History of Asphalt Mix Design in North America, Part II: Superpave

This article, the second in a two-part series on the history of asphalt mix design in North America, discusses the development and history of Superpave mix design. Superpave was developed as part of the Strategic Highway Research Program (SHRP) from 1987 to 1993. Superpave mix design had three levels of increasing complexity. The author describes the empirical volumetric properties that are to be included in Superpave, covering air voids, voids in mineral aggregate (VMA), voids filled with asphalt (VFA); the SHRP used a group of technical experts to better define the important properties of Superpave through a series of five questionnaires. Components and issues covered by the expert panel were compaction, air voids, VMA, VFA, aggregate gradation, crushed faces, and the use of natural sand. The author concludes with a section on the limitations of current mix design systems (Marshall, Hveem, or Superpave) and notes that mixture designs that incorporate performance prediction may still be at least 10 years in the future.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1514484
• Authors:
  • Huber, Gerry
• Publication Date: 2013

Language

• English

Media Info

• Media Type: Print
• Features: Photos;
• Pagination: pp 25-29
• Serial:
  • Asphalt
  • Volume: 28
  • Issue Number: 2
  • Publisher: Asphalt Institute
  • ISSN: 0004-4954

Subject/Index Terms

• TRT Terms: Air voids; Asphalt mixtures; Highways; Hot mix asphalt; Mix design; Pavements; Paving; Superpave
• Identifier Terms: Strategic Highway Research Program
• Subject Areas: Highways; History; Pavements; I22: Design of Pavements, Railways and Guideways; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01531709
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 25 2014 4:21PM