有机酸活化偏高岭土混凝土性能研究

硅酸盐通报 ›› 2024, Vol. 43 ›› Issue (7): 2434-2440.

所属专题：水泥混凝土

有机酸活化偏高岭土混凝土性能研究

李安¹, 王彦军², 张志杰³, 范志宏^1,4

1.水工构造物耐久性技术交通运输行业重点实验室,广州 510230;
2.中交四航局第三工程有限公司,湛江 524005;
3.华南理工大学材料科学与工程学院,广州 510640;
4.南方海洋科学与工程广东省实验室(珠海),珠海 519000

收稿日期:2023-11-29 修订日期:2024-03-22 出版日期:2024-07-15 发布日期:2024-07-24
作者简介:李安(1988—),男,高级工程师。主要从事新型建筑材料及开发相关方向的研究。E-mail:532775195@qq.com
基金资助:
南方海洋科学与工程广东省实验室(珠海)河口海岸与岛礁工程创新团队建设项目(311020009)

Properties of Organic Acid Activated Metakaolin Concrete

LI An¹, WANG Yanjun², ZHANG Zhijie³, FAN Zhihong^1,4

1. Key Laboratory of Harbor & Marine Structure Durability Technology, Ministry of Transport, Guangzhou 510230, China;
2. The Third Engineering Company of CCCC Fourth Harbor Engineering Co., Ltd., Zhanjiang 524005, China;
3. School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China;
4. Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519000, China

Received:2023-11-29 Revised:2024-03-22 Online:2024-07-15 Published:2024-07-24

摘要/Abstract

摘要： 高岭土是自然界中常见的一种黏土矿物,是一种层状铝硅酸盐矿物。本文选用小分子草酸和柠檬酸复合有机酸对高岭土进行酸活化处理,然后通过高温煅烧与机械粉磨,制备一种有机酸活化偏高岭土;通过SEM和TEM分析有机酸活化方式对高岭土微观形貌的影响,研究有机酸活化偏高岭土对混凝土力学性能、干缩性能、电通量等宏观性能以及微观孔隙结构的影响。结果表明:有机酸活化使高岭土中部分Si和Al被溶出,层状结构棱角与层间遭到破坏,微观形貌变得相对毛糙,煅烧温度降低160 ℃,比表面积增大;有机酸活化偏高岭土通过增强混凝土致密性来提升混凝土综合性能,其中28 d抗压强度提升23.2%,28 d电通量降低51.8%,优于偏高岭土和硅灰。

关键词: 高岭土, 有机酸活化, 有机酸, 混凝土, 宏观性能, 微观结构

Abstract: Kaolin is a common clay minerals in nature and a layered aluminosilicate mineral. Small molecule oxalic acid and citric acid were selected as composite organic acids, and kaolin was subjected to acid activation treatment to prepare an organic acid activated metakaolin by high temperature calcination and mechanical grinding. The influences of organic acid activation methods on the microstructure of kaolin were analyzed through SEM and TEM, and the influence of organic acid activated metakaolin on macroscopic properties such as mechanical properties, drying shrinkage performance, electrical flux of concrete and microscopic pore structure was studied, and its microscopic mechanism of action was revealed. The results show that organic acid activation leads to the dissolution of some Si and Al in kaolin, causing damage to the edges and interlayer of the layered structure, resulting in a relatively rough microstructure. The calcination temperature decreases by 160 ℃ and the specific surface area increases. Adding organic acid activated metakaolin to concrete can improve the comprehensive performance of concrete by enhancing the compactness of concrete. The compressive strength at 28 d increases by 23.2%, and the 28 d electric flux is reduced by 51.8%, which is superior to metakaolin and silica fume.

Key words: kaolin, organic acid activation, organic acid, concrete, macro performance, microstructure

中图分类号:

TU526

李安, 王彦军, 张志杰, 范志宏. 有机酸活化偏高岭土混凝土性能研究[J]. 硅酸盐通报, 2024, 43(7): 2434-2440.

LI An, WANG Yanjun, ZHANG Zhijie, FAN Zhihong. Properties of Organic Acid Activated Metakaolin Concrete[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(7): 2434-2440.

