桩基工程玻璃钢包覆防护技术
Protection Technology of Piles Foundation Engineering Wrapped with Glass Fiber Reinforced Plastic Composites
摘 要
对国内采用玻璃钢包覆桩基础浪溅区及水位变动区作为耐海水腐蚀措施的海洋工程进行了现场调研；采用质量变化率试验，研究了海水向玻璃钢内部的扩散行为；并采用Fick第二扩散定律对玻璃钢包覆层的耐海水渗透寿命进行预测，建立了玻璃钢包覆层厚度与耐海水渗透寿命之间的关系。结果表明：海水向玻璃钢内部的扩散行为符合Fick第二扩散定律，2 mm厚的189不饱和聚酯玻璃钢的耐海水渗透寿命约为36 a，2 mm厚的MFE-2环氧乙烯基酯玻璃钢的耐海水渗透寿命可达60 a，玻璃钢包覆层表现出了优异的耐海水腐蚀性能。
玻璃钢
包覆
防腐蚀
piles foundation
glass fiber reinforced plastic (GFRP) composite
wrapping
anti-corrosion
Abstract
Field research was conducted to evaluate the national piles foundation engineering that adopted glass fiber reinforced plastic (GFRP) composite layer as anti-corrosion measures in splash and tide zones. Mass variation rate method was used to study the diffusion behavior of seawater to GFRP composites. The second Fick's law of diffusion was used to predict the service life of GFRP composite layer, and the relationship between service life and thickness of GFRP composite layer was built. Results showed that the diffusion behavior of seawater to GFRP composites conformed to the second Fick's law of diffusion. With the thickness of 2 mm, the life resistant to seawater penetration of 189 GFRP composites was about 36 years; while the MFE-2 epoxy vinyl ester based GFRP composites was about 60 years. The GFRP composites showed excellent anti-corrosion property to seawater.
中图分类号 TQ323.4+2 DOI 10.11973/fsyfh-201703016
所属栏目 应用技术
基金项目
收稿日期 2015/10/30
修改稿日期
网络出版日期
作者单位点击查看
联系人作者王成启(wcqtju@163.com)
引用该论文: NIE Ya-nan,CHEN Ke-wei,ZHANG Yue-ran,WANG Cheng-qi. Protection Technology of Piles Foundation Engineering Wrapped with Glass Fiber Reinforced Plastic Composites[J]. Corrosion & Protection, 2017, 38(3): 235
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参考文献
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【3】常安乐,宋诗哲. 模拟海洋环境浪花飞溅区的金属构筑物腐蚀监检测[J]. 中国腐蚀与防护学报,2012,32(3):247-250.
【4】汪冬冬,王成启,时蓓玲,等. 大管桩现场取样分析与耐久性研究[J]. 中国港湾建设,2008(1):39-43.
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【7】CLAUDE M R,MARK E G. Effect of glass fibres and environments on long-term durability of GFRP composites[J]. Appl Compos Mater,2010(17):121-135.
【8】AKUTAGAWA H,MIYATA Y,NAKANO H. Long-term exposure test for corrosion control of steel pipe piles[C]//Coast Technol Res Center Symp. Japan:Coast Technology Research Center,2006(6):79-82.
【9】陆旭峰. 东海大桥PHC管桩防腐蚀技术[C]//第十四届亚太腐蚀控制会议现代桥梁结构防腐蚀技术论坛文集. 上海:中国腐蚀与防护学会,2007:111-124.
【10】周杰. 玻璃钢工作艇二十年实样性能分析[J]. 玻璃钢/复合材料,1985(6):29-33.
【11】HUANG G. Behaviors of glass fiber/unsaturated polyester composites under seawater environment[J]. Material and Design,2009,30(4):1337-1340.
【12】戴华,周润培. 耐碱环氧乙烯基酯树脂的分子设计[J]. 玻璃钢/复合材料,2014(2):59-61.
【13】XU J,HENK K,FRANS S K B. Moisture diffusion and hygrothermal aging in pultrudedfibre reinforced polymer composites of bridge decks[J]. Material and Design,2012,37:304-312.
【14】XU J,HENK K,FRANS B,et al. Effects of hygrothermal aging on glass-fibre reinforced polymer laminates and adhesive of FRP composite bridge:moisture diffusion characteristics[J]. Composites:Part A,2014(57):49-58.
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