I 70 Glenwood Canyon Overlay With Trinidad Lake Asphalt/Steel Slag Hot Mix Asphalt

Details

• Creators:
  LaForce, Robert
• Corporate Creators:
  Yeh and Associates, Inc.
• Corporate Contributors:
  Colorado. Department of Transportation ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Asphalt additives
  • Slag
  • Hot mix asphalt
  • Pavement performance
  • Mix design
  • Polymer asphalt
  • Performance tests
  • Steel by properties
  • Trinidad asphalt
  • Longitudinal joints
  More +
• Publication/ Report Number:
  CDOT-DTD-R-2005-13
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Colorado
• Edition:
  Final Report
• Corporate Publisher:
  Colorado. Department of Transportation
• Description:
  In 2001, CDOT overlaid twelve miles of I 70 in Glenwood Canyon with a unique asphalt mix design that utilized a traditional Performance Graded Binder blended with Trinidad Lake Asphalt (TLA) and traditional aggregate blended with steel slag aggregate. This is the first project where CDOT has incorporated TLA in the mix design. There are many natural deposits of asphalt found around the world; Trinidad Lake is the most famous and has the largest commercial deposit of natural asphalt in the world. This study was designed to evaluate the performance of a pavement containing Trinidad Lake Asphalt blended with a polymer modified asphalt (PG 76-28) in combination with a very hard and angular steel slag under Colorado weather and traffic conditions. Two of three test sections experienced premature failure along the longitudinal construction joint and that failure appears to have been due to inadequate densities along the longitudinal joint rather than due to the mix design. The pavement performed well in all of Test Section 3, and in Test Sections 1 and 2 in areas away from the longitudinal joint.
• Format:
  PDF
• Funding:
  10.38
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/93107/dot_93107_DS1.pdf
• File Type:
  [PDF - 2.26 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:2a7372ea8870196aba0f538ace4df531d517d3cb9b446b807d191b982110af45c436b5d256f3203797fd773ada8aa6292d3b21f3bb10a4af84bf208a59560821