| 硫酸盐溶液对CFRP-混凝土黏结性能的影响 |
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| 引用本文： | 李伟文,邢锋,隋莉莉,姜文平,李小乔.硫酸盐溶液对CFRP-混凝土黏结性能的影响[J].施工技术,2010,39(4). |
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| 作者姓名： | 李伟文 邢锋 隋莉莉 姜文平 李小乔 |
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| 作者单位： | 深圳大学深圳市土木工程耐久性重点实验室,广东深圳,518060 |
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| 基金项目： | 国家杰出青年科学基金资助项目，国家自然科学基金资助项目，深圳市科技计划资助项目 |
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| 摘 要： | 随着CFRP外贴加固混凝土结构技术的应用,CFRP-混凝土黏结界面的耐久性问题也突显出来.为了研究和分析CFRP-混凝土在恶劣条件下的黏结性能,进行了硫酸钠溶液的浸泡及干湿循环试验,并考察CFRP-混凝土拉伸剪切强度随劣化时间的变化特性.研究表明,硫酸钠溶液浸泡对CFRP-混凝土的黏结强度影响不大;但混凝土在受到硫酸盐溶液浸泡后再粘贴CFRP片材,其黏结强度比未经劣化的CFRP-混凝土的黏结强度均有不同程度降低;硫酸盐溶液干湿循环对CFRP-混凝土黏结强度影响较大.
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| 关 键 词： | CFRP-混凝土 黏结性能 耐久性 硫酸盐溶液 干湿循环 |
Influence of Sulfate Solution on CFRP-concrete Interface Bonding Strength |
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| Li Weiwen,Xing Feng,Sui Lili,Jiang Wenping,Li Xiaoqiao.Influence of Sulfate Solution on CFRP-concrete Interface Bonding Strength[J].Construction Technology,2010,39(4). |
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| Authors: | Li Weiwen Xing Feng Sui Lili Jiang Wenping Li Xiaoqiao |
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| Affiliation: | Li Weiwen,Xing Feng,Sui Lili,Jiang Wenping,Li Xiaoqiao (Shenzhen Key Laboratory for Civil Engineering Durability,Shenzhen University,Shenzhen,Guangdong 518060,China) |
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| Abstract: | Along with application of concrete members externally bonded CFRP composites,durability problems of interface between CFRP and concrete become more prominent. In order to investigate bonding performances of the interface under adverse conditions,30 specimens were accelerated aged with immersing sodium sulfate solution and dry-wet cycle test,respectively. The shear strength capacities of interface with time increasing were studied. The experimental results indicate that CFRP-concrete bonding strength has a l... |
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| Keywords: | CFRP concrete bonding performance durability sulfate solution dry-wet cycle test |
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