Study on Corrosion Resistance Coefficient and Micro-mechanism of Concrete Under Sulphate Environment Based on Fractal Dimension
YANG Junzhao1, ZHANG Rongling1,2,*, XUE Yanjin1,2, WANG Xiaoping1, DOU Xiaozheng3, SONG Yi1
1 College of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China 2 Bridge Engineering National Local Joint Engineering Laboratory of Disaster Prevention and Contral Technology, Lanzhou Jiaotong University, Lanzhou 730070, China 3 China Railway Construction Bridge Engineering Bureau Group Co.,Ltd., Wuhan 430050, China
Abstract: In order to study the effect of sulphate environment on the performance of concrete, indoor sulphate corrosion test which simulated the on-site engineering corrosive environment in Xinjiang Taitama Lake area was carried out. From the perspective of concrete macroscopic corrosion resistance coefficient, microscopic pore structure and the evolution of corrosion products with the erosion time and other perspectives, and the pore structure of concrete fractal dimension calculation, analysed the relationship between fractal dimension, porosity and corrosion resistance coefficient. The results show that with the growth of corrosion time, the corrosion resistance coefficient is first enhanced and then weakened;the total porosity first decreases and then increases, the harmful pore and multi-harmful pore ratio first reduces and then increases. The porosity and corrosion resistance coefficient have a linear relationship. Fractal dimension is related to the pore size, at the pre-erosion, the pore structure of concrete is refined, the compactness of the concrete increases, the distribution of pore space is complex, fractal dimensions increase. When the expansion effect of calcium alumina, gypsum and other expansive corrosion products occurs, the internal pore structure of concrete is coarsened, the pore distribution is simple, and the fractal dimension decreases. Through the analysis of XRD erosion products, it is found that the expansion of calcium alumina and gypsum is the main reason for the deterioration of the concrete, and calcium alumina erosion mainly occurs in the early stage of erosion, and gypsum erosion mainly occurs in the late stage of erosion. The research results can provide some references for the corrosion resistance of concrete in the salty soil area of Northwest China.
杨军兆, 张戎令, 薛彦瑾, 王小平, 窦晓峥, 宋毅. 基于分形维数的硫酸盐环境下混凝土抗蚀系数及微观机理研究[J]. 材料导报, 2025, 39(7): 24020033-7.
YANG Junzhao, ZHANG Rongling, XUE Yanjin, WANG Xiaoping, DOU Xiaozheng, SONG Yi. Study on Corrosion Resistance Coefficient and Micro-mechanism of Concrete Under Sulphate Environment Based on Fractal Dimension. Materials Reports, 2025, 39(7): 24020033-7.
1 Yu H F, Sun W, Wu W F, et al. Journal of the Chinese Ceramic Society, 2003, 31(8), 765 (in Chinese). 余红发, 孙伟, 武卫锋, 等. 硅酸盐学报, 2003, 31(8), 765. 2 Sahmaran M, Erdem T K, Yaman I O. Construction and Building Materials, 2007, 21(8), 1771. 3 Bassuoni M T, Nehdi M L. Cement and Concrete Research, 2009, 39(3), 206. 4 Müllauer W, Beddoe R E, Heinz D. Cement and Concrete Research, 2013, 52(10), 208. 5 Jin Z Q, Sun W, Zhang Y S, et al. Journal of the Chinese Ceramic Society, 2006, 34(5), 630 (in Chinese). 金祖权, 孙伟, 张云升, 等. 硅酸盐学报, 2006, 34(5), 630. 