A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Corrosion Performance of Epoxy-Coated Bars in Four Bridge Decks Subjected to Deicing Salts: 30-Year Perspective
AbstractThe corrosion performance of epoxy-coated bars in four bridge decks built in the 1970s is evaluated. The study includes data from two separate investigations conducted 10 years apart; it is based on data obtained from in situ inspections and laboratory tests. The data show that after approximately 30 years of service, the decks were all in good condition. They showed light cracking and few delaminated areas (some of which have already been patched), and only one deck had an open spall. Nonetheless, evidence of corrosion activity was found at various locations in all four decks, especially near or at expansion joints, or where cracks had developed. At these locations, chloride ion concentrations at the bar-level were high [3 kg/m3 (5 lb/cu yd) or greater], and the severed bars showed minor rust buildup on the surface. Away from joints or cracks, however, epoxy-coated bars typically showed zero or light corrosion with low bar-level chloride ion concentrations in the concrete.
Corrosion Performance of Epoxy-Coated Bars in Four Bridge Decks Subjected to Deicing Salts: 30-Year Perspective
AbstractThe corrosion performance of epoxy-coated bars in four bridge decks built in the 1970s is evaluated. The study includes data from two separate investigations conducted 10 years apart; it is based on data obtained from in situ inspections and laboratory tests. The data show that after approximately 30 years of service, the decks were all in good condition. They showed light cracking and few delaminated areas (some of which have already been patched), and only one deck had an open spall. Nonetheless, evidence of corrosion activity was found at various locations in all four decks, especially near or at expansion joints, or where cracks had developed. At these locations, chloride ion concentrations at the bar-level were high [3 kg/m3 (5 lb/cu yd) or greater], and the severed bars showed minor rust buildup on the surface. Away from joints or cracks, however, epoxy-coated bars typically showed zero or light corrosion with low bar-level chloride ion concentrations in the concrete.
Corrosion Performance of Epoxy-Coated Bars in Four Bridge Decks Subjected to Deicing Salts: 30-Year Perspective
Kim, Kyu-Sun (author) / Fratta, Dante / Pincheira, José A / Aramayo, Anton
2015
Article (Journal)
English
| British Library Online Contents | 2015
Performance of Coated Reinforcing Bars in Cracked Bridge Decks
| Online Contents | 2005