不同环境下碳铝酸钙的稳定性研究

硅酸盐通报 ›› 2023, Vol. 42 ›› Issue (3): 845-853.

所属专题：水泥混凝土

不同环境下碳铝酸钙的稳定性研究

余海燕^1,2, 徐晴¹, 王英翔¹, 董德宇¹

1.天津城建大学材料科学与工程学院,天津 300384;
2.天津城建大学建筑绿色功能材料天津市重点实验室,天津 300384

收稿日期:2022-10-19 修订日期:2022-12-02 出版日期:2023-03-15 发布日期:2023-03-31
作者简介:余海燕(1971—),男,博士,教授。主要从事绿色建材的研究。E-mail:yuhy858@tcu.edu.cn
基金资助:
“十三五”科技支撑计划(2018YFD1101002-03)

Stability of Calcium Carboaluminate under Different Environments

YU Haiyan^1,2, XU Qing¹, WANG Yingxiang¹, DONG Deyu¹

1. School of Materials Science and Engineering, Tianjin Chengjian University, Tianjin 300384, China;
2. Tianjin Key Laboratory of Building Green Functional Materials, Tianjin Chengjian University, Tianjin 300384, China

Received:2022-10-19 Revised:2022-12-02 Online:2023-03-15 Published:2023-03-31

摘要/Abstract

摘要： 氯离子引发的钢筋锈蚀是影响钢筋混凝土耐久性的重要因素之一,化学固结法是从根本上解决氯离子对钢筋混凝土结构侵蚀作用的主要方法。通过X射线衍射分析、热重分析、扫描电子显微镜和化学分析对不同环境下碳铝酸钙的稳定性进行研究。结果表明,碳铝酸钙呈六方片状,在低于120 ℃时具有良好的热稳定性,在氯盐和硫酸盐溶液中很不稳定,碳铝酸钙中的CO^2-₃容易被Cl^-和SO^2-₄取代生成Friedel’s盐和钙矾石。碳铝酸钙在酸性环境中不稳定,会与酸发生化学反应,在pH≥11的碱性环境中可以稳定存在。

关键词: 碳铝酸钙, 氯离子, 稳定性, Friedel’s盐, 钙矾石, 钢筋锈蚀

Abstract: The corrosion of reinforcement caused by chloridion is one of the most important factors affecting the durability of reinforced concrete. Chemical consolidation method is the main method to solve the erosion effect of chloridion on reinforced concrete structures. The stability of calcium carboaluminate under different environments was studied by X-ray diffraction analysis, thermogravimetric analysis, scanning electron microscopy and chemical analysis. The results show that calcium carboaluminate is hexagonal plate and has good thermal stability below 120 ℃. But calcium carboaluminat is very unstable in chloride and sulfate solutions, and the CO^2-₃ in calcium carboaluminate is easily replaced by Cl^- and SO^2-₄ to form Friedel’s salt and ettringite. Calcium carboaluminate is unstable in acidic environment, and will react with acid chemically. It is stable in alkaline environment with pH≥11.

Key words: calcium carboaluminate, chloridion, stability, Friedel’s salt, ettringite, corrosion of reinforcement

中图分类号:

TQ129

余海燕, 徐晴, 王英翔, 董德宇. 不同环境下碳铝酸钙的稳定性研究[J]. 硅酸盐通报, 2023, 42(3): 845-853.

YU Haiyan, XU Qing, WANG Yingxiang, DONG Deyu. Stability of Calcium Carboaluminate under Different Environments[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2023, 42(3): 845-853.

