CaF2污泥对硅酸盐水泥性能的影响及机理分析

硅酸盐通报 ›› 2024, Vol. 43 ›› Issue (3): 1030-1038.

所属专题：资源综合利用

CaF₂污泥对硅酸盐水泥性能的影响及机理分析

胡川^1,2, 杨文伟^1,2, 赵环环¹

1.宁夏大学土木与水利工程学院,银川 750021;
2.宁夏土木工程防震减灾工程技术研究中心,银川 750021

收稿日期:2023-10-10 修订日期:2023-12-01 出版日期:2024-03-15 发布日期:2024-03-27
通信作者: 杨文伟,博士,教授。E-mail:yww@nxu.edu.cn
作者简介:胡川(2000—),男,硕士研究生。主要从事固废利用及新型建筑材料的研究。E-mail:nxhuchuan@163.com
基金资助:
宁夏回族自治区2023年大学生创新创业训练计划(S202310749136)

Effect and Mechanism Analysis of CaF₂ Sludge on Ordinary Portland Cement

HU Chuan^1,2, YANG Wenwei^1,2, ZHAO Huanhuan¹

1. School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China;
2. Ningxia Center for Research on Earthquake Protection and Disaster Mitigation in Civil Engineering, Yinchuan 750021, China

Received:2023-10-10 Revised:2023-12-01 Online:2024-03-15 Published:2024-03-27

摘要/Abstract

摘要： 固废利用是实现“双碳”目标的重要途径之一。本文以固废CaF₂污泥为水泥掺合料,通过抗压强度、浆体流动度试验探讨了CaF₂污泥掺量对水泥胶凝材料性能的影响,并结合XRD、SEM及TGA-DSC等微观表征测试进行机理分析。结果表明,CaF₂污泥的掺加有利于提高水泥胶凝材料的早期强度,CaF₂污泥掺量为8%(质量分数)的胶凝材料抗压强度表现较好。CaF₂污泥的掺加会导致浆体流动度降低,但掺量低于10%(质量分数)时对浆体流动度影响并不显著,掺量为8%、10%(质量分数)时浆体流动度比未掺加CaF₂污泥时降低了3.0%。CaF₂污泥在胶凝材料中主要起物理效应,CaF₂污泥能够形成更多的结晶位点,促进水泥水化。CaF₂污泥掺量增加使水泥的稀释效应及团聚效应显著。掺量为8%(质量分数)的CaF₂污泥复合水泥的微观性能较好。

关键词: CaF₂污泥, 水泥, 抗压强度, 浆体流动度, 微观机理

Abstract: Solid waste utilization is one of the important ways to achieve the goal of “double carbon”. Taking solid waste CaF₂ sludge as cement admixture, the effect of CaF₂ sludge content on the properties of cement cementing material was investigated through compressive strength and slurry fluidity tests, and the mechanism was analyzed by XRD, SEM and TGA-DSC microscopic characterization tests. The results show that the addition of CaF₂ sludge can improve the early strength of cement cementing material. The compressive strength of cement cementing material with 8% (mass fraction) CaF₂ sludge is better. The addition of CaF₂ sludge leads to the decrease of slurry fluidity, but the addition of less than 10% (mass fraction) has no significant effect on slurry fluidity, compared with the cement without CaF₂ sludge, the slurry fluidity of the cement with 8% and 10% (mass fraction) CaF₂ sludge is reduced by 3.0%. CaF₂ sludge mainly plays a physical effect in cementing material, and CaF₂ sludge can form more crystallization sites to promote cement hydration. The dilution effect and agglomeration effect of CaF₂ sludge to cement increase significantly. The microscopic properties of cement with 8% (mass fraction) CaF₂ sludge are better.

Key words: CaF₂ sludge, cement, compressive strength, slurry fluidity, microscopic mechanism

中图分类号:

TQ172

胡川, 杨文伟, 赵环环. CaF₂污泥对硅酸盐水泥性能的影响及机理分析[J]. 硅酸盐通报, 2024, 43(3): 1030-1038.

HU Chuan, YANG Wenwei, ZHAO Huanhuan. Effect and Mechanism Analysis of CaF₂ Sludge on Ordinary Portland Cement[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(3): 1030-1038.

