Long-Term In Situ Performance Evaluation of Epoxy Asphalt Concrete for Long-Span Steel Bridge Deck Pavement

Suitable evaluation of distress is beneficial to understanding the in situ performance deck pavement. This study attempts evaluate long-term American ChemCo epoxy asphalt concrete on Xihoumen Bridge (XHMB) after 12 years service. The traditional indexes were adopted reveal XHMB. Then, based typical distresses, a new pavement index (PPI) was proposed characterize authentic condition. Finally, and evolution conducted. According results, rutting depth riding quality all lanes are higher than 97 94, respectively. condition pass drive 2021 greater 94 86, respectively, which contradictory distribution numerous distresses PPI PPIs down direction lane mostly 100. However, for lane, about 30% segments below 80 or 60. limited data, may initiate serving 4–5 then escalate 10 years.