基于接触电阻的水泥基材料裂缝自修复效果定量表征方法

硅酸盐通报 ›› 2023, Vol. 42 ›› Issue (6): 1950-1959.

所属专题：水泥混凝土

基于接触电阻的水泥基材料裂缝自修复效果定量表征方法

张旋¹, 傅昌皓¹, 詹其伟¹, 苏依林², 潘志宏¹

1.江苏科技大学土木工程与建筑学院,镇江 212114;
2.香港理工大学土木及环境工程学系,香港 999077

收稿日期:2023-02-21 修订日期:2023-02-21 出版日期:2023-06-15 发布日期:2023-06-25
作者简介:张旋(1993—),男,博士,讲师。主要从事自修复混凝土的研究。E-mail:x.zhang154@just.edu.cn
基金资助:
江苏省自然资源厅海洋科技创新专项(JSZRHYKJ202113);江苏省科技厅产学研项目(BY2021520);镇江市重点研发计划项目(SH2022018)

Quantitative Characterization Method of Crack Self-Healing Effect of Cement-Based Materials Based on Contact Resistance Theory

ZHANG Xuan¹, FU Changhao¹, ZHAN Qiwei¹, SU Yilin², PAN Zhihong¹

1. School of Civil Engineering and Architecture, Jiangsu University of Science and Technology, Zhenjiang 212114, China;
2. Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong 999077, China

Received:2023-02-21 Revised:2023-02-21 Online:2023-06-15 Published:2023-06-25

摘要/Abstract

摘要： 裂缝自修复效果是评价材料功能恢复水平的重要依据。为实现水泥基材料裂缝全断面修复效果的综合评定,开展了基于接触电阻理论的裂缝自修复评价方法研究,包括导电材料选择与优化、测试参数优化和计算方法推导等。结果表明,0.3%体积掺量碳纤维能有效降低水泥基材料电阻率,并同步改善力学性能。测量电压对电阻率测试结果无显著影响,电阻率随接触压力的增加逐渐降低。自修复过程即裂缝面接触形式变化的过程,同时伴随接触电阻的变化,从而可以构建接触电阻与自修复效果的定量计算公式。该方法仅与修复产物在裂缝面的分布数量有关,不受空间分布形式影响。研究结论为水泥基材料自修复效果定量表征提供借鉴。

关键词: 裂缝修复率, 电阻率, 接触电阻, 定量表征, 自修复混凝土, 产物分布

Abstract: The self-healing effect of cracks is an important basis for evaluating the level of functional recovery of materials. To realize the comprehensive evaluation of the full-section repair effect of cracks in cement-based materials, research on crack self-healing evaluation methods based on contact resistance theory had been carried out, including the selection and optimization of conductive materials, the optimization of test parameters, and the derivation of calculation methods. The results show that 0.3% volume dosage carbon fiber can effectively reduce the resistivity of cement-based materials and simultaneously improve mechanical properties. The measured voltage has no significant effect on the resistivity. The resistivity gradually decreases with the increase of contact pressure. The self-healing process of cracks is the process of changing the contact form of crack surface, which is also accompanied by changes in the contact resistance. According to this, a quantitative calculation formula for contact resistance and self-healing effect can be established. This method is only related to the accumulation of repair products on the crack surface, and is not affected by the spatial distribution of the products. The conclusions provide a reference for the quantitative characterization of the self-healing effect of cement-based materials.

Key words: crack repair rate, resistivity, contact resistance, quantitative characterization, self-healing concrete, product distribution

中图分类号:

TU528.44

张旋, 傅昌皓, 詹其伟, 苏依林, 潘志宏. 基于接触电阻的水泥基材料裂缝自修复效果定量表征方法[J]. 硅酸盐通报, 2023, 42(6): 1950-1959.

ZHANG Xuan, FU Changhao, ZHAN Qiwei, SU Yilin, PAN Zhihong. Quantitative Characterization Method of Crack Self-Healing Effect of Cement-Based Materials Based on Contact Resistance Theory[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2023, 42(6): 1950-1959.

