aintained in the binder where the asphalt mix has an in situ void contentof less than six per cent. This paper goes further to prove that air ingress into the asphalt wearing course is highly restricted when the void content is less than six per cent. The means of showing this phenomenon wasby way of using a field permeater to measure the infiltration rate of thewearing course. The work proved that it is possible to design mixes which are far easier to compact, ensuring low in situ voids and thereby reduced permeability of air and water. The report recommends that for low volume roads, specifying authorities should specify in situ void of less than six or seven per cent with a minimum stability of 4 KN. (a) For the covering abstract of this conference see IRRD abstract no. 861222.


  • English

Media Info

  • Features: References;
  • Pagination: p. 257-70

Subject/Index Terms

Filing Info

  • Accession Number: 00669780
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ITRD, ATRI
  • Created Date: Dec 23 1994 12:00AM