ON NEW YORK HIGHWAYS: OPEN GRADED ASPHALT GIVES 30% GREATER SKID PROTECTION

An open-graded asphalt friction course is described which has shown an increase in skid resistance and a reduction in vehicle hydroplaning. The distinguishing characteristics lies in the aggregate used in the asphalt mix. A large percentage the aggregate is the same size. Runoff subsurface water was observed to be better with larger aggragate passing the 3/4 and 1/2 inch sieves. The temperature of the asphalt is critical and must range from 225 to 250 deg F. The open-graded asphalt mix must by placed during the summer when temperatures are above 60 deg F. If the road is uneven, it should be planed smooth or covered with a binder course.

Media Info

  • Features: Photos; Tables;
  • Pagination: p. 30-31
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00096271
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 15 1975 12:00AM