Asphalt pavement overlay service life reliability assessment based on non-destructive technologies

Sound pavement reliability analysis requires a sufficiently large amount of data to generate probabilistic inputs. This study proposes to use non-destructive testing (NDT) technologies to address this issue due to their desirable properties. In particular, a ground-penetrating radar and a falling weight deflectometer are selected and jointly employed to accommodate pavement service life reliability analysis. This study focuses on the asphalt overlay structure from a real-world pavement section. The probabilistic overlay performance in terms of fatigue is investigated. The overlay service life reliability across a 20-year analysis horizon is calculated through both analytical and simulation approaches, with the former being close to the latter. It is shown that the probabilistic results more rationally reflect engineering reality than the traditional and deterministic results. This study suggests that it is feasible and appealing to use NDT technologies to enhance pavement analysis as well as rehabilitation decision making in a reliability-based manner.


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  • Accession Number: 01520560
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 19 2014 3:00PM