Evaluating the Quantitative Influence of Different Causes of Ravelling for Improved Maintenance Strategies

Planning of pavement maintenance is often based on field measurements of the technical pavement condition, including surface distress (cracks and ravelling). Its objective and accurate quantification remains a challenge. This work, being a collaboration of government, science and industry, reveals the causes of ravelling and provides a quantitative measure of their relative importance. Development of ravelling may be influenced by various factors. This contribution elucidates their relative importance by means of a statistical model. The model uses data collected within an extensive field study. The authors surveyed real pavement performance of 740 lane kilometres of motorways in four European countries over one or two winters. Results indicate that ravelling development depends mainly on the overall wear type of the pavement expressed by its age and the percentage of initially ravelled area. Moreover, in winter porous asphalt ravels twice faster than asphalt concrete. Other factors, such as the heavy traffic intensity or local structure and weather conditions have lower impact on ravelling development. Quantitative results complement our physical and mechanical understanding of ravelling development. The authors apply these insights to evaluate the influence of an innovative treatment preventing frost damage. An analysis based on pavement management system confirms effectiveness of the novel treatment.

Language

  • English

Media Info

  • Media Type: Web
  • Features: Figures; Photos; References; Tables;
  • Pagination: 15p
  • Monograph Title: Proceedings of the 25th World Road Congress - Seoul 2015: Roads and Mobility - Creating New Value from Transport

Subject/Index Terms

Filing Info

  • Accession Number: 01689132
  • Record Type: Publication
  • ISBN: 9782840604235
  • Files: TRIS
  • Created Date: Dec 14 2018 3:28PM