参考文献

[1] 潘志鹏. 影响钢筋混凝土结构耐久性因素分析与控制措施探讨[J]. 福建建材,2015(7): 15-17.
PAN Z P. Analysis of factors affecting durability of reinforced concrete structure and discussion on control measures[J]. Fujian Building Materials, 2015(7): 15-17 (in Chinese).
[2] 金伟良, 薛文, 陈驹. 海岸及近海混凝土材料耐久性设计指标的影响参数分析[J]. 建筑结构学报, 2011, 32(12): 86-97.
JIN W L, XUE W, CHEN J. Effecting coefficients for concrete structure durability design index[J]. Journal of Building Structures, 2011, 32(12): 86-97 (in Chinese).
[3] 叶梦琦. 氯盐侵蚀下混凝土结构裂缝控制模糊可靠度研究[D]. 武汉: 湖北工业大学, 2020.
YE M Q. Research on fuzzy reliability of crack control in concrete structure under chloride erosion[D]. Wuhan: Hubei University of Technology, 2020 (in Chinese).
[4] 李悦, 丁庆军, 胡曙光. 石灰石矿粉在水泥混凝土中的应用[J]. 武汉理工大学学报, 2007, 29(3): 35-37+41.
LI Y, DING Q J, HU S G. Utilization of limestone as mineral admixture in cement and concrete[J]. Journal of Wuhan University of Technology, 2007, 29(3): 35-37+41 (in Chinese).
[5] BONAVETTI V L, RAHHAL V F, IRASSAR E F. Studies on the carboaluminate formation in limestone filler-blended cements[J]. Cement and Concrete Research, 2001, 31(6): 853-859.
[6] KUZEL H J, PÖLLMANN H. Hydration of C₃A in the presence of Ca(OH)₂, CaSO₄·2H₂O and CaCO₃[J]. Cement and Concrete Research, 1991, 21(5): 885-895.
[7] SHI Z G, GEIKER M R, DE WEERDT K, et al. Role of calcium on chloride binding in hydrated Portland cement-metakaolin-limestone blends[J]. Cement and Concrete Research, 2017, 95: 205-216.
[8] WANG Y Y, SHUI Z H, GAO X, et al. Utilizing coral waste and metakaolin to produce eco-friendly marine mortar: hydration, mechanical properties and durability[J]. Journal of Cleaner Production, 2019, 219: 763-774.
[9] WANG Y Y, SHUI Z H, YU R, et al. Chloride ingress and binding of coral waste filler-coral waste sand marine mortar incorporating metakaolin[J]. Construction and Building Materials, 2018, 190: 1069-1080.
[10] BALONIS M, LOTHENBACH B, LE SAOUT G, et al. Impact of chloride on the mineralogy of hydrated Portland cement systems[J]. Cement and Concrete Research, 2010, 40(7): 1009-1022.
[11] MATSCHEI T, LOTHENBACH B, GLASSER F P. The AFm phase in Portland cement[J]. Cement and Concrete Research, 2007, 37(2): 118-130.
[12] GLASSER F P, KINDNESS A, STRONACH S A. Stability and solubility relationships in AFm phases[J]. Cement and Concrete Research, 1999, 29(6): 861-866.
[13] 张健. 严酷环境下多种侵蚀性离子交互作用的热动力学机理[D]. 南京: 东南大学, 2018.
ZHANG J. Thermodynamic mechanism of various corrosive ion interactions in sever environments[D]. Nanjing: Southeast University, 2018 (in Chinese).
[14] 严子伟, 刘黎, 孙晋峰, 等. 铝酸三钙和碳酸钙对硅酸盐水泥早期力学强度及凝结时间的协同作用研究[J]. 硅酸盐通报, 2021, 40(5): 1470-1476.
YAN Z W, LIU L, SUN J F, et al. Synergistic effect of tricalcium aluminate and calcium carbonate on early mechanical strength and setting time of Portland cement[J]. Bulletin of the Chinese Ceramic Society, 2021, 40(5): 1470-1476 (in Chinese).
[15] 刘家文. 碳酸钙-铝酸盐矿物复合体系的水化行为与胶凝性能研究[D]. 重庆: 重庆大学, 2020.
LIU J W. Research on hydration behavior and cementitious properties of calcium carbonate and aluminate minerals composite systems[D]. Chongqing: Chongqing University, 2020 (in Chinese).
[16] ANTONI M, ROSSEN J, MARTIRENA F, et al. Cement substitution by a combination of metakaolin and limestone[J]. Cement and Concrete Research, 2012, 42(12): 1579-1589.
[17] VANCE K, AGUAYO M, OEY T, et al. Hydration and strength development in ternary Portland cement blends containing limestone and fly ash or metakaolin[J]. Cement and Concrete Composites, 2013, 39: 93-103.
[18] CABRERA J, ROJAS M F. Mechanism of hydration of the metakaolin-lime-water system[J]. Cement and Concrete Research, 2001, 31(2): 177-182.
[19] 马保国, 单志欣, 谭洪波, 等. 不同细度的铝酸三钙对氯离子固化能力的影响[J]. 武汉理工大学学报, 2017, 39(12): 1-6.
MA B G, SHAN Z X, TAN H B, et al. Influence of the fineness of tricalcium aluminate on chloride ion binding capability[J]. Journal of Wuhan University of Technology, 2017, 39(12): 1-6 (in Chinese).
[20] 常钧, 熊苍. 碱环境下单碳型水化碳铝酸钙加速碳酸化机理[J]. 大连理工大学学报, 2019, 59(5): 536-542.
CHANG J, XIONG C. Accelerated carbonation mechanism of monocarboaluminate under alkaline environment[J]. Journal of Dalian University of Technology, 2019, 59(5): 536-542 (in Chinese).
[21] 史天尧, 陈星宇, 张敏, 等. 水泥基材料中氯离子结合机理及其影响因素研究进展[J]. 硅酸盐通报, 2021, 40(1): 13-24.
SHI T Y, CHEN X Y, ZHANG M, et al. Mechanism of chloride binding and its influence factors in cement-based materials[J]. Bulletin of the Chinese Ceramic Society, 2021, 40(1): 13-24 (in Chinese).
[22] 张鸿飞, 叶家元, 任俊儒, 等. -10 ℃条件下氯化钙溶液对硫铝酸盐水泥性能的影响[J]. 硅酸盐学报, 2022, 50(11): 2834-2843.
ZHANG H F, YE J Y, REN J R, et al. Effect of calcium chloride solution on performance of calcium sulphoaluminate cement at -10 ℃[J]. Journal of the Chinese Ceramic Society, 2022, 50(11): 2834-2843 (in Chinese).

