加速老化环境下纤维增强复合材料筋耐腐蚀性能试验研究

董志强; 张光超; 吴刚; 吴智深

doi:10.13204/j.gyjz201306004

加速老化环境下纤维增强复合材料筋耐腐蚀性能试验研究

doi: 10.13204/j.gyjz201306004

董志强^1,2,
张光超¹,
吴刚^1,2,
吴智深^1,2

1.
1. 东南大学城市工程科学技术研究院,南京210018;
2.
2. 东南大学混凝土及预应力混凝土结构教育部重点实验室,南京210096

基金项目:

国家高技术研究发展计划(863计划)项目(2012AA03A204);中日国际合作项目(2012DFG20510);国家自然科学基金项目(51078077)

详细信息

作者简介:
第一作者：董志强, 男, 1990年出生, 博士研究生。电子信箱：dzq19901209@163.com

中图分类号: TU377
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- 文章访问数: 184
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- PDF下载量: 78
- 被引次数: 0
出版历程
- 收稿日期: 2013-02-10
- 刊出日期: 2013-06-20

EXPERIMENTAL STUDY ON CORROSION RESISTANT PERFORMANCE OF FRP BARS UNDER ACCELERATED AGING ENVIRONMENTS

1.
1. International Institute for Urban Systems Engineering,Southeast University,Nanjing 210018,China;
2.
2. Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education,Southeast University,Nanjing 210096,China

摘要

摘要: 对碳纤维和玄武岩纤维增强复合材料(CFRP和BFRP)筋材进行两种温度下、两种腐蚀溶液中的耐腐蚀性能试验研究，并对室内混凝土环境下的BFRP筋力学性能退化进行研究，同时，针对BFRP筋进行两种溶液、两种温度下的吸湿和质量损失试验。试验结果表明：随着温度的提高，纤维增强复合材料(FRP)筋的抗拉强度退化加剧；碱溶液对BFRP筋的腐蚀大于水，室内混凝土环境不会对BFRP筋造成损伤；CFRP筋的抗拉强度在两种腐蚀溶液中几乎不发生退化，但弹模退化程度大于BFRP筋。温度越高，筋材吸湿速率越大，碱溶液中大于水中；质量损失率能较好地表征FRP筋的性能退化情况。
- FRP筋 /
- 耐腐蚀性能 /
- 力学性能 /
- 吸湿率 /
- 质量损失率
Abstract: An experimental study on two kinds of FRP bars in two high temperature solutions was conducted to investigate their corrosion resistant performance.Furthermore, it was also studied the mechanical properties degradation of BFRP bars within indoor concrete environment.Meanwhile, the water uptake and mass loss performance of BFRP bars in two temperatures and two solutions were studied.The results showed that the increase of temperature aggravated the degradation degree of the tensile strength of FRP bars;the corrosion degree of BFRP bar in alkali solution was much more severe than in water, and the indoor concrete environment would not damage BFRP bar.There was almost no degradation in two corrosive solutions for tensile strength of CFRP bars, but their elastic modulus degraded greater than BFRP tendons.The higher the temperature, the greater the moisture absorption rate of reinforcement, the one in alkali solution was greater than that in water;mass loss rate could characterize the degradation of FRP bars well.
- FRP bars /
- corrosion resistant performance /
- mechanical properties /
- water uptake /
- mass loss rate

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参考文献(7)

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