Effectiveness of carbon fiber-reinforced polymer as a triple-functional material for sustainable protection of reinforced concrete structures

被引：0
作者：
Aifang Wei
Riyadh Al-Ameri
Mike Y. J. Tan
Yew-Chin Koay
Xiancun Hu
机构：
[1] University of Canberra,School of Design and the Built Environment
[2] Deakin University,School of Engineering
[3] Major Transport Infrastructure Authority (MTIA),undefined
来源：
Innovative Infrastructure Solutions | 2023年 / 8卷
关键词：
CFRP; Triple function; Impressed current cathodic protection; Reinforced concrete; Harsh environment;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Corrosion of steel reinforcement in concrete is one of the major issues in reducing the service life and durability performance of reinforced concrete (RC) structures. Carbon fiber-reinforced polymer (CFRP) as a triple-functional material in the impressed current cathodic protection (ICCP) system has been innovatively investigated in this study. An experimental program comprising three kinds of current densities of 0 mA/m2, 20 mA/m2 and 100 mA/m2 is presented in RC beams. All specimens are under a simulated harsh environment of 3.5% NaCl solution at 50 °C, wet-dry cycle, and sustained loading. The constant current density of 20 mA/m2 was found to be sufficient for the ICCP system, a higher current density is not needed even without using the conductive epoxy. The experimental results confirmed that CFRP can not only be used as a strengthening material, but also play a coating layer and ICCP anode role for sustainable protection of RC structures against corrosion.
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