不同环境下碳铝酸钙的稳定性研究

Stability of Calcium Carboaluminate under Different Environments

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	周丽娜, 蔡颖, 马财龙, 罗玲. 水滑石复合水泥基材料氯离子吸附能力的研究进展[J]. 硅酸盐通报, 2023, 42(4): 1137-1147.
[2]	范小春, 汪阳, 高旭, 张宇, 袁波. 亚硝酸钙与富铝矿相协同调控碱矿渣氯离子固化能力研究[J]. 硅酸盐通报, 2023, 42(4): 1148-1155.
[3]	陈春红, 俞江, 刘荣桂, 王磊, 刘惠, 伍金龙. 干湿循环下再生细骨料混凝土的氯离子渗透性能[J]. 硅酸盐通报, 2023, 42(4): 1217-1225.
[4]	王杰, 王勇, 王宇强, 王彩萍, 叶圣茂, 高鹏. 循环流化床燃煤固硫灰的CBR特性及膨胀机理研究[J]. 硅酸盐通报, 2023, 42(4): 1323-1332.
[5]	修建得, 金祖权, 李宁, 侯保荣. 海洋盐雾环境下混凝土中氯离子传输研究进展[J]. 硅酸盐通报, 2023, 42(3): 771-785.
[6]	周剑峰, 杨涛, 张菁燕, 周文平, 高璇. 早期水热养护对铝酸钙水泥结构稳定性的影响[J]. 硅酸盐通报, 2023, 42(3): 802-807.
[7]	赵立, 孙江涛, 吴定略, 李志堂, 何涛, 关业程, 沈卫国. 石屑湿喷混凝土的制备与性能研究[J]. 硅酸盐通报, 2023, 42(3): 1016-1024.
[8]	李宇航, 温勇, 韩国旗, 郝恩泽, 刘佳, 马丽莎. 持续荷载和锂渣取代量对混凝土抗氯离子渗透性能的影响[J]. 硅酸盐通报, 2023, 42(2): 598-606.
[9]	徐宁, 杨恒, 熊传胜, 张栋, 蒋鹏, 刘璨, 刘欣昕, 程星燎. 钢筋混凝土中防腐添加剂的研究进展[J]. 硅酸盐通报, 2023, 42(1): 1-21.
[10]	李妤茜, 乔秀臣. 外部因素对钙矾石晶体结构及形貌的影响综述[J]. 硅酸盐通报, 2023, 42(1): 31-47.
[11]	陈波, 王伟鱼, 丰雨秋, 饶美娟. 蒸养条件下矿粉、粉煤灰对高铁相硅酸盐水泥基材料毛细孔和抗侵蚀性能的影响[J]. 硅酸盐通报, 2023, 42(1): 162-169.
[12]	李鑫, 杜惠惠, 倪文, 傅平丰, 王飞. KR脱硫渣碱激发矿渣的配比优化及水化特性[J]. 硅酸盐通报, 2023, 42(1): 170-179.
[13]	武双磊, 季军荣, 周威杰, 陈宇, 周润铎, 周洲, 陈胡星. 乳酸钠对超硫酸盐水泥强度的影响及作用机理[J]. 硅酸盐通报, 2022, 41(9): 3008-3015.
[14]	徐鑫, 张鸿儒, 季韬, 赵宝军, 姚杰. 再生细骨料含水状态对砂浆性能的影响[J]. 硅酸盐通报, 2022, 41(9): 3036-3046.
[15]	单继雄, 李军, 侯永生, 胡艳民, 刘畅. 钙铝类水滑石对混凝土抗盐冻性能的影响[J]. 硅酸盐通报, 2022, 41(9): 3084-3090.