Experimental mixes to minimize rutting.

Details

• Creators:
  Hughes, Charles S
• Corporate Creators:
  Virginia Transportation Research Council (VTRC)
• Subject/TRT Terms:
  • Pavements, Asphalt concrete--Evaluation
  • Pavements, Asphalt concrete--Design and construction
  • Road materials--Evaluation
• Publication/ Report Number:
  FHWA/VA-90/21 ; VTRC 90-R21
• Resource Type:
  Tech Report
• Geographical Coverage:
  Virginia
• Edition:
  Final report.
• Corporate Publisher:
  Virginia Transportation Research Council (VTRC)
• Abstract:
  This report describes the materials and construction details involved in the design and placement of four experimental mixes on I-95 (Richmond- Petersburg Turnpike) in 1985 and follows the performance for 48 months. The mixes were designed to resist rutting and to provide several years of service before failing from fatigue or the intrusion of water. The results indicate that the gradation chosen is more important in minimizing rutting than are the asphalt cement-additive combinations used. However, some strength tests point to the value of using an AC-30 asphalt cement as opposed to an AC-20 asphalt cement. Controlling traffic for a sufficient time to allow the pavement to cool to a temperature at which traffic will not prolong the compaction process is critical. The minor rutting that has occurred was attributed primarily to consolidation. Ruts on one test section that averaged almost 1/4 in apparently resulted from a low voids in mineral aggregate of the mix used on that section.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/19258/dot_19258_DS1.pdf
• File Type:
  [PDF - 2.83 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:ba191630def76ce3c075ea33433895ef4b6d5f006520ff3aebd03c85b9265ca207adf3a191c9c046cc5d9e6d1c3d678e94ebbeeefb5cf98bc18736ee2d0e85af