Gilsonite, an Asphalt Modifier

Details

• Creators:
  Harmelink, Donna S.
• Corporate Creators:
  Colorado. Department of Transportation
• Corporate Contributors:
  United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Asphalt
  • Elastomer modified asphalt
  • Pavement cracking
  • Pavement performance
  • Pavement ruts
  • Performance evaluations
  • Rutting
  • Asphalt additives
  • Gilsonite
• Publication/ Report Number:
  CDOT-DTD-R-92-3
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Colorado
• Edition:
  Final Report
• Corporate Publisher:
  Colorado. Department of Transportation
• Description:
  Over the last several years Colorado asphalt pavements have experienced early deterioration and premature pavement failures. This study evaluated the product, Gilsonite. Gilsonite is a naturally occurring solid hydrocarbon and is currently being marketed as an asphalt modifier. Gilsonite is a modifier which is intended to increase the stability of the pavement and help resist rutting often found on today's pavements. Following the 3-year evaluation, the data indicates the addition of Gilsonite, although it does appear to reduce or retard rutting, tends to harden the pavement creating a pavement structure which is more susceptible to premature cracking. The cracks appeared at a much faster rate and the cracks tended to deteriorate quicker and to a greater extent in the Gilsonite section.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/93947/dot_93947_DS1.pdf
• File Type:
  [PDF - 3.07 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:9e0f085049b4ea813e3d1032cb30107ee87e1f68de920abe614d0c9406238a85ea6dd6fcd3e21838b22f4fa459cb144f731bd902fb9988408b01252f81dcf1e6