老旧电缆隧道玄武岩纤维棒增强超高性能水泥基修复材料的力学及微观特征

doi:10.16552/j.cnki.issn1001-1625.2025.0401

摘要/Abstract

摘要： 电缆隧道所处地下环境复杂,隧道混凝土支护结构受腐蚀而性能劣化严重。然而传统修复材料的性能不足,常导致电缆隧道的反复裂损和渗水,这种劣化现象在老旧电缆隧道中特为尤甚。传统镀铜微丝钢纤维的耐高温、抗腐蚀性能较差,难以适应复杂的地下环境。本文采用玄武岩纤维棒(BFB)代替镀铜微丝钢纤维,设计玄武岩纤维棒增强超高性能水泥基(BFB-UHPCC)修复材料,通过力学试验和CT技术研究其性能。结果表明,掺入BFB可以显著提升材料的力学性能,蒸汽养护下抗压强度达123.7 MPa,抗折强度达20.0 MPa,掺加1.5%(体积分数)BFB结合养护剂养护时试样韧性最佳。尽管BFB体积掺量的增加会略微提高孔隙率和孔隙数量,但BFB的优异性能仍能大幅改善材料的力学性能,此修复材料适用于复杂地下环境中的混凝土修复。

关键词: 玄武岩纤维棒, 电缆隧道, 韧性, 微观结构, 孔隙结构, 混凝土支护结构

Abstract: The underground environment where cable tunnels are located is complex, leading to severe performance degradation of the tunnel's concrete support structure due to corrosion. However, the insufficient performance of traditional repair materials often results in repeated cracking and water leakage in cable tunnels, and this degradation phenomenon is particularly pronounced in aged cable tunnels. Additionally, traditional copper-plated micro-fine steel fibers exhibit poor high-temperature resistance and corrosion resistance, making them unsuitable for complex underground environments. Therefore, this study adopted basalt fiber bar (BFB) to replace copper-plated micro-fine steel fibers and designed a basalt fiber bar reinforced ultra-high performance cementitious composite (BFB-UHPCC) repair material. The material's performance was investigated through mechanical tests and CT technology. The results show that the incorporation of BFB significantly enhances the material's mechanical properties, with compressive strength reaching 123.7 MPa and flexural strength reaching 20.0 MPa under steam curing. The combination of 1.5% (volume fraction) BFB and curing agent treatment yields the best toughness. Although an increase in BFB volume fraction slightly raises porosity and the number of pores, the excellent performance of BFB still greatly improves the material's mechanical properties, making it suitable for repair in complex underground environments.

Key words: basalt fiber bar, cable tunnel, toughness, microstructure, pore structure, concrete support structure

中图分类号:

TU528

薛强, 郑天宇, 蔡晓宇, 刘守全, 詹金科, 崔圣爱. 老旧电缆隧道玄武岩纤维棒增强超高性能水泥基修复材料的力学及微观特征[J]. 硅酸盐通报, 2025, 44(10): 3562-3572.

XUE Qiang, ZHENG Tianyu, CAI Xiaoyu, LIU Shouquan, ZHAN Jinke, CUI Sheng'ai. Mechanical and Microstructural Characteristics of Basalt Fiber Bar Reinforced Ultra-High Performance Cementitious Composite Repair Materials for Aged Cable Tunnels[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2025, 44(10): 3562-3572.