参考文献

[1] SANGADJI S. Can self-healing mechanism helps concrete structures sustainable?[J]. Procedia Engineering, 2017, 171: 238-249.
[2] WU X T, HUANG H L, LIU H, et al. Artificial aggregates for self-healing of cement paste and chemical binding of aggressive ions from sea water[J]. Composites Part B: Engineering, 2020, 182: 107605.
[3] 韦建刚, 陈荣, 黄伟, 等. 静水压力下超高性能混凝土的抗氯离子渗透性能[J]. 硅酸盐通报, 2022, 41(8): 2706-2715+2747.
WEI J G, CHEN R, HUANG W, et al. Chloride penetration resistance of ultra-high performance concrete under hydrostatic pressure[J]. Bulletin of the Chinese Ceramic Society, 2022, 41(8): 2706-2715+2747 (in Chinese).
[4] KWON S J, NA U J, PARK S S, et al. Service life prediction of concrete wharves with early-aged crack: probabilistic approach for chloride diffusion[J]. Structural Safety, 2009, 31(1): 75-83.
[5] ZHANG W, ZHENG Q F, ASHOUR A, et al. Self-healing cement concrete composites for resilient infrastructures: a review[J]. Composites Part B: Engineering, 2020, 189: 107892.
[6] SNOECK D, STEUPERAERT S, VAN TITTELBOOM K, et al. Visualization of water penetration in cementitious materials with superabsorbent polymers by means of neutron radiography[J]. Cement and Concrete Research, 2012, 42(8): 1113-1121.
[7] WIKTOR V, JONKERS H M. Quantification of crack-healing in novel bacteria-based self-healing concrete[J]. Cement and Concrete Composites, 2011, 33(7): 763-770.
[8] MUHAMMAD N Z, SHAFAGHAT A, KEYVANFAR A, et al. Tests and methods of evaluating the self-healing efficiency of concrete: a review[J]. Construction and Building Materials, 2016, 112: 1123-1132.
[9] WANG A H, ZHAN Q W, FU C H, et al. Study on improving the self-repairing effect of cement-based materials by microbial mineralization coupled with inorganic minerals[J]. Case Studies in Construction Materials, 2022, 17: e01279.
[10] PARK B, CHOI Y C. Quantitative evaluation of crack self-healing in cement-based materials by absorption test[J]. Construction and Building Materials, 2018, 184: 1-10.
[11] NGUYEN T H, GHORBEL E, FARES H, et al. Bacterial self-healing of concrete and durability assessment[J]. Cement and Concrete Composites, 2019, 104: 103340.
[12] EDVARDSEN C. Water permeability and autogenous healing of cracks in concrete[M]//Innovation in concrete structures: Design and construction. Thomas Telford Publishing, 1999: 473-487.
[13] LING H, QIAN C X. Effects of self-healing cracks in bacterial concrete on the transmission of chloride during electromigration[J]. Construction and Building Materials, 2017, 144: 406-411.
[14] VIJAY K, MURMU M. Self-repairing of concrete cracks by using bacteria and basalt fiber[J]. SN Applied Sciences, 2019, 1(11): 1-10.
[15] WANG J Y, DEWANCKELE J, CNUDDE V, et al. X-ray computed tomography proof of bacterial-based self-healing in concrete[J]. Cement and Concrete Composites, 2014, 53: 289-304.
[16] LI E W, DU W, ZHUANG R H, et al. Preparation and characterization of electromagnetic-induced rupture microcapsules for self-repairing mortars[J]. Materials, 2022, 15(10): 3608.
[17] SUNDAY OBAYI C, SUNDAY NNAMCHI P. Exploits, advances and challenges in characterizing self-healing materials[J]. Advanced Functional Materials, 2020.
[18] VAN TITTELBOOM K, WANG J Y, ARAúJO M, et al. Comparison of different approaches for self-healing concrete in a large-scale lab test[J]. Construction and Building Materials, 2016, 107: 125-137.
[19] 国家市场监督管理总局, 国家标准化管理委员会. 水泥胶砂强度检验方法(ISO法): GB/T 17671—2021[S]. 北京: 中国标准出版社, 2021.
State Administration for Market Regulation, Standardization Administration. Test method of cement mortar strength (ISO method): GB/T 17671—2021[S]. Beijing: Standards Press of China, 2021 (in Chinese).
[20] DING Y, YANG Y, LIU R G, et al. Study on pressure sensitivity of smart polymer concrete based on steel slag[J]. Measurement, 2019, 140: 14-21.
[21] FU X, CHUNG D D L. Effects of water-cement ratio, curing age, silica fume, polymer admixtures, steel surface treatments and corrosion on the bond between concrete and steel reinforcing bar[J]. ACI Materials Journal, 1998, 95(6): 725-734.
[22] 郭凤仪, 陈忠华. 电接触理论及其应用技术[M]. 北京: 中国电力出版社, 2008: 10.
GUO F Y, CHEN Z H. Electrical contact theory and its application technology[M]. Beijing: China Electric Power Press, 2008: 10 (in Chinese).

