低碱水泥混凝土中FRP筋性能演化及FRP筋-基体界面黏结时变规律研究

doi:10.19936/j.cnki.2096-8000.20260328.015

复合材料科学与工程 ›› 2026, Vol. 0 ›› Issue (3): 129-136.DOI: 10.19936/j.cnki.2096-8000.20260328.015

低碱水泥混凝土中FRP筋性能演化及FRP筋-基体界面黏结时变规律研究

张文浩^1,2, 李冲², 章子峻², 石红星³, 张宁⁴, 李辉^4*

1.山东高速建设管理集团有限公司,济南 250013;
2.山东高速明董公路有限公司,潍坊 262216;
3.北京智华通科技有限公司,北京 100071;
4.河北工业大学土木与交通学院,天津 300401

收稿日期:2025-01-16 出版日期:2026-03-28 发布日期:2026-04-22
通讯作者: 李辉(1987—),男,博士,副教授,硕士生导师,研究方向为纤维混凝土、低碳水泥,li_h@hebut.edu.cn。
作者简介:张文浩(1982—),男,硕士,高级工程师,研究方向为低碳利废水泥。
基金资助:
河北省自然科学基金资助项目(E2021202037)

Performance evolution of FRP bars and time-dependent bond behavior at the FRP bar-matrix interface in low-alkalinity cement concrete

ZHANG Wenhao^1,2, LI Chong², ZHANG Zijun², SHI Hongxing³, ZHANG Ning⁴, LI Hui^4*

1. Shandong Hi-Speed Construction Management Group Co., Ltd., Jinan 250013, China;
2. Shandong Expressway Mingdong Highway Co., Ltd., Weifang 262216, China;
3. Beijing Zhihuatong Technology Co., Ltd., Beijing 100071, China;
4. School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China

Received:2025-01-16 Online:2026-03-28 Published:2026-04-22

摘要/Abstract

摘要： 为解决FRP筋在高碱度水泥混凝土中易发生碱腐蚀而性能劣化的问题,采用高贝利特硫铝酸盐水泥和矿渣硫铝酸盐水泥两种低碱水泥制备低碱水泥混凝土,明确两种低碱水泥混凝土在淡水和海水中的孔溶液pH值演化规律,并通过试验研究FRP筋在模拟孔溶液浸泡后的性能变化以及FRP筋-低碱水泥混凝土界面黏结强度时变规律。结果表明:与硅酸盐水泥混凝土相比,两种低碱水泥混凝土孔溶液pH值降低0.7~2.0,且海水环境有助于孔溶液pH值进一步降低;FRP筋在低碱模拟孔溶液中时,碱腐蚀速率显著降低。基于试验结果,利用Arrhenius退化模型进行推算,相较于在硅酸盐水泥混凝土模拟孔溶液中浸泡,FRP筋在低碱水泥混凝土模拟孔溶液中浸泡,寿命可提高10%~30%;海水环境促进低碱水泥混凝土强度发展并降低混凝土pH值。因此,在40 ℃人工海水中浸泡180 d后,FRP筋-低碱水泥混凝土界面黏结强度提高10%~30%,而同条件下的FRP筋-硅酸盐水泥混凝土界面黏结强度下降了10%~15%。综上所述,采用新型低碱水泥可有效提高FRP筋与混凝土界面黏结强度,并提升结构在海洋环境下的耐久性。

关键词: FRP筋, 高贝利特硫铝酸盐水泥, 矿渣硫铝酸盐水泥, 黏结强度, 碱腐蚀

Abstract: FRP bars are prone to alkali corrosion and performance degradation in high-alkalinity cement concrete. To address this issue, types of low-alkalinity cement(high-belite sulfoaluminate cement and slag sulfoaluminate cement) were proposed for the preparation of low-alkali cement concrete. The pH evolution of the pore solution in low-alkalinity concrete immersed in freshwater and seawater was measured. Experimental studies were conducted to examine the performance changes of FRP bars after immersion in simulated pore solutions, as well as the time-dependent evolution of the bond strength at the FRP bar-low-alkalinity cement concrete interface. The results indicate that the pore solution pH of the two low-alkalinity cement concretes is reduced by 0.7 to 2.0 compared to Portland cement concrete, with seawater exposure contributing to a further decrease in pH. The alkali corrosion rate of FRP bars is significantly lower in low-alkalinity simulated pore solutions. Based on experimental data and the Arrhenius degradation model, the estimated service life of FRP bars in low-alkalinity cement concrete simulated pore solutions increases by 10% to 30% compared to those in Portland cement concrete simulated pore solutions. Additionally, seawater exposure promotes strength development in low-alkalinity cement concrete while lowering the concrete pH. After 180 days of immersion in artificial seawater at 40 ℃, the bond strength at the FRP bar-low-alkalinity cement concrete interface increases by 10% to 30%, whereas that at the FRP bar-Portland cement concrete interface decreases by 10% to 15%. In conclusion, the adoption of novel low-alkalinity cement can significantly enhance the bond strength between FRP bars and concrete while improving the durability of structures in marine environments.

Key words: FRP bar, high-belite sulfoaluminate cement, slag sulfoaluminate cement, bond strength, alkali corrosion

中图分类号:

TB332

张文浩, 李冲, 章子峻, 石红星, 张宁, 李辉. 低碱水泥混凝土中FRP筋性能演化及FRP筋-基体界面黏结时变规律研究[J]. 复合材料科学与工程, 2026, 0(3): 129-136.

