硅烷涂覆带裂缝混凝土氯离子扩散规律研究  

THE CHLORIDE ION DIFFUSION PROPERTIES IN CONCRETE WITH CRACKS USING SILANE-BASED MATERIALS

作　　者：董笠 王辰宇 郑妍[3] 陈晨[2] 李素超 DONG Li;WANG Chenyu;ZHENG Yan;CHEN Chen;Li Suchao(Department of Civil Engineering,Harbin Institute of Technology at Weihai,Shandong Weihai 264209,China;Ministry-of-Education Key Laboratory of Structural Dynamic Behavior and Control,School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China;College of Computer Science and Technology,Heilongjiang Institute of Technology,Harbin 150050,China)

机构地区：[1]哈尔滨工业大学(威海)海洋工程学院,山东威海264209 [2]哈尔滨工业大学结构工程灾变与控制教育部重点实验室,哈尔滨150090 [3]黑龙江工程学院计算机科学与技术学院,哈尔滨150050

出　　处：《低温建筑技术》2025年第2期86-90,99,共6页Low Temperature Architecture Technology

基　　金：山东省自然科学基金面上项目(ZR2020ME247)。

摘　　要：为研究硅烷基材料对带裂缝混凝土试件氯离子防护效用,文中通过浸泡试验研究了硅烷基材料涂覆前后混凝土试件不同深度处的氯离子含量变化。基于试验数据,采用COMSOL Multiphysics模拟分析硅烷基材料对带有单裂缝以及多裂缝的混凝土试件氯离子防护效果。结果表明硅烷基材料对带裂缝混凝土试件具有显著的抗氯离子侵蚀效果,裂缝深度和裂缝数量是影响氯离子防护效果的主要因素,裂缝宽度和裂缝间距的影响较小,研究可为带裂缝混凝土的耐久性提升提供依据和参考。To study the chloride ion protection effectiveness of silane-based materials on cracked concrete specimens,immersion tests were conducted to examine the variation in chloride ion content at different depths of concrete specimens before and after the application of silane-based materials.Based on the experimental data,COMSOL Multiphysics was used for a simulation analysis to evaluate the chloride ion protection performance of silane-based materials on concrete specimens with single and multiple cracks.The results show that silane-based materials have a significant effect on resisting chloride ion penetration in cracked concrete specimens.The crack depth and number of cracks are the primary factors influencing the chloride ion protection performance,while the crack width and spacing have a minor effect.This research provides a basis and reference for improving the durability of cracked concrete.

关 键 词：硅烷基材料 氯离子含量 抗侵蚀效果 混凝土裂缝 

分 类 号：TU528[建筑科学—建筑技术科学]