紫外线对CFRP与混凝土粘结性能的影响

杨勇新; 郭春红; 才鹏; 赵颜; 岳清瑞

doi:10.13204/j.gyjz200608006

紫外线对CFRP与混凝土粘结性能的影响

doi: 10.13204/j.gyjz200608006

1.
国家工业建筑诊断与改造工程技术研究中心北京 100088

基金项目:

2005攻关计划(国际合作)项目(编号:2005DFBA0002);国家自然科学基金重点项目(编号:50238030);国家863计划项目(编号:2004AA336010)资助

详细信息

作者简介:
杨勇新男 1963年11月出生博士教授级高级工程师 E-mail:yangyongxin@tsinghua.org.cn

中图分类号: TU53
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- 被引次数: 0
出版历程
- 收稿日期: 2006-04-10
- 刊出日期: 2006-08-20

THE EFFECT OF ULTRAVIOLET LIGHT ON CFRP-CONCRETE BOND PROPERTY

1.
National Engineering Research Center of Industrial Building Diagnosis and Rehabilitation Beijing 100088

摘要

摘要: 随着FRP加固结构的广泛应用,其耐久性问题也日益突出并受到关注。FRP与混凝土粘结的耐久性能与FRP材料的耐久性同等重要。光老化(尤其是紫外线)是影响FRP与混凝土粘结耐久性的环境因素的一种。对两种粘结形式的FRP与混凝土粘结性能进行了紫外线老化试验研究和分析,考察CFRP-混凝土拉伸剪切强度和正拉粘结强度随老化时间的变化特性,对比有无防护对CFRP-混凝土正拉粘结强度的影响。结果表明,紫外线对CFRP与混凝土的拉伸剪切强度影响较大,防护能有效缓减CFRP与混凝土的正拉粘结性能在紫外线作用下的劣化。
- FRP /
- 加固 /
- 耐久性 /
- 紫外线照射
Abstract: With the wide use of FRP strengthened structures,the problem of their durability has been highlighted and concerned.The durability of adhesive property between CFRP and concrete is as important as that of FRP.Light aging(especially UV light) is one of the factors that influences the durability of adhesive property of CFRP and concrete.The influence of UV light on tow kinds of the adhesive specimens of FRP and concrete bonding property was conducted.The change tendency of mechanical behavior of CFRP and concrete was investigated and the test results were analyzed.The adhesive properties of CFRP and concrete with and without protected were comparion.The results showed that the influence of UV light on adhesive property was great,and protection can slow the deterioration of adhesive strength of CFRP and concrete.
- FRP /
- strengthening /
- durability /
- UV light