ASPHALT RECYCLING INNOVATIONS: WARM MIX LEADS THE WAY

A recently developed warm mix method is described which uses a Wirtgen cold milling machine and a Marini asphalt recycle travel plant. These create a new base material at 170 degrees F. The job mix formula varies put the process is the same as the not-in-place process except that it uses a lighter weight standard asphalt such as AC-5 to rejuvenate the old asphalt and coat any needed new gradation stone. Paving with warm mix is described. Major developments are expected in the form of in-place hot-mix recycling. They will center on increases in the percentage of recycle material that can be used in non-experimental mixes of high quality. Designs available to elevate the heat of recycle material are described. Cold-mix developments are discussed. It is also described how in Europe, contractors are mixing portland cement into milled material, adding water, and then roller compacting the result.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1519687
• Publication Date: 1988-7

Media Info

• Pagination: p. 23-26
• Serial:
  • Better Roads
  • Volume: 58
  • Issue Number: 7
  • Publisher: James Informational Media, Incorporated
  • ISSN: 0006-0208
  • Serial URL: http://www.betterroads.com

Subject/Index Terms

• TRT Terms: Asphalt concrete; Asphalt mixtures; Construction equipment; Field tests; Hot mix asphalt; Innovation; Portland cement; Recycling; Temperature; Warm mix paving mixtures
• Old TRIS Terms: Insitu methods
• Subject Areas: Highways; Materials; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00470886
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 31 1988 12:00AM