参考文献

[1] 王泽朋. 电缆隧道裂损机理与分级方法研究[D]. 石家庄: 石家庄铁道大学, 2023.
WANG Z P. Research on the mechanism and analysis method of cable tunnel fracture damage[D]. Shijiazhuang: Shijiazhuang Tiedao University, 2023 (in Chinese).
[2] 谭春. 老旧电缆隧道安全性变形监测系统设计及应用[D]. 成都: 西南交通大学, 2021.
TAN C. Design and application of safe tydeformation monitoring system for old cable tunnel[D]. Chengdu: Southwest Jiaotong University, 2021 (in Chinese).
[3] DE LARRARD F, SEDRAN T. Optimization of ultra-high-performance concrete by the use of a packing model[J]. Cement and Concrete Research, 1994, 24(6): 997-1009.
[4] 张红, 徐洁. 中国超高性能混凝土潮起湘江: 专访“中国混凝土与水泥制品行业杰出工程师团队” 湖南大学超高性能混凝土材料与结构创新应用团队[J]. 混凝土世界, 2024(8): 4-10.
ZHANG H, XU J. The tide wave of China ultra-high performance concrete rising from the Xiangjiang River: interview with “outstanding engineer team in China concrete and cement products industry” Hunan University ultra-high performance concrete materials and structural I[J]. China Concrete, 2024(8): 4-10 (in Chinese).
[5] 章燚. 超高性能混凝土性能及其应用研究综述[J]. 居舍, 2025(2): 38-40+99.
ZHANG Y. Review on properties and application of ultra-high performance concrete[J]. Jushe, 2025(2): 38-40+99 (in Chinese).
[6] 周善露. 超高性能混凝土在建筑物结构中力学性能应用分析[J]. 江苏建材, 2024(6): 7-8.
ZHOU S L. Application analysis of mechanical properties of ultra-high performance concrete in building structures[J]. Jiangsu Building Materials, 2024(6): 7-8 (in Chinese).
[7] 曾慧姣. 组合桥面铺装材料超高韧性混凝土设计及优化研究[D]. 成都: 西南交通大学, 2023.
ZENG H J. Study on design and optimization of ultra-high toughness concrete for composite bridge deck pavement material[D]. Chengdu: Southwest Jiaotong University, 2023 (in Chinese).
[8] 曾浩楠. 玄武岩纤维UHPC修复加固性能研究[D]. 成都: 西南交通大学, 2022.
ZENG H N. Study on repair and reinforcement performance of basalt fiber UHPC[D]. Chengdu: Southwest Jiaotong University, 2022 (in Chinese).
[9] 陈盼鑫. 基于高性能混凝土材料的修复桥墩抗震性能研究[D]. 石家庄: 石家庄铁道大学, 2024.
CHEN P X. Study on seismic performance of repaired piers based on high performance concrete materials[D]. Shijiazhuang: Shijiazhuang Tiedao University, 2024 (in Chinese).
[10] 金清平, 陈川, 黄桥连, 等. 超高性能混凝土中纤维作用效应研究综述[J]. 水利与建筑工程学报, 2024, 22(2): 55-65.
JIN Q P, CHEN C, HUANG Q L, et al. Review on the effects of fiber action in ultra high-performance concrete[J]. Journal of Water Resources and Architectural Engineering, 2024, 22(2): 55-65 (in Chinese).
[11] 王辉, 万云辉, 漆天奇, 等. 钢纤维锈蚀对混凝土力学性能和耐久性影响研究进展[J/OL]. 中国农村水利水电, 2024: 1-22 (2024-12-24) [2025-02-05]. http://kns.cnki.net/kcms/detail/42.1419.TV.20241224.1428.003.html.
WANG H, WAN Y H, QI T Q, et al. Research progress on the influence of steel fiber corrosion on mechanical properties and durability of concrete[J/OL]. China Rural Water and Hydropower, 2024: 1-22 (2024-12-24) [2025-02-05]. http://kns.cnki.net/kcms/detail/42.1419.TV.20241224.1428.003.html (in Chinese).
[12] 吴小波. 玄武岩纤维复合材料波纹板力学性能及其套衬结构性能分析[J]. 河海大学学报(自然科学版), 2025, 53(1): 87-94.
WU X B. Mechanical properties of basalt fiber composite corrugated plates and analysis of their lining structure performance[J]. Journal of Hohai University (Natural Sciences), 2025, 53(1): 87-94 (in Chinese).
[13] 黄诗宇, 李志强, 庄思杰, 等. 玄武岩纤维分散性探究及其纸基复合材料的制备和应用[J/OL]. 复合材料学报, 2025: 1-9 (2025-01-15) [2025-02-05]. https://doi.org/10.13801/j.cnki.fhclxb.20250115.002.
