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.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1519687
• Publication Date: 1975-3

Media Info

• Features: Photos; Tables;
• Pagination: p. 30-31
• Serial:
  • Better Roads
  • Volume: 46
  • Issue Number: 3
  • Publisher: James Informational Media, Incorporated
  • ISSN: 0006-0208
  • Serial URL: http://www.betterroads.com

Subject/Index Terms

• TRT Terms: Aggregates; Asphalt; Friction; Highway design; Highways; Hydroplaning; Open graded aggregates; Pavement surface course; Pavements; Skid resistance; Subsurface drainage; Temperature; Texture
• Uncontrolled Terms: Aggregate size
• Old TRIS Terms: Frictional properties
• Subject Areas: Geotechnology; Highways; Pavements;

Filing Info

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