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硅酸盐通报 ›› 2021, Vol. 40 ›› Issue (9): 2871-2876.

• 水泥混凝土 • 上一篇    下一篇

煅烧温度对水泥熟料矿物相含量及形貌影响的Rietveld法研究

杨欢1, 齐砚勇1, 高宇蕾2, 邓磊3, 李诗颖4   

  1. 1.西南科技大学材料科学与工程学院,绵阳 621010;
    2.绵阳职业技术学院材料与建造学院,绵阳 621000;
    3.四川峨胜水泥集团股份有限公司,乐山 614222;
    4.四川利森建材集团有限公司,德阳 618400
  • 收稿日期:2021-03-26 修回日期:2021-04-13 出版日期:2021-09-15 发布日期:2021-10-08
  • 通讯作者: 齐砚勇,博士,副教授。E-mail:274217698@qq.com
  • 作者简介:杨 欢(1995—),女,硕士研究生。主要从事水泥工艺的研究。E-mail:1196875298@qq.com

Influence of Calcination Temperature on Mineral Phase Content and Morphology of Cement Clinker by Rietveld Method

YANG Huan1, QI Yanyong1, GAO Yulei2, DENG Lei3, LI Shiying4   

  1. 1. School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China;
    2. School of Materials and Construction, Mianyang Polytechnic, Mianyang 621000, China;
    3. Sichuan Esheng Cement Group Co., Ltd., Leshan 614222, China;
    4. Sichuan Lisen Building Materials Group Co., Ltd., Deyang 618400, China
  • Received:2021-03-26 Revised:2021-04-13 Online:2021-09-15 Published:2021-10-08

摘要: 为了探究煅烧温度对水泥熟料矿物相的影响,采用XRD分析法、Rietveld法以及岩相法,对不同煅烧温度下得到的熟料矿物相进行定性、定量以及形貌分析。研究结果表明:采用Rietveld法可快速、准确测得熟料中各矿物相的相对含量;通过Rietveld法计算得到的矿物相含量可明显看出,煅烧温度对熟料中各矿物相的含量有直接影响,其中对C3S和C2S含量的影响最为明显;Rietveld法与鲍格算法得到的矿物相含量结果接近,但拟合得到的C3A含量会偏低,这是由于熟料的急冷使得C3A以玻璃相形式存在;煅烧温度升高,晶体成核和发育更加完善,熟料能呈现更好的形貌。

关键词: Rietveld法, 岩相, 煅烧温度, 硅酸盐水泥熟料, 矿物相含量

Abstract: In order to explore the influence of calcination temperature on the mineral phase of cement clinker, the clinker was analyzed qualitatively, quantitatively and morphologically by XRD, Rietveld and lithofacies method. The results show that Rietveld method can be used to measure the relative content of each mineral phase in the clinker quickly and accurately. According to the content of mineral phase calculated by Rietveld method, it can be seen that calcination temperature has a direct effect on the content of mineral phase in the clinker, especialy C3S and C2S. The results of mineral phase content obtained by Rietveld method are close to those obtained by Bague algorithm, but the content of C3A obtained by fitting is lower. This is due to the rapid cooling of clinker which makes C3A exist as glass phase. With the increase of calcination temperature, the crystal nucleation and development are more perfect, and the clinker shows better morphology.

Key words: Rietveld method, lithofacies, calcination temperature, Portland cement clinker, mineral phase content

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