杂散电流作用下混杂纤维混凝土SO<sub>4</sub><sup>2-</sup>迁移与反应规律研究

doi:10.11896/cldb.24060080

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Abstract To explore the effect of stray current and sulfate on the durability of hybrid fiber concrete, the damage mechanism, SO₄^2- migration and reaction rule of basalt/polypropylene fiber reinforced concrete under the action of stray current and sulfate were studied in this work by testing sulfate ions and erosion products. The results show that:(ⅰ) With the increase of stray current density, the SO₄^2- concentration in hybrid fiber concrete also increases. Compared with the SO₄^2- concentration of concrete under the current density of 1.2 mA/dm², the corresponding values of 2.4 mA/dm² and 4.8 mA/dm² increase by 64.5% and 133.1%, respectively. (ⅱ) The sulfate resistances of hybrid fiber concrete specimens can be sequenced as NC-30＜BPC-30-0.2＜BC-30-0.1＜PC-30-0.1≈BPC-30-0.1＜BC-40-0.1＜BC-50-0.1. The optimal content of basalt and polypropylene fiber is 0.1vol%, and the “negative mixing effect” will occur when fiber content exceeds this limit value. (ⅲ) With the migration of OH^- transported by stray current, the internal pH value of concrete decreases and the content of Ca(OH)₂ decreases. Furthermore, according to Fick's second diffusion law, this work tried to propose the influence coefficient of stray current on SO₄^2- reaction quantity, and to establish a SO₄^2- diffusion coefficient model of hybrid fiber concrete. By introducing fiber influence coefficient and geometric bending coefficient, the SO₄^2- diffusion equation of hybrid fiber concrete considering the coupling of stray current and sulfate could be established.

Key words： hybrid fiber stray current damage mechanism SO₄^2- migration SO₄^2- reaction

Published: 25 September 2025 Online: 2025-09-11

CLC number:

TU528

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	Articles by authors
	ZHANG Lu
	XU Zhiming
	WEN Bo
	NIU Ditao
	LI Hui
	LIANG Haonan
	JI Zhiyuan

Cite this article:

ZHANG Lu,XU Zhiming,WEN Bo, et al. Research on SO₄^2- Migration and Reaction of Hybrid Fiber Concrete Under Stray Current[J]. Materials Reports, 2025, 39(18): 24060080-8.

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https://www.mater-rep.com/EN/10.11896/cldb.24060080 OR https://www.mater-rep.com/EN/Y2025/V39/I18/24060080

1 Susanto A, Koleva D A, Breugel K V, et al. Journal of Advanced Concrete Technology, 2017, 15(6), 244.
2 Fang Z, Wang C, Hu H, et al. Construction and Building Materials, 2022, 359, 129489.
3 Fang Z, Li Z, Zhou Y, et al. Journal of Building Engineering, 2024, 87, 108996.
4 Luo Y, Wang C, Peng X, et al. Journal of Building Materials, 2016, 19(6), 998 (in Chinese).
罗遥凌, 王冲, 彭小芹, 等. 建筑材料学报, 2016, 19(6), 998.
5 Huang Q, Liu H, Wang Q, et al. Developments in the Built Environment, 2024, 17, 100303.
6 Fang Z, Wang C, Luo Y, Journal of Chinese Ceramic Society, 2018, 46(8), 1095 (in Chinese).
方正, 王冲, 罗遥凌. 硅酸盐学报, 2018, 46(8), 1095.
7 Samson E, Marchand J. Computers and Structures, 2007, 85(23-24), 1740.
8 Fang Z, Li Z, Zhou Y, et al. Construction and Building Materials, 2023, 408, 133723.
9 Ahmed S, Maalej M. Construction and Building Materials, 2009, 23(1), 96.
10 Li D, Niu D, Fu Q, et al. Cement and Concrete Composites, 2020, 109, 103555.
11 Niu D, Luo Y, Su L, et al. Materials Reports, 2022, 36(13), 115 (in Chinese).
牛荻涛, 罗扬, 苏丽, 等. 材料导报, 2022, 36(13), 115.
12 Wang Z, Zhao K, Li Z, et al. Chemical Engineering Transactions, 2017, 62, 961.
13 Behfarnia K, Farshadfar O. Construction and Building Materials, 2013, 38, 64.
14 Mardani-Aghabaglou A, Özen S, Altun M G. Journal of Green Building, 2018, 13(2), 20.
15 Li Y, Zhang S. Journal of Northeastern University (Natural Science Edition), 2016, 37(6), 895 (in Chinese).
李艺, 张爽. 东北大学学报(自然科学版), 2016, 37(6), 895.
16 He R, Tan Y, Wang S, et al. Bulletin of the Chinese Ceramic Society, 2018, 37, 232.
17 Sun D, Wang H, Liu K, et al. Materials Reports, 2020, 34(14), 14079 (in Chinese).
孙道胜, 王辉, 刘开伟, 等. 材料导报, 2020, 34(14), 14079.
18 Jiang J, Zheng H, Sun G, et al. Journal of Building Materials, 2023, 26(10), 1047 (in Chinese).
蒋金洋, 郑皓睿, 孙国文, 等. 建筑材料学报, 2023, 26(10), 1047.
19 Yin G, Shan Z, Wen X, et al. Materials Reports, 2024, 38(19), 102 (in Chinese).
殷光吉, 单紫琪, 温小栋, 等. 材料导报, 2024, 38(19), 102.
20 Romualdi J P, Batson G B. Journal of the Engineering Mechanics Division, 1963, 89(3), 147.
21 Neithalath N, Jain J. Cement and Concrete Research, 2010, 40(7), 1041.
22 Yang P, Sant G, Neithalath N. Cement and Concrete Composites, 2017, 82, 80.
23 Samson E, Marchand J, Robert J L, et al. International Journal for Numerical Methods in Engineering, 1999, 46(12), 2043.
24 Zuo X, Sun W, Cheng Y, et al. Computers and Concrete, 2010, 7(5), 421.