参考文献

[1] 袁立竹, 王加宁, 马春阳, 等. 土壤氟形态与氟污染土壤修复[J]. 应用生态学报, 2019, 30(1): 10-20.
YUAN L Z, WANG J N, MA C Y, et al. Fluorine speciation in soil and the remediation of fluorine contaminated soil[J]. Chinese Journal of Applied Ecology, 2019, 30(1): 10-20 (in Chinese).
[2] 汤文文, 林子增. 复合硅酸盐水泥对含氟污泥的固化处理[J]. 精细化工, 2021, 38(8): 1705-1710.
TANG W W, LIN Z Z. Solidification treatment of fluorine-containing sludge by composite Portland cement[J]. Fine Chemicals, 2021, 38(8): 1705-1710 (in Chinese).
[3] 何廷树, 王敏豪, 达永琪, 等. 含氟污泥的理化性质及其对水泥性能和环境安全性的影响[J]. 硅酸盐学报, 2020, 48(8): 1295-1301.
HE T S, WANG M H, DA Y Q, et al. Physicochemical performance of fluorine-containing sludge and its effect on cement properties and environmental safety[J]. Journal of the Chinese Ceramic Society, 2020, 48(8): 1295-1301 (in Chinese).
[4] 叶庆龙, 丁学峰. 一种氟化钙污泥再生利用及资源化的方法: CN113003598A[P]. 2021-06-22.
YE Q L, DING X F. The invention relates to a method for recycling and resource utilization of calcium fluoride sludge: CN113003598A[P]. 2021-06-22 (in Chinese).
[5] 任孟杰, 郭焱. 氟化钙污泥和赤泥共烧结制备砖块的研究[J]. 环境工程, 2016, 34(增刊1): 769-772.
REN M J, GUO Y. Study on co-sintering of calcium fluoride sludge and red mud to prepare bricks[J]. Environmental Engineering, 2016, 34(supplement 1): 769-772 (in Chinese).
[6] 任孟杰, 郭焱. 利用拜耳法赤泥和氟化钙污泥制备烧结砖块[J]. 环境工程学报, 2017, 11(8): 4797-4802.
REN M J, GUO Y. Using Bayer red mud and calcium fluoride sludge to make co-fired bricks[J]. Chinese Journal of Environmental Engineering, 2017, 11(8): 4797-4802 (in Chinese).
[7] ZHU P, WANG L Y, HONG D, et al. A study of making synthetic oxy-fluoride construction material using waste serpentine and kaolin mining tailings[J]. International Journal of Mineral Processing, 2012, 104/105: 31-36.
[8] ZHU P, CAO Z B, YE Y L, et al. Reuse of hazardous calcium fluoride sludge from the integrated circuit industry[J]. Waste Management & Research: the Journal for a Sustainable Circular Economy, 2013, 31(11): 1154-1159.
[9] ZHU P, CAO Z B, WANG L Y, et al. Recycling of calcium fluoride sludge as ceramic material using low temperature sintering technology[J]. Journal of Material Cycles and Waste Management, 2014, 16(1): 156-161.
[10] RAO S M, VENKATARAMA REDDY B V, LAKSHMIKANTH S, et al. Re-use of fluoride contaminated bone char sludge in concrete[J]. Journal of Hazardous Materials, 2009, 166(2/3): 751-756.
[11] LIN W T. Characterization and permeability of cement-based materials containing calcium fluoride sludge[J]. Construction and Building Materials, 2019, 196: 564-573.
[12] 关家伦, 郑智和, 林岩骞. 半导体业氟化钙污泥资源化途径探讨[J]. 减废咨询, 2002(41): 3-6.
GUAN J L, ZHENG Z H, LIN Y Q. Research of utilization of CaF₂ sludge from semiconductor manufacture[J]. Waste reduction Consultation, 2002(41): 3-6 (in Chinese).
[13] KOWALSKI Z, PASZEK A. Production of synthetic fluorspar from waste calcium fluoride slurry[J]. Polish Journal of Environmental Studies, 1999, 8(2): 125-128.
[14] 陈登, 宋旭艳, 王爱国, 等. 偏高岭土对石灰石粉-水泥水化和强度的影响[J]. 非金属矿, 2020, 43(4): 37-40.
CHEN D, SONG X Y, WANG A G, et al. Effect of metakaolin on hydration and strength of limestone-cement[J]. Non-Metallic Mines, 2020, 43(4): 37-40 (in Chinese).
[15] WANG T K, YANG W W, ZHANG J T. Experimental studies on mechanical properties and microscopic mechanism of marble waste powder cement cementitious materials[J]. Crystals, 2022, 12(6): 868.
[16] 杨进波, 赵钲洋, 尹航. 基于分子动力学的C-S-H凝胶性能研究进展[J]. 材料导报, 2021, 35(5): 5095-5101+5121.
YANG J B, ZHAO Z Y, YIN H. Research development on molecular dynamics of C-S-H gels[J]. Materials Reports, 2021, 35(5): 5095-5101+5121 (in Chinese).
[17] 岳汉威, 文俊强, 刘叶栋, 等. 利用FT-IR研究硫酸盐侵蚀后混凝土表层的胀裂(英文)[J]. 硅酸盐通报, 2011, 30(4): 909-914.
YUE H W, WEN J Q, LIU Y D, et al. The spalling and pulverization of concrete surface under sulfate attack: an investigation by FT-IR[J]. Bulletin of the Chinese Ceramic Society, 2011, 30(4): 909-914.
[18] TITUS E, MISRA D S, SIKDER A K, et al. Quantitative analysis of hydrogen in chemical vapor deposited diamond films[J]. Diamond and Related Materials, 2005, 14(3/4/5/6/7): 476-481.
[19] RAMADJI C, MESSAN A, PRUD'HOMME E. Influence of granite powder on physico-mechanical and durability properties of mortar[J]. Materials, 2020, 13(23): 5406.
[20] 史才军, 元强. 水泥基材料测试分析方法[M]. 北京: 中国建筑工业出版社, 2018.
SHI C J, YUAN Q. Testing and analysis methods for cement-based materials[M]. Beijing: China Construction Industry Press, 2018 (in Chinese).

CaF₂污泥对硅酸盐水泥性能的影响及机理分析

Effect and Mechanism Analysis of CaF₂ Sludge on Ordinary Portland Cement

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