参考文献

[1] 任超, 倪文, 王勇华. 湿选钢渣尾泥的机械活化及其在混凝土中的应用[J]. 混凝土, 2023(2): 114-118.
REN C, NI W, WANG Y H. Mechanical activation of wet sorted steel slag mud and its application in concrete[J]. Concrete, 2023(2): 114-118 (in Chinese).
[2] 张涛, 陈铁军, 陈永亮, 等. 机械活化和不锈钢渣掺量对矿渣胶凝材料性能的影响[J]. 硅酸盐通报, 2022, 41(2): 553-561.
ZHANG T, CHEN T J, CHEN Y L, et al. Effects of mechanical activation and stainless steel slag content on properties of slag cementitious materials[J]. Bulletin of the Chinese Ceramic Society, 2022, 41(2): 553-561 (in Chinese).
[3] 梁志鹏, 孙畅, 毕万利, 等. 高硅型铁尾矿机械活化效果及机理研究[J]. 硅酸盐通报, 2022, 41(8): 2810-2818.
LIANG Z P, SUN C, BI W L, et al. Mechanical activation of high silicon iron tailings and its mechanism[J]. Bulletin of the Chinese Ceramic Society, 2022, 41(8): 2810-2818 (in Chinese).
[4] 张晓林, 夏光华, 曹文. 机械活化强化二氧化硫脲漂白高岭土的试验研究[J]. 硅酸盐通报, 2016, 35(4): 1053-1056+1073.
ZHANG X L, XIA G H, CAO W. Bleaching kaolin with thiourea dioxide strengthened by mechanical activation[J]. Bulletin of the Chinese Ceramic Society, 2016, 35(4): 1053-1056+1073 (in Chinese).
[5] 李城林, 张超, 李润国, 等. 热活化中级铝硅比煤矸石对复合水泥性能及水化的影响[J]. 西南科技大学学报, 2023, 38(3): 8-15.
LI C L, ZHANG C, LI R G, et al. Mass ratio on the performance and hydration of compound cement[J]. Journal of Southwest University of Science and Technology, 2023, 38(3): 8-15 (in Chinese).
[6] 胡彪, 李先海, 晏祥政, 等. 热活化煤矸石粉对基体-骨料界面过渡区性能的影响[J]. 硅酸盐通报, 2023, 42(4): 1315-1322.
HU B, LI X H, YAN X Z, et al. Influence of thermal activated coal gangue powder on properties of interface transition zone between matrix and aggregate[J]. Bulletin of the Chinese Ceramic Society, 2023, 42(4): 1315-1322 (in Chinese).
[7] 杜晓伟, 刘辉, 李文举, 等. 掺加热活化油页岩半焦混凝土的耐久性[J]. 硅酸盐通报, 2023, 42(4): 1428-1436+1465.
DU X W, LIU H, LI W J, et al. Durability of heat activated oil shale semi-coke concrete[J]. Bulletin of the Chinese Ceramic Society, 2023, 42(4): 1428-1436+1465 (in Chinese).
[8] ZHANG L J, HE Y, LÜ P, et al. Comparison of microwave and conventional heating routes for kaolin thermal activation[J]. Journal of Central South University, 2020, 27(9): 2494-2506.
[9] 盖珂瑜, 王桂明, 孙涛, 等. 水洗高岭土活化特性及评价方法[J]. 硅酸盐通报, 2020, 39(11): 3601-3608.
GE K Y, WANG G M, SUN T, et al. Activation characteristics and evaluation of water-washed kaolin[J]. Bulletin of the Chinese Ceramic Society, 2020, 39(11): 3601-3608 (in Chinese).
[10] 盖珂瑜. 不同成因高岭土热活化特性比较研究[D]. 武汉: 武汉理工大学, 2019.
GE K Y. Comparative study on thermal activation characteristic of kaolin with different origins[D].Wuhan: Wuhan University of Technology, 2019 (in Chinese).
[11] CASTILLO L A, BARBOSA S E, MAIZA P, et al. Surface modifications of talcs. Effects of inorganic and organic acid treatments[J]. Journal of Materials Science, 2011, 46(8): 2578-2586.
[12] STEUDEL A, BATENBURG L F, FISCHER H R, et al. Alteration of swelling clay minerals by acid activation[J]. Applied Clay Science, 2009(44): 95-104.
[13] 欧延, 林敬东, 陈文瑞, 等. 酸改性高岭土的结构与性能的研究[J]. 厦门大学学报(自然科学版), 2004, 43(2): 272-274.
OU Y, LIN J D, CHEN W R, et al. A study on structure and characteristic of acid-modified kaolin[J]. Journal of Xiamen University (Natural Science), 2004, 43(2): 272-274 (in Chinese).
[14] 徐晓燕. 复合有机酸活化高岭土及其在陶瓷工业上的应用研究[D]. 广州: 华南理工大学, 2014.
XU X Y. Kaolinite modified by compound organic acids and its application in ceramic industry[D].Guangzhou: South China University of Technology, 2014 (in Chinese).
[15] 彭能. 有机酸活化高岭土及其在碱激发胶凝材料中的应用研究[D]. 武汉: 湖北大学, 2018.
PENG N. Application of organic acid to kaolin and its application in alkali activated cementitious materials[D].Wuhan: Hubei University, 2018 (in Chinese).
[16] LIN S M, YU Y L, ZHANG Z J, et al. The synergistic mechanisms of citric acid and oxalic acid on the rapid dissolution of kaolinite[J]. Applied Clay Science, 2020, 196: 105756.

