THE REHABILITATED AASHO TEST ROAD PART I--MATERIALS AND CONSTRUCTION

THE WORKING COMMITTEE FOR THE AASHO ROAD TEST PROJECT RECOMMENDED EXTENDING THE STUDY OF THE AASHO ROAD TEST UNDER MIXED TRAFFIC AT THE SITE NEAR OTTAWA, ILLINOIS. AT THE CLOSE OF CONTROLLED TESTING, NEW RIGID AND FLEXIBLE TEST SECTIONS WERE ADDED AS LINKS BETWEEN THE TEST TANGENTS OF THE FOUR MAJOR LOOPS AND AS REPLACEMENT TEST SECTIONS FOR THOSE WHICH EITHER HAD FAILED OR WERE INADEQUATE BY INTERSTATE STANDARDS. NEW SUBBASE MATERIALS INTRODUCED UNDER RIGID PAVEMENT WERE CRUSHED STONE, GRAVEL, BITUMINOUS-AGGREGATE MIXTURE AND CEMENT-AGGREGATE MIXTURE, BUT THE ONLY NEW SUBBASE MATERIAL USED UNDER THE FLEXIBLE PAVEMENT WAS GRAVEL. EXCEPT FOR PORTLAND CEMENT CONCRETE, BASE MATERIALS SUCH AS SALVAGED CRUSHED STONE-SPECIAL, CRUSHED STONE, BITUMINOUS- AND CEMENT-AGGREGATE MIXTURES WERE SIMILAR TO THOSE USED IN THE ORIGINAL AASHO TEST ROAD. AS A SIDE STUDY, THE BITUMINOUS SURFACE WAS ALTERED IN SEVERAL TEST SECTIONS EITHER BY ADDING ASBESTOS TO OR BY SUBSTITUTING HYDRATED LIME AND KAOLIN CLAY FOR LIMESTONE DUST MINERAL FILLER. THE NEW EXPERIMENTAL HIGHWAY, WHICH WAS OPENED TO TRAFFIC IN NOVEMBER 1962 AS A PART OF INTERSTATE 80, HAS 85 RIGID AND 43 FLEXIBLE TEST SECTIONS. /FHWA/

  • Supplemental Notes:
    • Contract IHR-28-PHASE I
  • Corporate Authors:

    Illinois Department of Transportation

    Bureau of Materials and Physical Research
    126 East Ash Street
    Springfield, IL  USA  62704-4766
  • Authors:
    • Little, R J
    • McKenzie, L J
    • Dierstein, P G
  • Publication Date: 1973-7

Media Info

  • Pagination: 84 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00206544
  • Record Type: Publication
  • Source Agency: Illinois Department of Transportation
  • Report/Paper Numbers: Interim
  • Files: TRIS, STATEDOT
  • Created Date: Jun 5 1974 12:00AM