Corrosion performance of coated reinforcing bars embedded in concrete and exposed to natural marine environment

Influence of external loading and loading type on corrosion behavior of RC beams with epoxy-coated reinforcements

“…Accelerated tests were carried out to check the corrosion resistance of the RC members containing with epoxy-coated reinforcements in simulated seawater and/or chloride solutions [1][2][3][4][5][6][7][8][9]. Test results showed, although the corrosion resistance of the epoxy-coated reinforcement may be influenced by the holidays and surface damage on the coating [9][10], the fusion-bonded epoxy coating did provide a significant improvement in corrosion resistance.…”

“…Investigation on effects of bridge-deck cracking on the performance of ECR bars in 80 bridges in the state of Iowa also showed that, the adhesion of the coating decreased at a faster rate for the reinforcing bars collected from cracked locations than that of reinforcing bars collected from uncracked locations [15]. For experimental research work carried out on the corrosion behavior of the RC members with epoxy-coated reinforcements, only the environmental factors were emphasized [1][2][3][4][5][6][7]; while for field surveys on corrosion performance of RC members with epoxy-coated reinforcing bars, the lack or insufficient of the loading information makes it difficult to judge in what extent the corrosion behavior of the epoxy-coated reinforcing bars in the RC members is influenced by the external loads, although signs of corrosion of epoxy-coated reinforcing bars were exhibited in the cracked zones produced by the external loads [11,14]. In addition, it is also difficult to separate the contribution of the epoxy-coating to improved performance from other improvements in concrete quality and construction practices [12].…”

Interface Characteristics and Properties of a High-Strength Corrosion-Resistant Stainless Steel Clad Rebar

“…With an ever-increasing demand for enhanced durability and strength, the prospect of widespread applications of stainless steel clad (SSC) rebars is promising in the realm of infrastructure, chemical industry, oil industry, and construction engineering [1][2][3]. Since 2000, SSC rebar research has been widely implemented in some American states, such as Texas and Virginia, and the results revealed that a SSC rebar shows the same corrosion resistance as that of stainless steel when subjected to accelerated cyclic wetting and drying tests in a corrosive solution [4,5].…”

Effect of curing agent molecular structures on the tribological and corrosion behaviors of epoxy resin coatings

“…So far, fabrication of organic coating on the surface is a cost-effective way to protect metal and alloys [8]. Epoxy resin (EP) is one of most widely used thermosetting resins for organic coatings with excellent anti-corrosion, mechanical strength, and dielectric properties.…”