LOW TEMPERATURE SHRINKAGE CRACKING OF PAVEMENTS IN PENNSYLVANIA

Six test pavements were constructed on Traffic Route 219 in Pennsylvania in September 1976 using AC-20 asphalt cements from different sources. The research was undertaken as a long term durability project with the following objectives: to study the changing asphalt properties in the aging pavements in service; to determine the effect of rheological properties of AC-20 asphalt cements at 77 F (25 C) or lower temperatures on the pavement performance and durability; and to develop suitable specifications for AC-20 asphalt cement to insure durable pavements. The 1976-1977 winter following the construction of these test pavements was very severe in Pennsylvania. Visual observation of the six test pavements after the winter revealed that two test pavements have developed extensive low temperature associated cracking. Similar cracking was also observed on several pavements in Northern Pennsylvania where the AC-20 asphalt cement came from the same source. The paper discusses testing and analyses done to study the cause of this cracking problem.

  • Supplemental Notes:
    • From the Technical Session, Lake Buena Vista, Florida, 13-15 February 1978.
  • Corporate Authors:

    University of Minnesota, Minneapolis

    155 Experimental Engineering Building
    Minneapolis, MN  United States  55455
  • Authors:
    • Kandhal, P S
  • Conference:
  • Publication Date: 1978

Media Info

  • Features: References;
  • Pagination: p. 73-114
  • Serial:
    • Volume: 47

Subject/Index Terms

Filing Info

  • Accession Number: 00197208
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Sep 15 1979 12:00AM