Reinforced flexible pavements: cost-effective analysis

Flexible pavements are a widespread method to build infrastructure in Europe and in Italy in particular. It is well known that they are a multilayer system of Hot Mix Asphalt (HMA), and the lack of bearing capacity of this material can affect the service life. Therefore, in the last 10 years worldwide research efforts were involved in studies related to the use of different reinforcing systems, in order to build more efficient and cost-effective infrastructure, but also taking into consideration the protection of the environment as well. Hence, the aim of this work is to analyze the benefits of the use of different kinds of grids inserted in a multilayer flexible pavement. In fact, the effects of this choice were studied in terms of service life of asphalt pavements. As a result, these advantages were translated not only in savings of money, but also in an improvement of the quality of performance. Moreover, the reinforcements were placed in the pavements in a "superficial position" and subsequently that means it would be possible to adopt this building technique in pre-existing infrastructure, in order to improve the performance and to extend the service life of weak asphalt pavements. Furthermore, the objective of this work was reached by arranging a laboratory survey using real scale samples. In fact, 3-point bending tests were carried out using different specimens with and without reinforcements, in order to underline and analyze the dissimilarities between these two different scenarios.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; Photos; References; Tables;
  • Pagination: 13p
  • Monograph Title: 24th World Road Congress Proceedings: Roads for a Better Life: Mobility, Sustainability and Development

Subject/Index Terms

Filing Info

  • Accession Number: 01519970
  • Record Type: Publication
  • ISBN: 2840602679
  • Files: TRIS
  • Created Date: Mar 10 2014 4:11PM