基于接触电阻的水泥基材料裂缝自修复效果定量表征方法

Quantitative Characterization Method of Crack Self-Healing Effect of Cement-Based Materials Based on Contact Resistance Theory

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]	侯俊峰, 唐鹏程, 田少华, 张明哲, 吴集思. 层状Al₂O₃/EP复合材料的可控制备及性能研究[J]. 硅酸盐通报, 2023, 42(6): 2273-2280.
[2]	王嘉豪, 孔祥东, 陈建康. 严苛侵蚀作用对优化导电混凝土性能的影响[J]. 硅酸盐通报, 2023, 42(2): 463-470.
[3]	李思颖, 任子杰, 高惠民, 马骏辉, 杨云平, 吕阳, 李相国. 多源石墨固废制备电热板材配方试验研究[J]. 硅酸盐通报, 2023, 42(2): 637-643.
[4]	廖宜顺, 黄维峰, 李豪, 王思纯. 钢渣粉对硫铝酸盐水泥水化过程的影响及热力学模拟[J]. 硅酸盐通报, 2022, 41(7): 2376-2383.
[5]	董炫疆, 田英良, 赵志永, 吕锋. 钠钙玻璃熔体电阻率测量影响因素及边界条件研究[J]. 硅酸盐通报, 2022, 41(4): 1170-1176.
[6]	陈迎雪, 廖宜顺, 万方琪, 陈明洋, 余竞硕. 缓凝剂对氯氧镁水泥水化历程的影响[J]. 硅酸盐通报, 2022, 41(4): 1222-1228.
[7]	王思纯, 廖宜顺, 万世辉. 不同温度下矿渣对铝酸盐水泥早期水化行为的影响[J]. 硅酸盐通报, 2022, 41(4): 1343-1351.
[8]	李豪, 廖宜顺, 邓芳, 马丰, 董兴智. 磷建筑石膏对超硫酸盐水泥水化的影响[J]. 硅酸盐通报, 2022, 41(12): 4353-4360.
[9]	徐智东, 梅军鹏, 王智鑫, 廖宜顺, 廖国胜, 李海南. 纳米C-S-H对矿粉-水泥体系水化的影响[J]. 硅酸盐通报, 2022, 41(1): 13-19.
[10]	桂若铭, 廖宜顺, 黄浩然. 沸石粉对硫铝酸盐水泥水化行为的影响机理研究[J]. 硅酸盐通报, 2021, 40(7): 2138-2144.
[11]	王新古, 孙光华, 常锦涛, 李秀峰. 电缆用陶瓷化硅橡胶复合带性能的研究[J]. 硅酸盐通报, 2021, 40(6): 2096-2103.
[12]	李亚刚, 廖宜顺, 刘艳玲, 黄浩然. 超细矿渣粉和偏高岭土对硫铝酸盐水泥水化和强度的影响[J]. 硅酸盐通报, 2021, 40(5): 1586-1593.
[13]	林智扬;刘荣桂;汤灿;郝文峰;廖福星;袁天军. 包裹硅酸钠的微胶囊自修复混凝土在不同修复剂下的修复性能[J]. 硅酸盐通报, 2020, 39(4): 1092-1099.
[14]	李晓俊;张金华;郑刚;汪伟;倪江秀;王金龙. 石墨烯复合碳纳米管添加量对锂离子电池性能的影响[J]. 硅酸盐通报, 2020, 39(3): 896-900.
[15]	韩瑞杰;程忠庆;高屹;张元豪. 多层石墨烯/钢纤维复合砂浆导电性能研究[J]. 硅酸盐通报, 2020, 39(1): 34-40.