A brief account is given of the background from which modern paving practices developed. Plants, equipment and methods developed along two distinct paths: one European, and the other North American. At the end of the 19th Century the best pavement (in Europe and the U.S.) was built with a portland cement concrete base. In Europe, this was surfaced with 2 inches of rock asphalt. In the U.S., 1.5 inches of open binder was laid on the base followed by the sheet asphalt surface 1.5 to 2 inches thick. Sheet asphalt was used to resurface old pavements. By the end of 1909, sheet asphalt and Bitulithic were the two most prominent pavements for heavy traffic on city streets. The Warren Brothers plant (which introduced the modern form of the batch plant and the multiple bin separation of aggregates), the one-car railroad plant, the internal fire dryer, tandem rollers the three wheeled roller and trucks were all introduced during this period (1909-1910). These introductions underwent further development in the following years. In the decade, 1920-1930, developments revolve around the general improvement in mechanical equipment. Specifically with respect to asphalt paving, mixed-in-place and the advent of mechanical laydown are of inmeasurable importance. By the end of 1939, satisfactory mixes of all types were in use. Most of the new types were mixed-in-place products including open grading, fine gradings, and soil stabilization in addition to graded aggregates of the previous decade. The increase productivity and better smoothness requirements of the period 1950-1960 were met with the help of automation of both plant and laydown. The decade from 1960-1970 saw the revival of "thick lift" asphalt pavements and a resurgence of the full-depth asphalt concept. Continued refinement and improvement of the paving plant characterizes the first third of this decade (1970's); pavement are built faster, with fewer hazards to the work force and less damage to the environment.

  • Supplemental Notes:
    • 50th Anniversary Historical Review and Index of Proceedings, 1928-1974.
  • Corporate Authors:

    University of Minnesota, Minneapolis

    155 Experimental Engineering Building
    Minneapolis, MN  United States  55455
  • Authors:
    • Tunnicliff, D G
    • Beaty, R W
    • Holt, E H
  • Conference:
  • Publication Date: 1974

Media Info

  • Features: Figures; References;
  • Pagination: p. 159-296
  • Serial:
    • Volume: 43A

Subject/Index Terms

Filing Info

  • Accession Number: 00127525
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 7 1976 12:00AM