Warm-Mix Asphalt Study: First-Level Analysis of Phase 2b Laboratory Testing on Laboratory-Prepared Specimens

This report describes laboratory testing of laboratory-prepared specimens as part of the second phase of a warm mix asphalt study, which compares the performance of a hot mix control produced at 310°F (155°C) against the performance of warm mixes produced at 250°F (120°C) with four different technologies. The laboratory testing completed in this phase has provided no new results to suggest that warm mix technologies should not be used in dense- or open-graded mixes in California, provided that standard specified construction and performance limits for hot mix asphalt are met. It should be noted that lower production temperatures could lead to insufficient drying of aggregates, which in turn could result in moisture-related problems in the road. Moisture content in aggregates should be strictly controlled at asphalt plants and specified mix moisture contents (i.e., less than 1.0 percent by weight of the mix) should be adhered to.

• Record URL:
  http://www.its.ucdavis.edu/research/publications/publication-detail/?pub_id=2356
• Record URL:
  http://www.ucprc.ucdavis.edu/PDF/UCPRC-RR-2012-07.pdf
• Record URL:
  https://merritt.cdlib.org/d/ark%3A%2F13030%2Fm5sx987p/1/producer%2FUCPRC-RR-2012-07.pdf
• 
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/920488580
• Corporate Authors:

  University of California, Berkeley

  Institute of Transportation Studies, Pavement Research Center
  1353 South 46th Street
  Richmond, CA  United States  94804

  University of California, Davis

  Pavement Research Center, 1353 South 46th Street, Building 452
  Richmond, CA  United States  94804

  California Department of Transportation

  Division of Research, Innovation and System Information
  1727 30th Street, MS 83
  Sacramento, CA  United States  95816
• Authors:
  • Jones, David
  • 0000-0002-2938-076X
  • Tsai, B
• Publication Date: 2012-6

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Appendices; Figures; References; Tables;
• Pagination: 65p
• Serial:
  • University of California Pavement Research Center Research Report

Subject/Index Terms

• TRT Terms: Accelerated tests; Air voids; Dense graded aggregates; Laboratory tests; Moisture content; Open graded aggregates; Specifications; Temperature; Warm mix paving mixtures
• Geographic Terms: California
• Subject Areas: Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 01577573
• Record Type: Publication
• Source Agency: UC Berkeley Transportation Library
• Report/Paper Numbers: UCPRC-RR-2012-07, CA152385A
• Contract Numbers: Strategic Plan Element 4.18
• Files: CALTRANS, TRIS, ATRI, STATEDOT
• Created Date: Sep 30 2015 9:08AM