Towards a sustainable surfacing system for the long-spanned orthotropic steel bridge deck in China Part I: State-of-the-practice

ABSTRACT: Long-lasting asphalt surfacing systems still remain desirable for long-spanned stele as the deck pavement on many long-spanned steel bridges have exhibited severe distresses of cracking, rutting, shoving and de-bonding. Based on ten-year research works, this paper presented the state-of-the-practice of deck pavement on long-spanned steel bridges in mainland China. The typical distresses, their characteristics and the propagation have been figured out based on long-term field observation. Potential materials and structure solutions have been proposed according to field survey.