Year: 2024
Type: article
Abstract: Epoxy-coated bars (ECB) and hot-dip galvanized (HDG) bars are commonly used for corrosion protection of steel reinforced concrete but both these types of bars have some known deficiencies.For example, the zinc-iron layer formed at the interface between approximately 150 µm (5.9 mils ) of coating and the steel bars is undesirable and causes flaking in HDG bars under bending.An emerging technology called continuous galvanizing is a simple and cost-effective process that is used to produce continuous galvanized rebar (CGR).Recent research and test results demonstrate that CGR outperforms ECB and HDG in terms of structural and corrosion performance.A smaller coating thickness of 50 μm (2 mils) of CGR has proven to be better corrosion-resistant than the larger 150 μm (5.9 mils) thickness of HDG and the epoxy coating of ECB.CGR is a cost-effective solution both in terms of the initial costs and life-cycle costs.Furthermore, the CGR manufacturing process is environmentally friendly compared to other coating processes.
Author: Anil Patnaik
Institution: University of Akron
Language: English
Subfield: Civil and Structural Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4406816243