The increasing attractiveness of emulsified asphalt from ecological and energy conservation viewpoints precipitated this study of the performance of dense-graded and open-graded asphalt concrete surface courses containing emulsified asphalt. A total of two (each) test sections containing dense-graded and open graded cold mix were constructed and their performance monitored for one to five years. In addition, several cold-mix pavements placed in Oregon and Washington were viewed and some laboratory mix design work completed toward the development of an improved mix design procedure for cold-mixed dense-graded asphalt concrete. It was concluded that the field curing problems associated with dense-graded cold-mix AC surfacing would preclude their use for most Caltrans paving and that the use of cold-mix open-graded AC offers the possibility of being a viable alternate to hot mix, particularly in remote locations. The construction of additional cold-mix open-graded test sections is recommended.

  • Supplemental Notes:
    • This report was prepared in cooperation with the DOT, Federal Highway Administration.
  • Corporate Authors:

    California Department of Transportation

    Transportation Laboratory
    5900 Folsom Boulevard
    Sacramento, CA  United States  95819
  • Authors:
    • Scrimsher, T
    • Doty, R N
  • Publication Date: 1977-8

Media Info

  • Pagination: 81 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00178791
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: FHWA-CA-TL3542-77-23Final Rpt., FCP 45C2-364
  • Contract Numbers: G-2-8
  • Created Date: Sep 14 1978 12:00AM