基于Rietveld外标法的水泥及其水化产物定量分析

doi:10.11896/cldb.18050118

材料导报

2019, Vol. 33

Issue (14): 2337-2342 https://doi.org/10.11896/cldb.18050118

无机非金属及其复合材料

基于Rietveld外标法的水泥及其水化产物定量分析

余鑫¹, 于诚¹, 冉千平¹, 刘加平²

1 江苏苏博特新材料股份有限公司,高性能土木工程材料国家重点实验室,南京 211103;
2 东南大学材料科学与工程学院,南京 211189

Quantitative Analysis of Cement and Its Hydration Product by Rietveld External Standard Method

YU Xin¹, YU Cheng¹, RAN Qianping¹, LIU Jiaping²

1 State Key Laboratory of High Performance Civil Engineering Materials, Jiangsu Sobute New Materials Co., Ltd., Nanjing 211103;
2 School of Materials Science and Engineering, Southeast University, Nanjing 211189

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摘要结合Rietveld外标法定量分析原理,在不掺加标样的情况下实现对含有非晶相的水泥及其水化产物的快速检测定量分析。首先利用已知组成的样品研究了Rietveld外标法的准确性,然后对比分析了水泥的外标法与内标法的定量结果,接着对水泥水化产物进行了定量分析,并与热重法测定结果进行比较。结果表明:已知组成样品的定量结果与实际配制值具有良好的一致性。水泥的外标法定量结果平均值与内标法结果接近,但外标法定量结果的标准差更小、数据波动小,水泥水化产物定量结果中氢氧化钙含量与热重定量分析结果基本一致。此外,外标法制样过程也得到了简化,因而在对水泥及其水化产物进行定量分析时更具优势。

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关键词: Rietveld外标法水泥水化产物定量分析

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

发布日期: 2019-06-19

ZTFLH:

TQ172.1

基金资助: 国家重点研发计划项目(2017YFB0310000);国家自然科学基金(51408270)

通讯作者: yucheng@cnjsjk.cn

作者简介: 余鑫,男,硕士,工程师。2016年毕业于大连理工大学,同年入职江苏苏博特新材料股份有限公司从事技术研发工作至今,主要研究水泥基材料的水化和无机材料测试分析方法应用等。于诚,男,博士,高级工程师。2003年8月至2013年6月,在东南大学获得材料学专业学士学位和博士学位,其中2009年10月至2011年12月,在瑞士洛桑联邦理工学院(EPFL)材料系土木工程材料实验室(LMC)联合培养。2013年7月入职江苏苏博特新材料股份有限公司从事技术研发工作至今,主要从事水泥水化、混凝土耐久性、水泥基材料微观结构表征方面的研究工作。

引用本文:

余鑫, 于诚, 冉千平, 刘加平. 基于Rietveld外标法的水泥及其水化产物定量分析[J]. 材料导报, 2019, 33(14): 2337-2342.
YU Xin, YU Cheng, RAN Qianping, LIU Jiaping. Quantitative Analysis of Cement and Its Hydration Product by Rietveld External Standard Method. Materials Reports, 2019, 33(14): 2337-2342.

链接本文:

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

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