PERFORMANCES OF A HIGH QUALITY MIX FULL-DEPTH ASPHALT PAVEMENT

Pavement strengthening techniques consist of rebuilding, partially or entirely, some layers or placing an overlay on the existing surface. Now these techniques often employ high quality mixes, which have good elastic characteristics and good fatigue resistance. Such properties can be obtained by using modified bituminous binders and dense graded mixtures. High quality mixes allow thickness reduction of the strengthening layers. The "Autostrade Meridionali" Company planned the application of a "high modulus" mix on the Napoli-Salerno highway and made possible in situ tests of this behavior. This paper reports an analysis of the tests carried out on a highway stretch, 800 m long, rebuilt and considerably strengthened by employing this mix in a full depth asphalt pavement. The aim of this study is to compare the performances of the mix laid down in situ with those of the mix made in the laboratory, to evaluate the adhesion between the layers of pavement and to find the edge effect on the strain values.

Language

  • English

Media Info

  • Features: Figures; References;
  • Pagination: p. 340-357

Subject/Index Terms

Filing Info

  • Accession Number: 00666168
  • Record Type: Publication
  • Report/Paper Numbers: VTI 1A, Part 3
  • Files: TRIS, ATRI
  • Created Date: Sep 28 1994 12:00AM