric analysis. Besides, the sample pre-paration process of external standard method is also simplified to ensure a more preferred application in the quantitative analysis of cement and its hydration product.

Key words： Rietveld external standard method cement hydration product quantitative analysis

Published: 19 June 2019

CLC number:

TQ172.1

Fund:This work was financially supported by the National Key Research and Development Program of China (2017YFB0310000), the National Natural Science Foundation Youth Fund of China (51408270).

About author:: Xin Yu, male, engineer. He received his M.S. degree from Dalian University of Technology in 2016. Then he joined Jiangsu Subote New Material Co., Ltd. and has been engaged in technology research and deve-lopment since then. His research interests are hydration of cement-based materials and application of test and analysis method for inorganic materials.Cheng Yu, male, senior engineer. He received his Ph.D. degree from Southeast University in 2013. Then he joined Jiangsu Subote New Material Co., Ltd. and has been engaged in technology research and development since then. His research interests are hydration of cement, durability of concrete and microstructure cha-racterization of cement-based materials.

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	YU Xin
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	RAN Qianping
	LIU Jiaping

Cite this article:

YU Xin,YU Cheng,RAN Qianping, et al. Quantitative Analysis of Cement and Its Hydration Product by Rietveld External Standard Method[J]. Materials Reports, 2019, 33(14): 2337-2342.

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http://www.mater-rep.com/EN/10.11896/cldb.18050118 OR http://www.mater-rep.com/EN/Y2019/V33/I14/2337

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