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Mix Design Practices for Warm-Mix Asphalt (2011) / Chapter Skim
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Pages 5-7

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From page 5...
... Table 1 summarizes the various WMA processes identified under NCHRP Project 09-43. The earliest WMA processes developed in Europe were based on using either waxes or foamed asphalt.
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From page 6...
... http://gencorgreenmachine.com WAM Foam Soft binder followed by hard foamed binder Kolo Veidekke, Shell Bitumen http://www.shell.com/home/content/bitumen/products/shell_wam_foam/ Table 1. Summary of WMA processes identified during NCHRP Project 09-43.
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From page 7...
... For most WMA projects constructed in the United States, WMA has been substituted into a mixture designed as HMA with no change to the job mix formula. If warm mix is to replace hot mix in the future, a laboratory mixture design procedure for WMA must be established.
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Key Terms

  • wma process
  • binder content
  • mixture design
  • foamed asphalt
  • nchrp project

  • production temperature
  • wma processes
  • design procedure
  • double barrel
  • barrel green

  • asphalt binder
  • laboratory mixture
  • mix asphalt
  • warm mix
  • wma project

  • production temperatures
  • performance grade
  • soft binder
  • state highway
  • asphalt mixture

  • fine aggregate


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