COLD-MIX ASPHALT CONCRETE SURFACING

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

• TRT Terms: Asphalt concrete; Cold mix paving mixtures; Dense graded aggregates; Emulsified asphalt; Loads; Mix design; Open graded aggregates; Surface course (Pavements)
• Uncontrolled Terms: Triaxial loads
• Subject Areas: Highways; Materials; Pavements;

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
• Files: TRIS, USDOT, STATEDOT
• Created Date: Sep 14 1978 12:00AM