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Understanding Fibre-Matrix Degradation of FRP Composites for Advanced Civil Engineering Applications: An Overview

1
Department of Mechanical and Aerospace Engineering, Monash University, Clayton, VIC 3800, Australia
2
Department of Chemical Engineering, Monash University, Clayton, VIC 3800, Australia
3
Department of Civil Engineering, Monash University, Clayton, VIC 3800, Australia
*
Author to whom correspondence should be addressed.
Corros. Mater. Degrad. 2018, 1(1), 27-41; https://doi.org/10.3390/cmd1010003
Received: 16 May 2018 / Revised: 7 June 2018 / Accepted: 13 June 2018 / Published: 27 June 2018
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PDF [5823 KB, uploaded 20 July 2018]
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Abstract

Common concretes use considerable amounts of fresh water and river sand, and their excessive use is already seriously implicating the environment. In this respect, seawater and sea sand concrete (SWSSC) is a very attractive alternative, since it addresses the increasing shortage of fresh water and dredging of river sand. A major concern with reinforced SWSSC is the severe corrosion of the steel reinforcements by seawater (that has a very high content of chloride which is very corrosive), thereby seriously impairing the strength of such concrete. Fibre reinforced polymer (FRP) can be a suitable alternative to replace steels as reinforcement. However, there has been little systematic work to understand the degradation kinetics and mechanisms of FRP in the chloride-containing alkaline SWSSC environment. This review first provides an overview of the degradation of FRP composites in normal concrete and chloride-containing alkaline SWSSC environments, and then presents an example of a recent study using scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) that may provide a pathway to systematic experimental approach to understanding such degradation. The review also makes a comprehensive assessment of the influence of environment-assisted degradation on mechanical properties of FRPs. View Full-Text
Keywords: seawater and sea sand concrete (SWSSC); durability; carbon fibre reinforced polymer (CFRP); glass fibre reinforced polymer (GFRP); basalt fibre reinforced polymer (BFRP) seawater and sea sand concrete (SWSSC); durability; carbon fibre reinforced polymer (CFRP); glass fibre reinforced polymer (GFRP); basalt fibre reinforced polymer (BFRP)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Raman, R.K.S.; Guo, F.; Al-Saadi, S.; Zhao, X.-L.; Jones, R. Understanding Fibre-Matrix Degradation of FRP Composites for Advanced Civil Engineering Applications: An Overview. Corros. Mater. Degrad. 2018, 1, 27-41.

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Corros. Mater. Degrad. EISSN 2624-5558 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
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