HUANG S Y, LI Z Q, ZHUANG S J, et al. Study on dispersion of basalt fiber and preparation and application of its paper-based composites[J/OL]. Acta Materiae Compositae Sinica, 2025: 1-9 (2025-01-15) [2025-02-05]. https://doi.org/10.13801/j.cnki.fhclxb.20250115.002 (in Chinese).
[14] 姚天晨. 玄武岩纤维混凝土力学性能试验及机器学习预测模型研究[D]. 重庆: 重庆交通大学, 2024.
YAO T C. Study on mechanical properties test and machine learning prediction model of basalt fiber reinforced concrete[D]. Chongqing: Chongqing Jiaotong University, 2024 (in Chinese).
[15] 冉秋硕, 徐泽辉, 齐文超, 等. 高温后钢-玄武岩混杂纤维混凝土动态力学性能研究[J]. 硅酸盐通报, 2025, 44(1): 69-80.
RAN Q S, XU Z H, QI W C, et al. Dynamic mechanical properties of steel-basalt hybrid fiber concrete after high temperature[J]. Bulletin of the Chinese Ceramic Society, 2025, 44(1): 69-80 (in Chinese).
[16] 田鹏刚, 王振山, 王锴, 等. 玄武岩纤维复掺改性混凝土耐硫酸盐侵蚀能力研究[J]. 建筑结构, 2025, 55(3): 64-69+56.
TIAN P G, WANG Z S, WANG K, et al. Study on sulphate erosion resistance of basalt fibre compound-modified concrete[J]. Building Structure, 2025, 55(3): 64-69+56 (in Chinese).
[17] FEDIUK R, MAKAROVA N, KOZIN A, et al. Nanomodified basalt fiber cement composite with bottom ash[J]. Journal of Composites Science, 2023, 7(3): 96.
[18] 覃书豪. 新型玄武岩纤维混凝土可行性试验研究[J]. 中国水运, 2024(22): 146-148.
QIN S H. Experimental study on feasibility of new basalt fiber reinforced concrete[J]. China Water Transport, 2024(22): 146-148 (in Chinese).
[19] 姜国新, 赵川, 郭俊利, 等. 玄武岩纤维水泥胶砂力学性能试验研究[J]. 水力发电, 2024, 50(2): 108-113.
JIANG G X, ZHAO C, GUO J L, et al. Experimental study on mechanical properties of basalt fiber cement mortar[J]. Water Power, 2024, 50(2): 108-113 (in Chinese).
[20] 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 of China. Method for testing the strength of cement mortar (ISO method): GB/T 17671—2021[S]. Beijing: Standards Press of China, 2021 (in Chinese).
[21] 韩建国, 阎培渝. 混凝土弯曲韧性测试和评价方法综述[J]. 混凝土世界, 2010(11): 42-45.
HAN J G, YAN P Y. Summary of testing and evaluating methods for flexural toughness of concrete[J]. China Concrete, 2010(11): 42-45 (in Chinese).
[22] 郑蓝迪. 蒸汽养护制度对混凝土力学及微观性能影响与养护制度优化研究[D]. 焦作: 河南理工大学, 2023.
ZHENG L D. Influence of steam curing regime on mechanical and microscopic properties of concrete and optimization of curing regime[D]. Jiaozuo: Henan Polytechnic University, 2023 (in Chinese).
[23] 郭子荣. 水泥混凝土和砂浆用玄武岩纤维性能研究[D]. 扬州: 扬州大学, 2024.
GUO Z R. Study on properties of basalt fiber for cement concrete and mortar[D]. Yangzhou: Yangzhou University, 2024 (in Chinese).
[24] 魏玲玲. 养护条件对超高性能混凝土微观结构及性能的影响[D]. 宁波: 宁波大学, 2020.
WEI L L. Effect of curing conditions on microstructure and properties of ultra-high performance concrete[D]. Ningbo: Ningbo University, 2020 (in Chinese).
[25] 曾旺. 混杂纤维对玄武岩机制砂超高性能混凝土性能影响研究[D]. 抚州: 东华理工大学, 2023.
ZENG W. Study on the influence of hybrid fiber on the performance of basalt machine-made sand ultra-high performance concrete[D]. Fuzhou: East China Institute of Technology, 2023 (in Chinese).
[26] 罗伊明. 混杂纤维增强超高性能混凝土的高温性能多尺度研究[D]. 杨凌: 西北农林科技大学, 2024.
LUO Y M. Multi-scale study on high-temperature performance of hybrid fiber reinforced ultra-high performance concrete[D]. Yangling: Northwest A & F University, 2024 (in Chinese).
[27] 王张翔, 金浪, 陈培鑫, 等. 基于CT和NMR技术的UHPC孔隙结构研究[J]. 材料导报, 2025, 39(5): 159-164.
WANG Z X, JIN L, CHEN P X, et al. Study on pore structure of UHPC based on CT and NMR techniques[J]. Materials Reports, 2025, 39(5): 159-164 (in Chinese).