Corrosion Monitoring of Steel Structure Coating Degradation

Abstract

An important aspect regarding the sustainability of steel structures is to ensure the structure is protected from corrosion. A number of surface coatings are available that play an important role in protecting these structures. An important part of the management of these structures is reliable and regular inspection along with methods for early detection of corrosion processes. In this paper, a development and application of sensors for monitoring the steel coating degradation and corrosion damage to steel substrate are presented. An encapsulated corrosion kit with integrated EIS sensors and ER probes was developed. To test its efficiency, steel probes were coated with selected coatings in the laboratory and their performance was assessed under various aggressive atmospheres, including; salt, industrial and humid atmosphere.

Experimental Investigation for Monitoring Corrosion Using Plastic Optical Fiber Sensors

“…Depending on the extent of the corrosion, a structure linked to or in contact with a corroded region might undergo deformation. Research on the corrosion process and its monitoring has been conducted across numerous disciplines [1][2][3][4][5]. These methods included directly tracking the corrosive environment [6], analyzing electrochemical signals in metals that were generated or altered owing to corrosion [7][8][9][10][11][12][13][14][15], assessing specimen weight fluctuations induced by corrosion [16], evaluating structural deformation resulting from corrosion [17][18][19][20], and examining alterations in the wave propagation characteristics of metal components owing to corrosion [21,22].…”

Low-Cost Technologies Used in Corrosion Monitoring

“…The World Corrosion Organization (WCO) estimates that the annual cost of problems caused by corrosion worldwide reaches $US2.4 trillion, which is 3% of the world’s gross domestic product (GDP) [ 1 ]. In many developed nations, corrosion can cause structural damages with costs approaching 3.5% to 4.5% of the gross national product (GNP) [ 2 ]. For example, on 22 November 2013, corrosion was the main reason for the oil pipeline explosion in the city of Qingdao in China’s eastern Shandong province, as it thinned the pipeline’s wall, leading to the break and causing a substantial economic loss of $US123.9 million [ 3 ].…”