Deep lift asphalt pavement: a more sustainable pavement rehabilitation option for heavily trafficked roads

The use of multi-layered structural asphalt is an extremely appropriate and elegant solution for the rehabilitation of heavily trafficked urban roads both in terms of its inherent qualities and its construction methodology. Compared to other approaches it requires little excavation (so does not involve the relocation of underground services), does not require permanent closure of the affected area during construction, does not require a waterproof chip-seal membrane and does not need a premium quality aggregate sub-base/basecourse (which is an increasingly rare and costly resource in the Auckland region). The deep lift structural asphalt philosophy is to transfer traffic loading to the top pavement layers while reducing the loading impact on the lower weak pavement layers (subgrade and sub-base). The result is a rehabilitation solution that offers major time and cost savings over the short and long term, while providing the resilience required to deal with heavy traffic loads.

Language

  • English

Media Info

  • Pagination: 20p

Subject/Index Terms

Filing Info

  • Accession Number: 01388009
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Aug 23 2012 12:34AM