This paper assesses the marketability of a new mixing plant, called a Thermo-matic plant, by considering economic, technological, and environmental aspects, as well as the marketing aspect of the plant. The Thermo-matic plant is a drum mixer so designed that the flame and exhaust from the burner do not come into direct contact with the material being mixed. This design feature allows the recycling of old pavement, the asphalt in which would be burned in a conventional drum mixer. The Thermo-matic also provides for the addition of a softening agent, and more asphalt to attain the proper consistency and amount of asphalt in the recycled asphalt concrete. Another feature of the plant is that it produces virtually no pollution. The following conclusions were made from the study of this plant: (1) the quality of the recycled asphalt concrete should be as good as that produced with virgin asphalt; (2) the timing for the introduction of the plant is excellent as environmental concern is now high; (3) the lack of air pollution problems should enhance its acceptance; (4) a savings of over two dollars per ton of hot mix may be realized through recycling; (5) design and control procedures for recycled pavements have been developed; (6) the versatility of the Thermo-matic plant should make it attractive to prospective users.

  • Corporate Authors:

    Dunning (Robert L)

    300 South Harbor, Suite 802
    Anaheim, CA  United States  92805
  • Authors:
    • Dunning, R L
  • Publication Date: 1974-7

Subject/Index Terms

Filing Info

  • Accession Number: 00127573
  • Record Type: Publication
  • Report/Paper Numbers: Project 1000
  • Files: TRIS
  • Created Date: Dec 29 1975 12:00AM