摘要
综述了国内外学者对应用于海洋工程中的GFRP筋耐潮湿侵蚀,耐酸、碱、盐腐蚀,以及抗紫外线辐射,抗冻融破坏,耐干湿循环等性能的研究,分析了不同环境下GFRP筋性能的退化机理,介绍了采用改进的Arrhenius方程预测GFRP筋使用寿命的方法,并对海洋工程中GFRP筋的研究和应用进行了展望。
Steel corrosion induced by chloride could lead to structural failure and maintenance problems in coastal and marine engineering.Thus,GFRP bar is considered as a better alternative because it is lightweight,has high tensile strength,has fatigue resistance,is non-magnetic,and has corrosion resistance.This paper summarizes the research on the durability problems of GFRP bars,such as the moisture resistance,acid resistance,alkalinity,salt corrosion,anti-UV capability,freeze-thaw resistance,and wet and dry cyclic resistance.The degradation mechanism of GFRP bars in different environments is also analyzed.At last,the authors introduce a modified Arrhenius equation for the life prediction of the GFRP bars,and put forward their own opinions on future research and applications of GFRP bars in marine engineering.
出处
《水利水电科技进展》
CSCD
北大核心
2012年第3期86-89,共4页
Advances in Science and Technology of Water Resources
基金
"十二五"国家科技支撑计划(2012BAB03B02)
江苏省科技基础设施建设计划(BM2010453)
