群青蓝颜料对白色硅酸盐水泥水化与着色效果的影响

硅酸盐通报 ›› 2024, Vol. 43 ›› Issue (12): 4313-4321.

群青蓝颜料对白色硅酸盐水泥水化与着色效果的影响

刘佳¹, 廖宜顺^1,2,3, 许凯钦¹, 万世辉⁴

1.武汉科技大学城市建设学院, 武汉 430065;
2.城市更新湖北省工程研究中心, 武汉 430065;
3.武汉科技大学高性能工程结构研究院, 武汉 430065;
4.中建商品混凝土有限公司, 武汉 430074

收稿日期:2024-07-10 修订日期:2024-08-20 出版日期:2024-12-15 发布日期:2024-12-19
通信作者: 廖宜顺,博士,副教授。E-mail:liaoyishun@wust.edu.cn
作者简介:刘佳(1995—),女,硕士研究生。主要从事新型水泥基材料的研究。E-mail:1678377329@qq.com
基金资助:
湖北省建设科技计划项目(2022-2198-30);湖北省青年科技人才项目(2023DJC182)

Effect of Ultramarine Blue Pigments on Hydration and Coloring Effect of White Portland Cement

LIU Jia¹, LIAO Yishun^1,2,3, XU Kaiqin¹, WAN Shihui⁴

1. School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China;
2. Hubei Provincial Engineering Research Center of Urban Regeneration, Wuhan 430065, China;
3. Institute of High-Performance Engineering Structure, Wuhan University of Science and Technology, Wuhan 430065, China;
4. China Construction Commercial Concrete Co.,Ltd., Wuhan 430074, China

Received:2024-07-10 Revised:2024-08-20 Published:2024-12-15 Online:2024-12-19

摘要/Abstract

摘要： 本研究旨在探究群青蓝颜料对白色硅酸盐水泥物理力学性能、水化特征以及着色效果的影响。用2%、4%和6%的群青蓝颜料等质量取代白色硅酸盐水泥,在水胶比为0.45的基础上,测试复合胶凝体系的流动度、凝结时间以及抗压强度,采用电阻率和热分析方法(TG/DTG)并结合XRD对复合胶凝体系的水化速率和产物进行了研究,采用CIELAB色彩空间对群青蓝颜料的着色效果进行评价。结果表明,随着群青蓝颜料掺量的增大,白色硅酸盐水泥浆体的流动度逐渐降低,凝结时间逐渐缩短。且随着群青蓝颜料掺量的增加而不断减少。掺入群青蓝颜料增大了白色硅酸盐水泥浆体3 d的电阻率,加快了水泥水化。群青蓝颜料会消耗水泥水化产生的氢氧化钙,生成类似水泥水化产物,使结构更加致密,提高了水泥试样的抗压强度。群青蓝颜料掺量越多,试样表面亮度越暗,掺量为6%时接近颜色饱和点。

关键词: 群青蓝颜料, 白色硅酸盐水泥, 抗压强度, 水化速率, 水化产物, 着色效果

Abstract: The aim of this study was to investigate the effects of ultramarine blue pigments on the physical and mechanical properties, hydration characteristics and coloring effect of white Portland cement. The white Portland cement was replaced by 2%, 4% and 6% ultramarine blue pigments, and the fluidity, setting time and compressive strength of the composite cementitous system were tested on the basis of the water-binder ratio of 0.45. The hydration rate and products were studied by electrical resistivity and thermal analysis method (TG/DTG) combined with XRD. The coloring effect of ultramarine blue pigments was studied in CIELAB color space. The results show that the fluidity and setting time of the white Portland cement paste decrease with the increase of ultramarine blue pigments content. The addition of ultramarine blue pigments increases the resistivity in 3 d of the white Portland cement paste and accelerates the cement hydration rate. Ultramarine blue pigments consume calcium hydroxide produced by cement hydration to form products similar to cement hydration, which makes the structure more compact and improves the compressive strength of cement samples. The higher the amount of ultramarine blue pigments, the darker the surface brightness of the samples becomes, and the color saturation point is basically reached when the content of pigments is 6%.

Key words: ultramarine blue pigment, white Portland cement, compressive strength, hydration rate, hydration product, coloring effect

中图分类号:

TQ172

刘佳, 廖宜顺, 许凯钦, 万世辉. 群青蓝颜料对白色硅酸盐水泥水化与着色效果的影响[J]. 硅酸盐通报, 2024, 43(12): 4313-4321.

LIU Jia, LIAO Yishun, XU Kaiqin, WAN Shihui. Effect of Ultramarine Blue Pigments on Hydration and Coloring Effect of White Portland Cement[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(12): 4313-4321.

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