MODERN CONCEPTS FOR DENSITY CONTROL PHASEI: BITUMINOUS WEARING COURSES

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

  • Corporate Authors:

    Minnesota Department of Highways

    Office of Research Coordination
    St Paul, MN  United States  55101
  • Authors:
    • Wolters, R O
  • Publication Date: 1973

Subject/Index Terms

Filing Info

  • Accession Number: 00214559
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: Final Rept
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: May 7 1974 12:00AM