In an effort to rejuvenate county roads at low cost, a rural road has been ripped up, its 2700 tons of asphalt materials crushed and reprocessed and then used to repave within the existing right-of-way. The $98,000 experimental work to repave the 1-mile segment consisted of 3 stages. In the first stage, the 22-ft wide surface was ripped, crushed in place, the asphaltic material was windrowed and then hauled 12 miles to the asphalt plant where they were stockpiled. A Cat 14 grader with rippers and a Cat DW 20 equipped with Hyster compactor wheels were used. The second stage consisted of subbase preparation using materials already in place in right-of-way. The 4-in. thick calcium chloride treated base was ripped and windrowed and pushed to each side. In this way, elevation was reduced about a foot as the width of the road was increased. Foreslopes were changed from between 1-1/2: 1 and 1:1 to 3:1. When completed the new pavement will be 22 ft wide with 6-ft shoulders on each side. The base materials consisted of 25 percent clay and 75 percent gravel, and had once been treated with calcium chloride. The third stage included processing the recycled materials through a drum mixer at a conventional hotmix plant. It was found necessary to add virgin asphalt. The experimental mile was divided into 4 test sections: 1/2 mile had an additional 2-1/2 percent new asphalt; next quater mile had 3-1/2 percent added; next eight mile had 4-1/2 percent; and the last eight had 4-1/2 percent with 30 percent of minus 3/4 inch limestone. Further details and plans for the future are outlined.

  • Corporate Authors:

    Dun Donnelley Publishing Corporation

    222 South Riverside Plaza
    Chicago, IL  United States  60606
  • Publication Date: 1975-10

Media Info

  • Features: Figures;
  • Pagination: 2 p.
  • Serial:
    • Roads and Streets
    • Volume: 118
    • Issue Number: 10
    • Publisher: Donnelley (Reuben H) Corporation

Subject/Index Terms

Filing Info

  • Accession Number: 00128562
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 10 1976 12:00AM