6 Gao R D, Zhao S B, Li Q B, et al. China Civil Engineering Journal, 2010, 43(2), 48 (in Chinese). 高润东, 赵顺波, 李庆斌, 等. 土木工程学报, 2010, 43(2), 48. 7 Zhang X B, Zhang R L, Ning G X, et al. Journal of Railway Science and Engineering, 2021, 18(6), 1471 (in Chinese). 张新博, 张戎令, 宁贵霞, 等. 铁道科学与工程学报, 2021, 18(6), 1471. 8 Jiang L, Niu D T. Construction and Building Materials, 2016, 117(8), 88. 9 Gu Y S, Martin R P, Metalssi O O, et al. Cement and Concrete Research, 2019, 123, 105766. 10 Chen Y, Liu P, Yu Z W. Construction and Building Materials, 2020, 260, 119951. 11 Liu J P, Liu Y J, Shi L, et al. Journal of Building Materials, 2016, 19(6), 993 (in Chinese). 刘加平, 刘玉静, 石亮, 等. 建筑材料学报, 2016, 19(6), 993. 12 Len F G, Feng N Q, Xing F. Concrete, 2000(8), 6 (in Chinese). 冷发光, 冯乃谦, 刑锋. 混凝土, 2000(8), 6. 13 Qiao H X, He Z M, Liu C L. Journal of Harbin Institute of Technology, 2008, 40(8), 1302 (in Chinese). 乔宏霞, 何忠茂, 刘翠兰. 哈尔滨工业大学学报, 2008, 40(8), 1302. 14 Yuan L D, Niu D T, Jiang L, et al. Bulletin of the Chinese Ceramic Society, 2013, 32(6), 1171(in Chinese). 苑立冬, 牛荻涛, 姜磊, 等. 硅酸盐通报, 2013, 32(6), 1171. 15 Zhao Q X, Li D H, Yan G L, et al. Journal of the Chinese Ceramic Society, 2012, 40(2), 217(in Chinese). 赵庆新, 李东华, 闫国亮, 等. 硅酸盐学报, 2012, 40(2), 217. 16 Liu J H, Zhao L, Ji H G. Chinese Journal of Engineering, 2017, 39(8), 1278 (in Chinese). 刘娟红, 赵力, 纪洪广. 工程科学学报, 2017, 39(8), 1278. 17 Xue H J, Zheng J T, Zou C X, et al. Building Structure, 2022, 52(8), 112(in Chinese). 薛慧君, 郑建庭, 邹春霞, 等. 建筑结构, 2022, 52(8), 112. 18 Shi D S, Huai B D, Ma Z, et al. Bulletin of the Chinese Ceramic Society, 2023, 42(1), 248(in Chinese). 石东升, 淮炳栋, 马政, 等. 硅酸盐通报, 2023, 42(1), 248. 19 Jin S S, Zheng G P, Yu J. Construction and Building Materials, 2020, 257, 119434 . 20 Gao S, Ji Y, Qin Z W, et al. Construction and Building Materials, 2020, 358, 129451. 21 Sun H R, Zou C X, Xue H J, et al. Journal of Building Materials, 2022, 25(2), 124 (in Chinese). 孙浩然, 邹春霞, 薛慧君, 等. 建筑材料学报, 2022, 25(2), 124. 22 Zhu Z D, Huo W W, Sun H, et al. Journal of Building Engineering, 2023, 67, 106011. 23 Zhu C, Liu X G, Liu C, et al. Construction and Building Materials, 2022, 353, 129101. 24 Tang L Y, Huang T, Wang W B, et al. Journal of Central South University (Science and Technology), 2023, 54(5), 1954 (in Chinese). 唐丽云, 黄涛, 汪卫兵, 等. 中南大学学报(自然科学版), 2023, 54(5), 1954. 25 Ministry of Housing and Urban-Rural Development of the People's Republic of China. Standard for test methods of concrete physical and mechanical properties:GB/T 50081-2019, China Architecture & Building Press, China, 2019(in Chinese). 中华人民共和国住房与城乡建设部. 混凝土物理力学性能试验方法标准:GB/T 50081-2019, 中国建筑工业出版社, 2019. 26 Ministry of Housing and Urban-Rural Development of the People's Republic of China. Standard for test methods of long-term performance and durability of ordinary concrete:GB/T 50082-2009, China Architecture & Building Press, China, 2009(in Chinese). 中华人民共和国住房与城乡建设部. 普通混凝土长期性能和耐久性能试验方法标准:GB/T 50082-2009, 中国建筑工业出版社, 2009. 27 Wu Z W, Lian H Z. High performance concrete, China Railway Press, China, 1999 (in Chinese). 吴中伟, 廉慧珍. 高性能混凝土, 中国铁道出版社, 1999. 28 Zhang C M, Chen Z B, Zhang Z S. Journal of Oil and Gas Technology, 2007, 29(4), 80(in Chinese). 张超谟, 陈振标, 张占松. 石油天然气学报, 2007, 29(4), 80.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2025, Vol. 39 