ZHANG Wenhao, LI Chong, ZHANG Zijun, SHI Hongxing, ZHANG Ning, LI Hui. Performance evolution of FRP bars and time-dependent bond behavior at the FRP bar-matrix interface in low-alkalinity cement concrete[J]. COMPOSITES SCIENCE AND ENGINEERING, 2026, 0(3): 129-136.

参考文献

[1] 沈惠军, 郑和晖, 张峰, 等. 新型BFRP布加固混凝土方柱轴压性能试验研究[J]. 复合材料科学与工程, 2023(9): 106-111.
[2] ZHANG K J, ZHANG Q T, XIAO J Z. Durability of FRP bars and FRP bar reinforced seawater sea sand concrete structures in marine environments[J]. Construction and Building Materials, 2022, 350: 128898.
[3] 张凯建, 王琳. FRP筋增强海水海砂混凝土材料与构件耐久性能综述[J]. 建筑科学与工程学报, 2024, 41(2): 17-30.
[4] 单波, 佟广权, 刘其元. CFRP筋与海水海砂混凝土黏结性能试验[J]. 建筑科学与工程学报, 2020, 37(5): 113-123.
[5] WANG L, MAO Y D, CHEN S, et al. Experimental research on bond performance between GFRP bars and the coral concrete[J]. Journal of Building Structures, 2018, 21(2): 286-292.
[6] AL-SALLOUM Y A, EL-GAMAL S, ALMUSALLAM T H, et al. Effect of harsh environmental conditions on the tensile properties of GFRP bars[J]. Composites Part B: Engineering, 2013, 45(1): 835-844.
[7] CHEN Y, DAVALOS J F, RAY I. Durability prediction for GFRP reinforcing bars using short-term data of accelerated aging tests[J]. Journal of Composites for Construction, 2006, 10(4): 279-286.
[8] SEN R, MULLINS G, SALEM T. Durability of E-glass/vinylester reinforcement in alkaline solution[J]. ACI Structural Journal, 2002, 99(3): 369-375.
[9] 梅塔, 蒙特罗. 混凝土微观结构、性能和材料[M]. 欧阳东, 译. 北京: 中国建筑工业出版社, 2016: 152-164.
[10] CHEN Y, DAVALOS J F, RAY I, et al. Accelerated aging tests for evaluations of durability performance of FRP reinforcing bars for concrete structures[J]. Composite Structures, 2007, 78(1): 101-111.
[11] DAVALOS J F, CHEN Y, RAY I. Effect of FRP bar degradation on interface bond with high strength concrete[J]. Cement and Concrete Composites, 2008, 30(8): 722-730.
[12] 褚天舒. 基于耐久性的FRP筋-混凝土构件粘结滑移本构关系研究[D]. 镇江: 江苏大学, 2018.
[13] 吴刚, 朱莹, 董志强, 等. 碱性环境中BFRP筋耐腐蚀性能试验研究[J]. 土木工程学报, 2014, 47(8): 32-41.
[14] MICELLI F, AIELLO M A. Residual tensile strength of dry and impregnated reinforcement fibers after exposure to alkaline environments[J]. Composites Part B: Engineering, 2019, 159: 490-501.
[15] 周锐, 朱德举. 玄武岩纤维复材筋海水海砂混凝土梁抗剪性能[J]. 铁道科学与工程学报, 2023, 20(9): 3396-3405.
[16] NIE S, ZHOU J, YANG F, et al. Analysis of theoretical carbon dioxide emissions from cement production: methodology and application[J]. Journal of Cleaner Production, 2022, 334: 130270.
[17] 廖宜顺, 桂雨, 沈晴, 等. 硫铝酸盐水泥水化反应的表观活化能计算[J]. 建筑材料学报, 2018, 21(6): 864-870.
[18] 刘泽平, 王传林, 张宇轩, 等. 海水和矿物掺合料对硫铝酸盐水泥砂浆性能的影响[J]. 硅酸盐通报, 2022, 41(4): 1245-1255.
[19] 刘猛, 夏瑞杰, 刘勇, 等. 高贝利特硫铝酸盐水泥的矿物组成及其影响因素[J]. 材料科学与工程学报, 2022, 40(5): 829-834.
[20] 孙正宁. 高抗折低热矿渣硫铝酸盐水泥水化硬化机理[D]. 天津: 河北工业大学, 2019.
[21] ASTM. Standard practice for the preparation of substitute ocean water: ASTM D1141-98[S]. West Conshohocken: ASTM, 2003.
[22] ROST P, NEUBAUER J, GOETZ-NEUNHOEFFER F. The influence of low calcium sulfate contents on early calcium aluminate cement-calcite hydration kinetics and pore solution chemistry[J]. Cement and Concrete Research, 2024, 184: 107615.
[23] 张爱, 葛勇. 溶剂交换对水泥基材料微结构的影响[J]. 硅酸盐学报, 2023, 51(8): 2098-2107.
[24] ACI. Guide test methods for fiber reinforced polymers (FRPs) for reinforcing or strengthening concrete structures: ACI 440.3R-04[S]. Farmington Hills: ACI, 2004.
[25] 郑娟. 海水对新型硫铝酸盐水泥力学性能的影响及机理研究[D]. 天津: 河北工业大学, 2021.

低碱水泥混凝土中FRP筋性能演化及FRP筋-基体界面黏结时变规律研究

Performance evolution of FRP bars and time-dependent bond behavior at the FRP bar-matrix interface in low-alkalinity cement concrete

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