Investigation on CFRP as dual-functional material in chloride-contaminated solutions

被引：47
|
作者：
Zhu, Ji-Hua [1 ]
Wei, Liangliang [1 ]
Moahmoud, Hitham [2 ]
Redaelli, Elena [2 ]
Xing, Feng [1 ]
Bertolini, Luca [2 ]
机构：
[1] Shenzhen Univ, Sch Civil Engn, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Guangdong, Peoples R China
[2] Politecn Milan, Dept Chem Mat & Chem Engn G Natta, Via Mancinelli 7, I-20131 Milan, Italy
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2017年 / 151卷
基金：
欧洲研究理事会;
关键词：
A; Polymer; B; EIS; Polarization; C; Chlorination; Oxidation; C. Cathodic protection; CURRENT CATHODIC PROTECTION; REINFORCED-CONCRETE; CARBON-FIBERS; CORROSION; BEHAVIOR; STEEL; DAMAGE; ANODE; FRP; INTERFACE;
D O I：
10.1016/j.conbuildmat.2017.05.213
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This paper investigates the performance of carbon fibre reinforced polymer (CFRP) as a dual function material in combined impressed current cathodic protection and structural strengthening of reinforced concrete structures. Tests in solution showed that CFRP maintain stable electrical conductivity after 80 d accelerated anodic polarization. Results suggest that oxygen evolution occurring at low chloride ion concentration ([Cl-]) primarily damages the carbon fibre, while chlorine evolution occurring at high [Cl-] primarily damages the epoxy resin. The tensile strength of CFRP after anodic polarization decreases with increasing circulated charge, and, for a given circulated charge, it increases with increasing [Cl-]. (C) 2017 Published by Elsevier Ltd.
引用
收藏
页码：127 / 137
页数：11
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