有机酸活化偏高岭土混凝土性能研究

Properties of Organic Acid Activated Metakaolin Concrete

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]	张维东, 汪愿, 宋鹏飞, 王亚坤, 刘倩倩, 王旭昊. 高寒区混凝土多场耦合损伤劣化机制研究进展[J]. 硅酸盐通报, 2024, 43(7): 2317-2334.
[2]	孙嘉琦, 刘曦, 王传林, 苏芝棋, 鲁鑫, 麦靖敏. 硅烷偶联剂改性聚丙烯纤维水泥基复合材料的性能研究[J]. 硅酸盐通报, 2024, 43(7): 2355-2362.
[3]	吕阳, 范福龙, 吴远帅, 朱艳超, 张呈山, 李相国. 纳米二氧化硅负载丙烯酰胺型SAP内养护性能研究[J]. 硅酸盐通报, 2024, 43(7): 2393-2403.
[4]	李康, 高萌, 邹敏, 刘娟红, 谢永江. 碳酸盐环境对隧道混凝土性能和微观特征的影响[J]. 硅酸盐通报, 2024, 43(7): 2415-2426.
[5]	李相国, 魏武, 何超, 蔡礼雄, 吕阳, 但建明. 轻质高强蒸压加气混凝土的制备及性能研究[J]. 硅酸盐通报, 2024, 43(7): 2427-2433.
[6]	蒋健, 李传习, 邓帅, 司睹英胡, 杨赛. 含粗骨料超高性能混凝土静态稳定性研究[J]. 硅酸盐通报, 2024, 43(7): 2441-2450.
[7]	赵燕茹, 陈强, 王磊, 蔚文豪. 高温后混凝土单轴拉伸和压缩破坏规律及力学性能研究[J]. 硅酸盐通报, 2024, 43(7): 2451-2460.
[8]	王磊, 余涵, 章明明, 谷健, 卢家慧, 朱得祥. 钢-连续纤维复合筋珊瑚混凝土梁式拉拔粘结应力分布研究[J]. 硅酸盐通报, 2024, 43(7): 2461-2469.
[9]	潘晓凤, 曹建涛, 罗滔, 唐丽云. 早龄期钢纤维混凝土单轴压缩破坏前兆特征[J]. 硅酸盐通报, 2024, 43(7): 2470-2478.
[10]	王映祥, 彭波, 王健涛, 刘云鹏. 预置轻骨料混凝土中灌浆料与轻骨料的匹配机制研究[J]. 硅酸盐通报, 2024, 43(7): 2479-2489.
[11]	余金虎, 李强, 刘学应, 周曙光, 王超. 地质聚合物混凝土抗氯离子渗透性能研究进展[J]. 硅酸盐通报, 2024, 43(7): 2503-2513.
[12]	杨林, 杨建宇, 杨伟军. 新型复合激发锂渣基固化剂加固软土试验研究[J]. 硅酸盐通报, 2024, 43(7): 2556-2564.
[13]	刘扬, 王家理, 罗冬, 袁和平, 鲁乃唯, 王柏文. 硅灰及矿渣粉对大掺量粉煤灰砂浆力学性能的影响及机理研究[J]. 硅酸盐通报, 2024, 43(7): 2584-2594.
[14]	汪锦东, 罗梦婷, 鹿庆蕊, 王秋哲, 李栋伟. 干湿循环下稻草秸秆-聚乙烯醇增强粉质黏土强度特性与微观机理[J]. 硅酸盐通报, 2024, 43(7): 2630-2639.
[15]	张彪, 刘泓宇, 齐南, 王芬, 朱建锋, 李立, 马涛, 罗宏杰, 施佩. 氧化石墨烯对天然水硬性石灰水化及力学性能的影响[J]. 硅酸盐通报, 2024, 43(7): 2640-2648.